59#include "mysqld_error.h"
101#define COND_FILTER_ALLPASS 1.0f
103#define COND_FILTER_EQUALITY 0.1f
105#define COND_FILTER_INEQUALITY 0.3333f
107#define COND_FILTER_BETWEEN 0.1111f
114#define COND_FILTER_STALE -1.0f
130#define COND_FILTER_STALE_NO_CONST -2.0f
165#define MY_COLL_ALLOW_SUPERSET_CONV 1
166#define MY_COLL_ALLOW_COERCIBLE_CONV 2
167#define MY_COLL_DISALLOW_NONE 4
168#define MY_COLL_ALLOW_NUMERIC_CONV 8
170#define MY_COLL_ALLOW_CONV \
171 (MY_COLL_ALLOW_SUPERSET_CONV | MY_COLL_ALLOW_COERCIBLE_CONV)
172#define MY_COLL_CMP_CONV (MY_COLL_ALLOW_CONV | MY_COLL_DISALLOW_NONE)
205 uint repertoire_arg) {
290 if (is_null_terminated)
347#define NAME_STRING(x) Name_string(STRING_WITH_LEN(x))
378 void copy(
const char *str_arg,
size_t length_arg,
const CHARSET_INFO *cs_arg,
379 bool is_autogenerated_arg);
467 DBUG_PRINT(
"outer_field", (
"creating ctx %p",
this));
508 ? ER_GENERATED_COLUMN_FUNCTION_IS_NOT_ALLOWED
510 ? ER_DEFAULT_VAL_GENERATED_FUNCTION_IS_NOT_ALLOWED
511 : ER_CHECK_CONSTRAINT_FUNCTION_IS_NOT_ALLOWED);
871 static void *
operator new(
size_t size)
noexcept {
872 return (*THR_MALLOC)->Alloc(size);
875 const std::nothrow_t &arg
876 [[maybe_unused]] = std::nothrow)
noexcept {
880 static void operator delete(
void *ptr [[maybe_unused]],
881 size_t size [[maybe_unused]]) {
885 const std::nothrow_t &)
noexcept {}
1160 void rename(
char *new_name);
1190 [[maybe_unused]]) {}
1222 bool pin =
false,
bool inherit =
false) {
1261 const Query_block *outer_query_block [[maybe_unused]]) {
1262 return std::nullopt;
1283 bool no_conversions);
1297 bool no_conversions);
1329 virtual bool eq(
const Item *,
bool binary_cmp)
const;
1706 bool *incl_endp [[maybe_unused]]) {
1929 my_error(ER_NOT_SUPPORTED_YET,
MYF(0),
"item type for JSON");
1961 double rows_in_table [[maybe_unused]]) {
1963 assert((read_tables & filter_for_table) == 0);
2090 return decimal_value;
2335 bool used_alias)
const;
2353 bool skip_registered);
2463 return (this->*processor)(arg);
2469 return (*
reinterpret_cast<std::remove_reference_t<T> *
>(arg))(
this);
2475 return (*
reinterpret_cast<std::remove_reference_t<T> *
>(*arg))(
this);
2546 if ((this->*analyzer)(arg_p))
return ((this->*transformer)(arg_t));
2552 (*traverser)(
this, arg);
2665 if (table !=
nullptr && table != field->
table)
return false;
2667 table = field->
table;
2723 assert(root !=
nullptr);
2876 if (*arg) *arg =
nullptr;
3132 if (this_context == other_context) {
3547 [[maybe_unused]])
const {
3588 return item->
walk(&Item::walk_helper_thunk<T>, walk,
3589 reinterpret_cast<uchar *
>(&functor));
3599template <
class T,
class U>
3601 uchar *analyzer_ptr =
reinterpret_cast<uchar *
>(&analyzer);
3602 return item->
compile(&Item::analyze_helper_thunk<T>, &analyzer_ptr,
3603 &Item::walk_helper_thunk<U>,
3604 reinterpret_cast<uchar *
>(&transformer));
3614 return item->
transform(&Item::walk_helper_thunk<T>,
3615 pointer_cast<uchar *>(&transformer));
3694 Field *field,
bool no_conversions)
override;
3708 Field *field,
bool no_conversions) {
3857 bool no_conversions)
override {
3871 uint nitems,
int item_sep = 1) {
3896#define NO_FIELD_INDEX ((uint16)(-1))
3995 const char *table_name_arg,
const char *field_name_arg)
4010 const char *table_name_arg,
const char *field_name_arg)
4088 const char *db_name_arg,
const char *table_name_arg)
const;
4134 bool any_privileges);
4146 const char *table_name_arg)
4185 bool no_conversions)
override;
4241 if (
item_equal ==
nullptr && item_equal_arg !=
nullptr) {
4279 const char *table_name_arg,
const char *field_name_arg);
4280 Item_field(
const POS &pos,
const char *db_arg,
const char *table_name_arg,
4281 const char *field_name_arg);
4290 bool eq(
const Item *item,
bool binary_cmp)
const override;
4347 return pointer_cast<Field *>(arg) ==
field;
4351 auto mark_field = pointer_cast<Mark_field *>(arg);
4419 double rows_in_table)
override;
4440 float default_filter)
const;
4492 const char *opt_table_name)
4493 :
super(pos, opt_schema_name, opt_table_name,
"*") {}
4535 bool no_conversions)
override;
4553 bool eq(
const Item *item,
bool binary_cmp)
const override;
4584 bool no_conversions)
override;
4863 bool eq(
const Item *item,
bool binary_cmp)
const override;
4889 pointer_cast<Check_function_as_value_generator_parameters *>(args);
4994 bool no_conversions)
override;
5005 return static_cast<double>(
value);
5023 bool eq(
const Item *,
bool)
const override;
5052 bool no_conversions)
override;
5086 bool no_conversions)
override;
5124 bool no_conversions)
override;
5159 bool eq(
const Item *,
bool binary_cmp)
const override;
5210 bool no_conversions)
override;
5220 if (
value <= LLONG_MIN) {
5244 bool eq(
const Item *,
bool binary_cmp)
const override;
5294 bool no_conversions)
override;
5397 bool eq(
const Item *item,
bool binary_cmp)
const override;
5455 const char *cptr,
const char *
end,
5456 int unsigned_target);
5485 pointer_cast<Check_function_as_value_generator_parameters *>(args);
5511 pointer_cast<Check_function_as_value_generator_parameters *>(args);
5551 bool no_conversions)
override;
5589 bool eq(
const Item *item,
bool binary_cmp)
const override;
5689 return llrint(realval);
5714 bool no_conversions)
override;
5731 const char *table_name_arg,
const char *field_name_arg)
5732 :
Item_ident(context_arg, db_name_arg, table_name_arg, field_name_arg) {}
5733 Item_ref(
const POS &pos,
const char *db_name_arg,
const char *table_name_arg,
5734 const char *field_name_arg)
5735 :
Item_ident(pos, db_name_arg, table_name_arg, field_name_arg) {}
5752 const char *db_name_arg,
const char *table_name_arg,
5753 const char *field_name_arg,
bool alias_of_expr_arg =
false);
5755 const char *field_name_arg);
5772 bool eq(
const Item *item,
bool binary_cmp)
const override {
5806 if (
map != 0)
return map;
5858 if (order ==
PREFIX) (*traverser)(
this, arg);
5860 if (order ==
POSTFIX) (*traverser)(
this, arg);
5929 pointer_cast<Check_function_as_value_generator_parameters *>(args);
5958 const char *db_name_arg,
const char *alias_name_arg,
5959 const char *table_name_arg,
const char *field_name_arg,
5961 :
Item_ref(context_arg, item, db_name_arg, alias_name_arg,
5968 assert(db_name_arg ==
nullptr);
6016 bool eq(
const Item *item,
bool)
const override;
6051 bool no_conversions)
override;
6108 const char *db_name_arg,
const char *table_name_arg,
6109 const char *field_name_arg,
bool alias_of_expr_arg,
6111 :
Item_ref(context_arg, item, db_name_arg, table_name_arg, field_name_arg,
6148 :
super(context_arg, item,
"",
"",
""),
owner(master) {}
6181 bool no_conversions)
override {
6370 bool cmp()
override;
6379 bool cmp()
override;
6387 bool cmp()
override;
6395 bool cmp()
override;
6403 bool cmp()
override;
6411 bool cmp()
override;
6419 bool no_conversions)
override;
6426 bool eq(
const Item *item,
bool binary_cmp)
const override;
6451 reinterpret_cast<char *
>(args));
6477 bool no_conversions)
override {
6506 bool eq(
const Item *item,
bool binary_cmp)
const override;
6525 pointer_cast<Check_function_as_value_generator_parameters *>(args);
6573 const char *field_name_arg, ulong priv,
const bool ro)
6583 const char *field_name_arg, ulong priv,
const bool ro)
6593 bool eq(
const Item *item,
bool binary_cmp)
const override;
6610 pointer_cast<Check_function_as_value_generator_parameters *>(args);
6692 if (
example ==
nullptr)
return;
6723 bool eq(
const Item *item,
bool)
const override {
return this == item; }
6775 pointer_cast<Check_function_as_value_generator_parameters *>(args);
6888 bool no_conversions)
override;
7073 field->
field =
true;
7077 pointer_cast<Check_function_as_value_generator_parameters *>(args);
7135 bool no_conversions)
override;
7140 bool eq(
const Item *item,
bool binary_cmp)
const override;
7191 return std::count_if(fields.
begin(), fields.
end(),
7192 [](
Item *item) { return !item->hidden; });
7196 return std::count_if(fields.
begin(), fields.
end(),
7197 [](
Item *item) { return item->hidden; });
7202 for (
Item *item : fields) {
7203 if (item->hidden)
continue;
7204 if (index-- == 0)
return item;
A type for SQL-like 3-valued Booleans: true/false/unknown.
Definition: item.h:591
value
Definition: item.h:605
@ v_UNKNOWN
Definition: item.h:605
@ v_FALSE
Definition: item.h:605
@ v_TRUE
Definition: item.h:605
Bool3(value v)
This is private; instead, use false3()/etc.
Definition: item.h:607
static const Bool3 true3()
Definition: item.h:598
static const Bool3 unknown3()
Definition: item.h:596
static const Bool3 false3()
Definition: item.h:594
bool is_true() const
Definition: item.h:600
value m_val
Definition: item.h:609
bool is_unknown() const
Definition: item.h:601
bool is_false() const
Definition: item.h:602
Definition: item_cmpfunc.h:2701
bool cmp() override
Compare the value associated with the item with the stored value.
Definition: item_buff.cc:184
Cached_item_decimal(Item *item_par)
Definition: item.h:6410
my_decimal value
Definition: item.h:6407
longlong value
Definition: item.h:6391
bool cmp() override
Compare the value associated with the item with the stored value.
Definition: item_buff.cc:151
Cached_item_int(Item *item_par)
Definition: item.h:6394
Cached_item subclass for JSON values.
Definition: item.h:6374
Json_wrapper * m_value
The cached JSON value.
Definition: item.h:6375
~Cached_item_json() override
Definition: item_buff.cc:99
Cached_item_json(Item *item)
Definition: item_buff.cc:96
bool cmp() override
Compare the new JSON value in member 'item' with the previous value.
Definition: item_buff.cc:107
Cached_item_real(Item *item_par)
Definition: item.h:6386
bool cmp() override
Compare the value associated with the item with the stored value.
Definition: item_buff.cc:135
double value
Definition: item.h:6383
String tmp_value
Definition: item.h:6366
Cached_item_str(Item *arg)
Definition: item.h:6369
bool cmp() override
Compare the value associated with the item with the stored value.
Definition: item_buff.cc:76
String value
Definition: item.h:6365
Cached_item_temporal(Item *item_par)
Definition: item.h:6402
bool cmp() override
Compare the value associated with the item with the stored value.
Definition: item_buff.cc:168
longlong value
Definition: item.h:6399
This is used for segregating rows in groups (e.g.
Definition: item.h:6340
Item ** get_item_ptr()
Definition: item.h:6359
Item * item
The item whose value to cache.
Definition: item.h:6342
virtual ~Cached_item()=default
Item * get_item()
Definition: item.h:6358
virtual bool cmp()=0
Compare the value associated with the item with the stored value.
Cached_item(Item *i)
Definition: item.h:6343
bool null_value
Definition: item.h:6346
void set(Derivation derivation_arg)
Definition: item.h:219
DTCollation(const CHARSET_INFO *collation_arg, Derivation derivation_arg)
Definition: item.h:189
void set_repertoire_from_charset(const CHARSET_INFO *cs)
Definition: item.h:180
bool aggregate(DTCollation &dt, uint flags=0)
Aggregate two collations together taking into account their coercibility (aka derivation):.
Definition: item.cc:2403
void set(const DTCollation &dt)
Definition: item.h:194
DTCollation()
Definition: item.h:184
void set(const CHARSET_INFO *collation_arg, Derivation derivation_arg, uint repertoire_arg)
Definition: item.h:204
bool set(DTCollation &dt1, DTCollation &dt2, uint flags=0)
Definition: item.h:222
void set_numeric()
Definition: item.h:210
void set_repertoire(uint repertoire_arg)
Definition: item.h:220
const CHARSET_INFO * collation
Definition: item.h:176
Derivation derivation
Definition: item.h:177
const char * derivation_name() const
Definition: item.h:226
void set(const CHARSET_INFO *collation_arg, Derivation derivation_arg)
Definition: item.h:199
uint repertoire
Definition: item.h:178
void set(const CHARSET_INFO *collation_arg)
Definition: item.h:215
A field that stores a JSON value.
Definition: field.h:3976
const CHARSET_INFO * charset_for_protocol() const
Definition: field.h:1586
virtual Item_result cast_to_int_type() const
Definition: field.h:1035
static constexpr size_t MAX_LONG_BLOB_WIDTH
Definition: field.h:737
virtual bool is_array() const
Whether the field is a typed array.
Definition: field.h:1789
static constexpr size_t MAX_VARCHAR_WIDTH
Definition: field.h:731
const char * field_name
Definition: field.h:686
virtual uint32 max_display_length() const =0
TABLE * table
Pointer to TABLE object that owns this field.
Definition: field.h:681
bool is_null(ptrdiff_t row_offset=0) const
Check whether the full table's row is NULL or the Field has value NULL.
Definition: field.h:1215
virtual my_decimal * val_decimal(my_decimal *) const =0
bool is_tmp_nullable() const
Definition: field.h:899
virtual double val_real() const =0
virtual longlong val_int() const =0
virtual Item_result numeric_context_result_type() const
Returns Item_result type of a field when it appears in numeric context such as: SELECT time_column + ...
Definition: field.h:1031
virtual bool eq_def(const Field *field) const
Definition: field.cc:8436
virtual bool get_date(MYSQL_TIME *ltime, my_time_flags_t fuzzydate) const
Definition: field.cc:2098
geometry_type
Definition: field.h:718
@ GEOM_GEOMETRY
Definition: field.h:719
virtual Item_result result_type() const =0
bool is_nullable() const
Definition: field.h:1288
virtual geometry_type get_geometry_type() const
Definition: field.h:1669
static Item_result result_merge_type(enum_field_types)
Detect Item_result by given field type of UNION merge result.
Definition: field.cc:1359
String * val_str(String *str) const
Definition: field.h:1000
bool is_field_for_functional_index() const
Definition: field.h:865
virtual bool get_time(MYSQL_TIME *ltime) const
Definition: field.cc:2105
static constexpr size_t MAX_MEDIUM_BLOB_WIDTH
Definition: field.h:736
void dbug_print() const
Definition: field.h:1676
Context object for (functions that override) Item::clean_up_after_removal().
Definition: item.h:2720
Query_block *const m_root
Pointer to Cleanup_after_removal_context containing from which select the walk started,...
Definition: item.h:2734
Cleanup_after_removal_context(Query_block *root)
Definition: item.h:2722
Query_block * get_root()
Definition: item.h:2726
List< Item > * m_items
Definition: item.h:2575
Collect_item_fields_or_refs(List< Item > *fields_or_refs)
Definition: item.h:2576
Collect_item_fields_or_refs(const Collect_item_fields_or_refs &)=delete
Collect_item_fields_or_refs & operator=(const Collect_item_fields_or_refs &)=delete
Collect_item_fields_or_view_refs(const Collect_item_fields_or_view_refs &)=delete
Query_block * m_transformed_block
Definition: item.h:2590
List< Item > * m_item_fields_or_view_refs
Definition: item.h:2589
Collect_item_fields_or_view_refs(List< Item > *fields_or_vr, Query_block *transformed_block)
Definition: item.h:2591
Collect_item_fields_or_view_refs & operator=(const Collect_item_fields_or_view_refs &)=delete
Interface for storing an aggregation of type and type specification of multiple Item objects.
Definition: item.h:7044
longlong val_int() override=0
Item_result result_type() const override
Return expression type of Item_aggregate_type.
Definition: item.cc:10255
my_decimal * val_decimal(my_decimal *) override=0
void set_typelib(Item *item)
Set typelib information for an aggregated enum/set field.
Definition: item.cc:10527
bool get_time(MYSQL_TIME *) override=0
Item_aggregate_type(THD *, Item *)
Definition: item.cc:10236
bool get_date(MYSQL_TIME *, my_time_flags_t) override=0
String * val_str(String *) override=0
bool check_function_as_value_generator(uchar *args) override
Check if this item is allowed for a virtual column or inside a default expression.
Definition: item.h:7075
static uint32 display_length(Item *item)
Calculate length for merging result for given Item type.
Definition: item.cc:10410
void make_field(Send_field *field) override
Definition: item.h:7070
Field * make_field_by_type(TABLE *table, bool strict)
Make temporary table field according collected information about type of UNION result.
Definition: item.cc:10472
bool join_types(THD *, Item *)
Find field type which can carry current Item_aggregate_type type and type of given Item.
Definition: item.cc:10336
double val_real() override=0
Field::geometry_type get_geometry_type() const override
Definition: item.h:7067
TYPELIB * m_typelib
Typelib information, only used for data type ENUM and SET.
Definition: item.h:7047
Field::geometry_type geometry_type
Geometry type, only used for data type GEOMETRY.
Definition: item.h:7049
Represents [schema.
Definition: item.h:4480
bool is_asterisk() const override
Checks if the current object represents an asterisk select list item.
Definition: item.h:4500
Item_asterisk(const POS &pos, const char *opt_schema_name, const char *opt_table_name)
Constructor.
Definition: item.h:4491
bool itemize(Parse_context *pc, Item **res) override
The same as contextualize() but with additional parameter.
Definition: item.cc:10908
Item_field super
Definition: item.h:4481
bool fix_fields(THD *, Item **) override
Resolve the name of a column reference.
Definition: item.h:4496
Item_basic_constant(const POS &pos)
Definition: item.h:3625
void cleanup() override
Called for every Item after use (preparation and execution).
Definition: item.h:3634
void set_str_value(String *str)
Definition: item.h:3642
bool basic_const_item() const override
Returns true if this is a simple constant item like an integer, not a constant expression.
Definition: item.h:3641
void set_used_tables(table_map map)
Definition: item.h:3630
table_map used_table_map
Definition: item.h:3621
bool check_function_as_value_generator(uchar *) override
Check if this item is allowed for a virtual column or inside a default expression.
Definition: item.h:3632
Item_basic_constant()
Definition: item.h:3624
table_map used_tables() const override
Definition: item.h:3631
Item_bin_string(const char *str, size_t str_length)
Definition: item.h:5603
void bin_string_init(const char *str, size_t str_length)
Definition: item.cc:7249
static LEX_CSTRING make_bin_str(const char *str, size_t str_length)
Definition: item.cc:7219
Item_hex_string super
Definition: item.h:5600
Item_bin_string(const POS &pos, const LEX_STRING &literal)
Definition: item.h:5606
Item_blob(const char *name, size_t length)
Definition: item.h:5503
enum Type type() const override
Definition: item.h:5508
bool check_function_as_value_generator(uchar *args) override
Check if this item is allowed for a virtual column or inside a default expression.
Definition: item.h:5509
Cache class for BIT type expressions.
Definition: item.h:6823
Item_cache_bit(enum_field_types field_type_arg)
Definition: item.h:6825
uint string_length()
Definition: item.h:6835
String * val_str(String *str) override
Transform the result Item_cache_int::value in bit format.
Definition: item.cc:9656
longlong val_int() override
Definition: item.cc:9852
longlong val_time_temporal() override
Return time value of item in packed longlong format.
Definition: item.cc:9827
longlong int_value
Definition: item.h:6975
longlong val_date_temporal() override
Return date value of item in packed longlong format.
Definition: item.cc:9840
bool cache_value() override
Definition: item.cc:9687
my_decimal * val_decimal(my_decimal *) override
Definition: item.cc:9744
void store_value(Item *item, longlong val_arg)
Definition: item.cc:9703
bool get_time(MYSQL_TIME *ltime) override
Definition: item.cc:9799
String * val_str(String *str) override
Definition: item.cc:9716
bool get_date(MYSQL_TIME *ltime, my_time_flags_t fuzzydate) override
Definition: item.cc:9765
bool str_value_cached
Definition: item.h:6976
Item_result result_type() const override
Definition: item.h:6994
void clear() override
Definition: item.h:7004
String cached_string
Definition: item.h:6972
void store(Item *item) override
Assigns to the cache the expression to be cached.
Definition: item.cc:9711
bool cache_value_int()
Definition: item.cc:9672
Item_cache_datetime(enum_field_types field_type_arg)
Definition: item.h:6979
double val_real() override
Definition: item.cc:9825
double val_real() override
Definition: item.cc:10032
my_decimal decimal_value
Definition: item.h:6861
bool cache_value() override
Definition: item.cc:10016
bool get_date(MYSQL_TIME *ltime, my_time_flags_t fuzzydate) override
Definition: item.h:6870
longlong val_int() override
Definition: item.cc:10040
Item_cache_decimal()
Definition: item.h:6864
String * val_str(String *str) override
Definition: item.cc:10048
void store_value(Item *expr, my_decimal *d)
Definition: item.cc:10025
my_decimal * val_decimal(my_decimal *) override
Definition: item.cc:10057
bool get_time(MYSQL_TIME *ltime) override
Definition: item.h:6873
Item_result result_type() const override
Definition: item.h:6876
double val_real() override
Definition: item.cc:9643
longlong val_int() override
Definition: item.cc:9650
bool get_date(MYSQL_TIME *ltime, my_time_flags_t fuzzydate) override
Definition: item.h:6809
longlong value
Definition: item.h:6791
Item_cache_int(enum_field_types field_type_arg)
Definition: item.h:6795
longlong val_date_temporal() override
Return date value of item in packed longlong format.
Definition: item.h:6806
longlong val_time_temporal() override
Return time value of item in packed longlong format.
Definition: item.h:6805
Item_result result_type() const override
Definition: item.h:6813
Item_cache_int()
Definition: item.h:6794
bool cache_value() override
Definition: item.cc:9612
bool get_time(MYSQL_TIME *ltime) override
Definition: item.h:6812
my_decimal * val_decimal(my_decimal *) override
Definition: item.cc:9636
void store_value(Item *item, longlong val_arg)
Unlike store(), this stores an explicitly provided value, not the one of 'item'; however,...
Definition: item.cc:9621
String * val_str(String *str) override
Definition: item.cc:9629
An item cache for values of type JSON.
Definition: item.h:7011
Item_result result_type() const override
Definition: item.h:7025
my_decimal * val_decimal(my_decimal *val) override
Definition: item.cc:9929
bool m_is_sorted
Whether the cached value is array and it is sorted.
Definition: item.h:7015
bool get_date(MYSQL_TIME *ltime, my_time_flags_t fuzzydate) override
Definition: item.cc:9939
Json_wrapper * m_value
Cached value.
Definition: item.h:7013
bool cache_value() override
Read the JSON value and cache it.
Definition: item.cc:9865
Item_cache_json()
Definition: item.cc:9854
bool get_time(MYSQL_TIME *ltime) override
Definition: item.cc:9949
~Item_cache_json() override
Definition: item.cc:9859
bool val_json(Json_wrapper *wr) override
Copy the cached JSON value into a wrapper.
Definition: item.cc:9898
bool is_sorted()
Returns true when cached value is array and it's sorted.
Definition: item.h:7034
void store_value(Item *expr, Json_wrapper *wr)
Definition: item.cc:9882
double val_real() override
Definition: item.cc:9919
String * val_str(String *str) override
Definition: item.cc:9908
void sort()
Sort cached data. Only arrays are affected.
Definition: item.cc:9968
longlong val_int() override
Definition: item.cc:9959
bool get_date(MYSQL_TIME *ltime, my_time_flags_t fuzzydate) override
Definition: item.h:6848
Item_cache_real()
Definition: item.h:6842
void store_value(Item *expr, double value)
Definition: item.cc:9984
double value
Definition: item.h:6839
my_decimal * val_decimal(my_decimal *) override
Definition: item.cc:10009
bool cache_value() override
Definition: item.cc:9976
Item_result result_type() const override
Definition: item.h:6854
double val_real() override
Definition: item.cc:9990
bool get_time(MYSQL_TIME *ltime) override
Definition: item.h:6851
String * val_str(String *str) override
Definition: item.cc:10002
longlong val_int() override
Definition: item.cc:9996
Item * element_index(uint i) override
Definition: item.h:6962
longlong val_int() override
Definition: item.h:6938
double val_real() override
Definition: item.h:6934
bool null_inside() override
Definition: item.cc:10218
Item_result result_type() const override
Definition: item.h:6959
Item ** addr(uint i) override
Definition: item.h:6963
bool allocate(uint num) override
'allocate' is only used in Item_cache_row::setup()
Definition: item.cc:10148
Item_cache_row()
Definition: item.h:6920
void bring_value() override
Definition: item.cc:10229
bool get_time(MYSQL_TIME *) override
Definition: item.h:6954
my_decimal * val_decimal(my_decimal *) override
Definition: item.h:6946
void make_field(Send_field *) override
Definition: item.h:6933
void illegal_method_call(const char *) const
Definition: item.cc:10202
bool get_date(MYSQL_TIME *, my_time_flags_t) override
Definition: item.h:6950
uint item_count
Definition: item.h:6917
bool check_cols(uint c) override
Definition: item.cc:10210
bool cache_value() override
Definition: item.cc:10179
uint cols() const override
Definition: item.h:6961
bool setup(Item *item) override
Definition: item.cc:10155
void store(Item *item) override
Assigns to the cache the expression to be cached.
Definition: item.cc:10168
void cleanup() override
Called for every Item after use (preparation and execution).
Definition: item.h:6967
Item_cache ** values
Definition: item.h:6916
String * val_str(String *) override
Definition: item.h:6942
type_conversion_status save_in_field_inner(Field *field, bool no_conversions) override
Helper function which does all of the work for save_in_field(Field*, bool), except some error checkin...
Definition: item.cc:10134
bool get_date(MYSQL_TIME *ltime, my_time_flags_t fuzzydate) override
Definition: item.h:6903
bool get_time(MYSQL_TIME *ltime) override
Definition: item.h:6906
bool cache_value() override
Definition: item.cc:10063
Item_result result_type() const override
Definition: item.h:6909
void store_value(Item *expr, String &s)
Definition: item.cc:10085
String value_buff
Definition: item.h:6883
my_decimal * val_decimal(my_decimal *) override
Definition: item.cc:10123
const CHARSET_INFO * charset() const
Definition: item.h:6910
double val_real() override
Definition: item.cc:10095
String * val_str(String *) override
Definition: item.cc:10117
longlong val_int() override
Definition: item.cc:10106
char buffer[STRING_BUFFER_USUAL_SIZE]
Definition: item.h:6882
String * value
Definition: item.h:6883
bool is_varbinary
Definition: item.h:6884
Item_cache_str(const Item *item)
Definition: item.h:6891
bool walk(Item_processor processor, enum_walk walk, uchar *arg) override
Traverses a tree of Items in prefix and/or postfix order.
Definition: item.cc:9583
void cleanup() override
Called for every Item after use (preparation and execution).
Definition: item.cc:9601
Field * field()
If this item caches a field value, return pointer to underlying field.
Definition: item.h:6736
Item * get_example() const
Definition: item.h:6785
bool eq_def(const Field *field)
Definition: item.h:6720
Item_field * cached_field
Field that this object will get value from.
Definition: item.h:6663
virtual bool allocate(uint)
Definition: item.h:6697
Item ** get_example_ptr()
Definition: item.h:6786
bool is_non_const_over_literals(uchar *) override
Definition: item.h:6772
bool has_value()
Check if saved item has a non-NULL value.
Definition: item.cc:9589
Item_result result_type() const override
Definition: item.h:6781
friend bool has_rollup_result(Item *item)
Checks if an item has a ROLLUP NULL which needs to be written to temp table.
Definition: sql_executor.cc:308
bool basic_const_item() const override
Returns true if this is a simple constant item like an integer, not a constant expression.
Definition: item.h:6761
void fix_after_pullout(Query_block *parent_query_block, Query_block *removed_query_block) override
Fix after tables have been moved from one query_block level to the parent level, e....
Definition: item.h:6690
virtual bool cache_value()=0
void store_null()
Force an item to be null.
Definition: item.h:6749
Item_cache(enum_field_types field_type_arg)
Definition: item.h:6683
table_map used_table_map
Definition: item.h:6657
enum Type type() const override
Definition: item.h:6714
Item_cache()
Definition: item.h:6678
virtual void store(Item *item)
Assigns to the cache the expression to be cached.
Definition: item.cc:9564
virtual bool setup(Item *item)
Definition: item.h:6698
bool value_cached
Definition: item.h:6671
table_map used_tables() const override
Definition: item.h:6717
bool is_null() override
The method allows to determine nullness of a complex expression without fully evaluating it,...
Definition: item.h:6769
virtual void clear()
Definition: item.h:6765
bool check_function_as_value_generator(uchar *args) override
Check if this item is allowed for a virtual column or inside a default expression.
Definition: item.h:6773
Item * example
Definition: item.h:6656
friend bool replace_contents_of_rollup_wrappers_with_tmp_fields(THD *thd, Query_block *select, Item *item_arg)
For each rollup wrapper below the given item, replace its argument with a temporary field,...
Definition: sql_executor.cc:4357
static Item_cache * get_cache(const Item *item)
Definition: item.cc:9521
void print(const THD *thd, String *str, enum_query_type query_type) const override
This method is used for to:
Definition: item.cc:9573
bool store_and_cache(Item *item)
Definition: item.h:6756
bool eq(const Item *item, bool) const override
Definition: item.h:6723
uint m_case_expr_id
Definition: item.h:3807
Type type() const override
Definition: item.h:3794
Item * this_item() override
Definition: item.cc:1873
Item_case_expr(uint case_expr_id)
Definition: item.cc:1869
Item ** this_item_addr(THD *thd, Item **) override
Definition: item.cc:1885
void print(const THD *thd, String *str, enum_query_type query_type) const override
This method is used for to:
Definition: item.cc:1891
Item_result result_type() const override
Definition: item.h:3795
longlong val_date_temporal() override
Return date value of item in packed longlong format.
Definition: item.h:6239
Item_datetime_with_ref(enum_field_types field_type_arg, uint8 decimals_arg, longlong i, Item *ref_arg)
Constructor for Item_datetime_with_ref.
Definition: item.h:6234
longlong val_time_temporal() override
Return time value of item in packed longlong format.
Definition: item.h:6240
Item * clone_item() const override
Definition: item.cc:6895
uint decimal_precision() const override
Definition: item.h:5158
bool eq(const Item *, bool binary_cmp) const override
Definition: item.cc:3387
String * val_str(String *) override
Definition: item.cc:3370
void print(const THD *thd, String *str, enum_query_type query_type) const override
This method is used for to:
Definition: item.cc:3376
Item_result result_type() const override
Definition: item.h:5137
longlong val_int() override
Definition: item.cc:3358
enum Type type() const override
Definition: item.h:5136
my_decimal * val_decimal(my_decimal *) override
Definition: item.h:5141
my_decimal decimal_value
Definition: item.h:5122
double val_real() override
Definition: item.cc:3364
bool get_date(MYSQL_TIME *ltime, my_time_flags_t fuzzydate) override
Definition: item.h:5142
bool check_partition_func_processor(uchar *) override
Check if a partition function is allowed.
Definition: item.h:5161
type_conversion_status save_in_field_inner(Field *field, bool no_conversions) override
Helper function which does all of the work for save_in_field(Field*, bool), except some error checkin...
Definition: item.cc:6854
Item_num super
Definition: item.h:5119
Item_decimal(const POS &pos, const char *str_arg, uint length, const CHARSET_INFO *charset)
Definition: item.cc:3299
Item * clone_item() const override
Definition: item.h:5148
Item_num * neg() override
Definition: item.h:5153
void set_decimal_value(const my_decimal *value_par)
Definition: item.cc:3402
bool get_time(MYSQL_TIME *ltime) override
Definition: item.h:5145
bool itemize(Parse_context *pc, Item **res) override
The same as contextualize() but with additional parameter.
Definition: item.cc:8855
Item * transform(Item_transformer transformer, uchar *args) override
Perform a generic transformation of the Item tree, by adding zero or more additional Item objects to ...
Definition: item.cc:8994
type_conversion_status save_in_field_inner(Field *field, bool no_conversions) override
Helper function which does all of the work for save_in_field(Field*, bool), except some error checkin...
Definition: item.cc:8950
void print(const THD *thd, String *str, enum_query_type query_type) const override
This method is used for to:
Definition: item.cc:8939
Item_default_value(const POS &pos, Item *a=nullptr)
Definition: item.h:6422
bool eq(const Item *item, bool binary_cmp) const override
Definition: item.cc:8871
void bind_fields() override
Bind objects from the current execution context to field objects in item trees.
Definition: item.cc:8929
bool walk(Item_processor processor, enum_walk walk, uchar *args) override
Traverses a tree of Items in prefix and/or postfix order.
Definition: item.h:6443
Item_field super
Definition: item.h:6415
bool check_column_privileges(uchar *) override
Check privileges of base table column.
Definition: item.h:6441
table_map used_tables() const override
Definition: item.h:6432
bool check_gcol_depend_default_processor(uchar *args) override
Check if a generated expression depends on DEFAULT function with specific column name as argument.
Definition: item.h:6449
Item * arg
The argument for this function.
Definition: item.h:6459
bool collect_item_field_or_view_ref_processor(uchar *arg) override
Collects fields and view references that have the qualifying table in the specified query block.
Definition: item.cc:6156
Item * argument() const
Definition: item.h:6455
uchar * m_rowbuffer_saved
Pointer to row buffer that was used to calculate field value offset.
Definition: item.h:6461
bool fix_fields(THD *, Item **) override
Resolve the name of a column reference.
Definition: item.cc:8876
enum Type type() const override
Definition: item.h:6425
Item * replace_item_field(uchar *) override
If this default value is the target of replacement, replace it with the info object's item or,...
Definition: item.cc:6180
Item * get_tmp_table_item(THD *thd) override
If an Item is materialized in a temporary table, a different Item may have to be used in the part of ...
Definition: item.h:6433
void cleanup() override
Called for every Item after use (preparation and execution).
Definition: item.h:6429
Item_empty_string – is a utility class to put an item into List<Item> which is then used in protocol....
Definition: item.h:5523
void make_field(Send_field *field) override
Definition: item.cc:6275
Item_empty_string(const char *header, size_t length, const CHARSET_INFO *cs=nullptr)
Definition: item.h:5525
Definition: item_cmpfunc.h:2561
Item * replace_equal_field(uchar *) override
Replace an Item_field for an equal Item_field that evaluated earlier (if any).
Definition: item.cc:6226
bool check_column_privileges(uchar *arg) override
Check privileges of base table column.
Definition: item.cc:1163
bool collect_item_field_or_ref_processor(uchar *arg) override
When collecting information about columns when transforming correlated scalar subqueries using derive...
Definition: item.cc:855
bool check_column_in_window_functions(uchar *arg) override
Check if this column is found in PARTITION clause of all the window functions.
Definition: item.cc:1012
bool eq(const Item *item, bool binary_cmp) const override
Definition: item.cc:3092
bool find_field_processor(uchar *arg) override
Is this an Item_field which references the given Field argument?
Definition: item.h:4346
bool get_date(MYSQL_TIME *ltime, my_time_flags_t fuzzydate) override
Definition: item.cc:3070
Item * safe_charset_converter(THD *thd, const CHARSET_INFO *tocs) override
Definition: item.cc:5923
bool alias_name_used() const override
Definition: item.h:4446
bool any_privileges
Definition: item.h:4271
bool check_partition_func_processor(uchar *) override
Check if a partition function is allowed.
Definition: item.h:4359
void set_item_equal(Item_equal *item_equal_arg)
Definition: item.h:4240
enum Type type() const override
Definition: item.h:4289
bool add_field_to_cond_set_processor(uchar *) override
Item::walk function.
Definition: item.cc:894
Item_result numeric_context_result_type() const override
Result type when an item appear in a numeric context.
Definition: item.h:4307
void set_item_equal_all_join_nests(Item_equal *item_equal)
Definition: item.h:4246
Item_equal * item_equal_all_join_nests
Definition: item.h:4261
void set_field(Field *field)
Definition: item.cc:2881
Item_result cast_to_int_type() const override
Definition: item.h:4311
const Item_field * base_item_field() const
Definition: item.h:4325
bool collect_item_field_processor(uchar *arg) override
Store the pointer to this item field into a list if not already there.
Definition: item.cc:828
Item * replace_with_derived_expr_ref(uchar *arg) override
Assuming this expression is part of a condition that would be pushed to the HAVING clause of a materi...
Definition: item.cc:1076
uint16 field_index
Index for this field in table->field array.
Definition: item.h:4238
const CHARSET_INFO * charset_for_protocol(void) override
Definition: item.h:4392
bool subst_argument_checker(uchar **arg) override
Check whether a field can be substituted by an equal item.
Definition: item.cc:6037
void print(const THD *thd, String *str, enum_query_type query_type) const override
This method is used for to:
Definition: item.cc:7899
Field * result_field
Result field.
Definition: item.h:4203
Item_result result_type() const override
Definition: item.h:4306
uint32 max_disp_length()
Definition: item.h:4377
void dbug_print() const
Definition: item.h:4397
double val_real() override
Definition: item.cc:3028
bool find_item_in_field_list_processor(uchar *arg) override
Check if an Item_field references some field from a list of fields.
Definition: item.cc:923
void save_org_in_field(Field *field) override
Set a field's value from a item.
Definition: item.cc:6578
void make_field(Send_field *tmp_field) override
Definition: item.cc:6524
bool get_time(MYSQL_TIME *ltime) override
Definition: item.cc:3078
void set_base_item_field(const Item_field *item)
Definition: item.h:4321
bool get_timeval(my_timeval *tm, int *warnings) override
Get timestamp in "struct timeval" format.
Definition: item.cc:3086
enum_monotonicity_info get_monotonicity_info() const override
Definition: item.h:4314
float get_cond_filter_default_probability(double max_distinct_values, float default_filter) const
Returns the probability for the predicate "col OP <val>" to be true for a row in the case where no in...
Definition: item.cc:7940
Item_field * field_for_view_update() override
Definition: item.h:4378
const Item_field * m_base_item_field
If this field is derived from another field, e.g.
Definition: item.h:4225
void set_result_field(Field *field_arg) override
Definition: item.h:4318
bool send(Protocol *protocol, String *str_arg) override
This is only called from items that is not of type item_field.
Definition: item.cc:7864
int fix_outer_field(THD *thd, Field **field, Item **reference)
Resolve the name of an outer select column reference.
Definition: item.cc:5253
Table_ref * table_ref
Table containing this resolved field.
Definition: item.h:4197
table_map used_tables() const override
Definition: item.cc:3128
bool is_null() override
The method allows to determine nullness of a complex expression without fully evaluating it,...
Definition: item.h:4331
Item_equal * item_equal
Used during optimization to perform multiple equality analysis, this analysis should be performed dur...
Definition: item.h:4233
void reset_field()
Reset all aspect of a field object, so that it can be re-resolved.
Definition: item.cc:5965
Field * field
Source field.
Definition: item.h:4199
Item * update_value_transformer(uchar *select_arg) override
Add the field to the select list and substitute it for the reference to the field.
Definition: item.cc:7885
bool check_column_in_group_by(uchar *arg) override
Check if this column is found in GROUP BY.
Definition: item.cc:1046
uint32_t last_org_destination_field_memcpyable
Definition: item.h:4217
uint have_privileges
Definition: item.h:4269
bool returns_array() const override
Whether the item returns array of its data type.
Definition: item.h:4453
Item * replace_item_field(uchar *) override
If this field is the target is the target of replacement, replace it with the info object's item or,...
Definition: item.cc:6135
longlong val_date_temporal() override
Return date value of item in packed longlong format.
Definition: item.cc:3046
void bind_fields() override
Bind objects from the current execution context to field objects in item trees.
Definition: item.cc:5894
void set_can_use_prefix_key() override
Definition: item.h:4455
uint32_t last_destination_field_memcpyable
Definition: item.h:4218
Item * equal_fields_propagator(uchar *arg) override
If field matches a multiple equality, set a pointer to that object in the field.
Definition: item.cc:6094
longlong val_time_temporal() override
Return time value of item in packed longlong format.
Definition: item.cc:3040
String * val_str(String *) override
Definition: item.cc:3013
Item * get_tmp_table_item(THD *thd) override
If an Item is materialized in a temporary table, a different Item may have to be used in the part of ...
Definition: item.cc:3219
my_decimal * val_decimal(my_decimal *) override
Definition: item.cc:3064
Field::geometry_type get_geometry_type() const override
Definition: item.h:4388
bool add_field_to_set_processor(uchar *arg) override
Item::walk function.
Definition: item.cc:885
Item * replace_with_derived_expr(uchar *arg) override
Assuming this expression is part of a condition that would be pushed to the WHERE clause of a materia...
Definition: item.cc:1059
bool strip_db_table_name_processor(uchar *) override
Generated fields don't need db/table names.
Definition: item.cc:10854
bool remove_column_from_bitmap(uchar *arg) override
Visitor interface for removing all column expressions (Item_field) in this expression tree from a bit...
Definition: item.cc:901
bool is_outer_field() const override
Definition: item.h:4384
bool repoint_const_outer_ref(uchar *arg) override
If this object is the real_item of an Item_ref, repoint the result_field to field.
Definition: item.cc:10843
bool no_constant_propagation
If true, the optimizer's constant propagation will not replace this item with an equal constant.
Definition: item.h:4264
bool val_json(Json_wrapper *result) override
Get a JSON value from an Item.
Definition: item.cc:3020
bool collect_item_field_or_view_ref_processor(uchar *arg) override
Collects fields and view references that have the qualifying table in the specified query block.
Definition: item.cc:872
bool is_valid_for_pushdown(uchar *arg) override
Check if all the columns present in this expression are from the derived table.
Definition: item.cc:934
Item_ident super
Definition: item.h:4171
virtual bool is_asterisk() const
Checks if the current object represents an asterisk select list item.
Definition: item.h:4466
Field * tmp_table_field(TABLE *) override
Definition: item.h:4320
bool can_use_prefix_key
Definition: item.h:4276
void fix_after_pullout(Query_block *parent_query_block, Query_block *removed_query_block) override
Fix after tables have been moved from one query_block level to the parent level, e....
Definition: item.h:4175
Item_field(Name_resolution_context *context_arg, const char *db_arg, const char *table_name_arg, const char *field_name_arg)
Constructor used for internal information queries.
Definition: item.cc:2738
type_conversion_status save_in_field_inner(Field *field, bool no_conversions) override
Helper function which does all of the work for save_in_field(Field*, bool), except some error checkin...
Definition: item.cc:6593
longlong val_date_temporal_at_utc() override
Definition: item.cc:3058
void cleanup() override
Called for every Item after use (preparation and execution).
Definition: item.cc:5928
longlong val_int() override
Definition: item.cc:3034
float get_filtering_effect(THD *thd, table_map filter_for_table, table_map read_tables, const MY_BITMAP *fields_to_ignore, double rows_in_table) override
Calculate condition filtering effect for "WHERE field", which implicitly means "WHERE field <> 0".
Definition: item.cc:7928
longlong val_time_temporal_at_utc() override
Definition: item.cc:3052
Field * last_org_destination_field
Definition: item.h:4215
bool used_tables_for_level(uchar *arg) override
Return used table information for the specified query block (level).
Definition: item.cc:3134
TYPELIB * get_typelib() const override
Get the typelib information for an item of type set or enum.
Definition: item.cc:3009
bool mark_field_in_map(uchar *arg) override
Mark underlying field in read or write map of a table.
Definition: item.h:4350
bool check_function_as_value_generator(uchar *args) override
Check if this item is allowed for a virtual column or inside a default expression.
Definition: item.cc:1110
bool disable_constant_propagation(uchar *) override
Definition: item.h:4372
bool replace_field_processor(uchar *arg) override
A processor that replaces any Fields with a Create_field_wrapper.
Definition: sql_table.cc:7496
Field * last_destination_field
Definition: item.h:4216
Field * get_tmp_table_field() override
If this Item is being materialized into a temporary table, returns the field that is being materializ...
Definition: item.h:4319
bool itemize(Parse_context *pc, Item **res) override
The same as contextualize() but with additional parameter.
Definition: item.cc:2773
Item_equal * find_item_equal(COND_EQUAL *cond_equal) const
Find a field among specified multiple equalities.
Definition: item.cc:5993
longlong val_int_endpoint(bool left_endp, bool *incl_endp) override
Definition: item.cc:3230
bool fix_fields(THD *, Item **) override
Resolve the name of a column reference.
Definition: item.cc:5692
Item_num super
Definition: item.h:5165
longlong val_int() override
Definition: item.h:5218
Name_string presentation
Definition: item.h:5167
bool get_date(MYSQL_TIME *ltime, my_time_flags_t fuzzydate) override
Definition: item.h:5229
Item_float(double value_par, uint decimal_par)
Definition: item.h:5198
Item_float(const POS &pos, const Name_string name_arg, double val_arg, uint decimal_par, uint length)
Definition: item.h:5187
Item * clone_item() const override
Definition: item.h:5235
void init(const char *str_arg, uint length)
This function is only called during parsing:
Definition: item.cc:6965
Item_float(const char *str_arg, uint length)
Definition: item.h:5172
double val_real() override
Definition: item.h:5214
type_conversion_status save_in_field_inner(Field *field, bool no_conversions) override
Helper function which does all of the work for save_in_field(Field*, bool), except some error checkin...
Definition: item.cc:6982
void print(const THD *thd, String *str, enum_query_type query_type) const override
This method is used for to:
Definition: item.cc:6990
bool eq(const Item *, bool binary_cmp) const override
Definition: item.cc:7012
bool get_time(MYSQL_TIME *ltime) override
Definition: item.h:5232
Item_num * neg() override
Definition: item.h:5238
String * val_str(String *) override
Definition: item.cc:3410
my_decimal * val_decimal(my_decimal *) override
Definition: item.cc:3417
double value
Definition: item.h:5170
Item_float(const Name_string name_arg, double val_arg, uint decimal_par, uint length)
Definition: item.h:5177
Item_float(const POS &pos, const char *str_arg, uint length)
Definition: item.h:5173
enum Type type() const override
Definition: item.h:5213
void print(const THD *, String *str, enum_query_type) const override
This method is used for to:
Definition: item.h:5255
const Name_string func_name
Definition: item.h:5248
Item * safe_charset_converter(THD *thd, const CHARSET_INFO *tocs) override
Definition: item.cc:1337
Item_func_pi(const POS &pos)
Definition: item.h:5251
Item * safe_charset_converter(THD *thd, const CHARSET_INFO *tocs) override
Definition: item.cc:7204
uint decimal_precision() const override
Definition: item.cc:7057
Item_result result_type() const override
Definition: item.h:5582
Item_result cast_to_int_type() const override
Definition: item.h:5586
my_decimal * val_decimal(my_decimal *) override
Definition: item.cc:7132
void hex_string_init(const char *str, uint str_length)
Definition: item.cc:7083
Item_result numeric_context_result_type() const override
Result type when an item appear in a numeric context.
Definition: item.h:5583
bool get_time(MYSQL_TIME *ltime) override
Definition: item.h:5579
enum Type type() const override
Definition: item.h:5562
bool get_date(MYSQL_TIME *ltime, my_time_flags_t fuzzydate) override
Definition: item.h:5576
Item_hex_string()
Definition: item.cc:7030
longlong val_int() override
Definition: item.cc:7093
Item_basic_constant super
Definition: item.h:5547
Item * clone_item() const override
Definition: item.h:5568
static LEX_CSTRING make_hex_str(const char *str, size_t str_length)
Definition: item.cc:7041
type_conversion_status save_in_field_inner(Field *field, bool no_conversions) override
Helper function which does all of the work for save_in_field(Field*, bool), except some error checkin...
Definition: item.cc:7140
double val_real() override
Definition: item.h:5563
bool eq(const Item *item, bool binary_cmp) const override
Definition: item.cc:7193
String * val_str(String *) override
Definition: item.h:5571
void print(const THD *thd, String *str, enum_query_type query_type) const override
This method is used for to:
Definition: item.cc:7171
bool check_partition_func_processor(uchar *) override
Check if a partition function is allowed.
Definition: item.h:5591
Item_hex_string(const POS &pos)
Definition: item.h:5555
my_decimal * val_decimal(my_decimal *dec) override
Definition: item.h:4154
const CHARSET_INFO * charset_for_protocol() override
Definition: item.h:4162
Item_ident_for_show(Field *par_field, const char *db_arg, const char *table_name_arg)
Definition: item.h:4145
bool get_date(MYSQL_TIME *ltime, my_time_flags_t fuzzydate) override
Definition: item.h:4157
const char * table_name
Definition: item.h:4143
enum Type type() const override
Definition: item.h:4149
bool get_time(MYSQL_TIME *ltime) override
Definition: item.h:4160
longlong val_int() override
Definition: item.h:4152
double val_real() override
Definition: item.h:4151
Field * field
Definition: item.h:4141
String * val_str(String *str) override
Definition: item.h:4153
bool fix_fields(THD *thd, Item **ref) override
Definition: item.cc:2681
void make_field(Send_field *tmp_field) override
Definition: item.cc:2668
const char * db_name
Definition: item.h:4142
bool m_alias_of_expr
if this Item's name is alias of SELECT expression
Definition: item.h:3939
virtual bool alias_name_used() const
Definition: item.h:4130
const char * original_db_name() const
Definition: item.h:4049
void set_alias_of_expr()
Marks that this Item's name is alias of SELECT expression.
Definition: item.h:4104
bool is_strong_side_column_not_in_fd(uchar *arg) override
Definition: item.cc:10818
Item_ident(Name_resolution_context *context_arg, const char *db_name_arg, const char *table_name_arg, const char *field_name_arg)
Definition: item.h:3994
bool is_alias_of_expr() const
Definition: item.h:4102
Item_ident(THD *thd, Item_ident *item)
Constructor used by Item_field & Item_*_ref (see Item comment)
Definition: item.h:4026
Query_block * depended_from
Definition: item.h:3992
void fix_after_pullout(Query_block *parent_query_block, Query_block *removed_query_block) override
Fix after tables have been moved from one query_block level to the parent level, e....
Definition: item.cc:3153
const char * m_orig_field_name
Names the field in the source base table.
Definition: item.h:3938
Table_ref * cached_table
Definition: item.h:3991
void set_original_field_name(const char *name_arg)
Definition: item.h:4046
const char * m_orig_table_name
Names the original table that is the source of the field.
Definition: item.h:3928
const char * original_table_name() const
Definition: item.h:4050
void print(const THD *thd, String *str, enum_query_type query_type) const override
This method is used for to:
Definition: item.h:4058
Item_ident(const POS &pos, const char *db_name_arg, const char *table_name_arg, const char *field_name_arg)
Definition: item.h:4009
bool update_depended_from(uchar *) override
Definition: item.cc:803
const char * table_name
If column is from a non-aliased base table or view, name of base table or view.
Definition: item.h:3968
Name_resolution_context * context
For regularly resolved column references, 'context' points to a name resolution context object belong...
Definition: item.h:3954
friend bool insert_fields(THD *thd, Name_resolution_context *context, const char *db_name, const char *table_name, mem_root_deque< Item * >::iterator *it, bool any_privileges)
bool itemize(Parse_context *pc, Item **res) override
The same as contextualize() but with additional parameter.
Definition: item.cc:783
const char * db_name
Schema name of the base table or view the column is part of.
Definition: item.h:3960
const char * full_name() const override
Definition: item.cc:2937
bool aggregate_check_group(uchar *arg) override
Definition: item.cc:10813
bool is_column_not_in_fd(uchar *arg) override
Definition: item.cc:10826
bool walk(Item_processor processor, enum_walk walk, uchar *arg) override
Traverses a tree of Items in prefix and/or postfix order.
Definition: item.h:4106
const char * field_name
If column is aliased, the column alias name.
Definition: item.h:3982
void set_orignal_db_name(const char *name_arg)
Definition: item.h:4042
const char * original_field_name() const
Definition: item.h:4051
bool change_context_processor(uchar *arg) override
Definition: item.h:4096
void set_original_table_name(const char *name_arg)
Definition: item.h:4043
Item super
Definition: item.h:3899
const char * m_orig_db_name
The fields m_orig_db_name, m_orig_table_name and m_orig_field_name are maintained so that we can prov...
Definition: item.h:3918
bool aggregate_check_distinct(uchar *arg) override
Definition: item.cc:10765
Bool3 local_column(const Query_block *sl) const override
Tells if this is a column of a table whose qualifying query block is 'sl'.
Definition: item.cc:10732
Representation of IN subquery predicates of the form "left_expr IN (SELECT ...)".
Definition: item_subselect.h:526
Item_insert_value(Name_resolution_context *context_arg, Item *a)
Constructs an Item_insert_value that represents a derived table that wraps a table value constructor.
Definition: item.h:6495
bool check_function_as_value_generator(uchar *args) override
Check if this item is allowed for a virtual column or inside a default expression.
Definition: item.h:6523
bool eq(const Item *item, bool binary_cmp) const override
Definition: item.cc:9007
bool itemize(Parse_context *pc, Item **res) override
The same as contextualize() but with additional parameter.
Definition: item.h:6500
bool fix_fields(THD *, Item **) override
Resolve the name of a column reference.
Definition: item.cc:9012
Item_insert_value(const POS &pos, Item *a)
Constructs an Item_insert_value that represents a call to the deprecated VALUES function.
Definition: item.h:6486
uchar * m_rowbuffer_saved
Pointer to row buffer that was used to calculate field value offset.
Definition: item.h:6534
const bool m_is_values_function
This flag is true if the item represents a call to the deprecated VALUES function.
Definition: item.h:6540
type_conversion_status save_in_field_inner(Field *field_arg, bool no_conversions) override
Helper function which does all of the work for save_in_field(Field*, bool), except some error checkin...
Definition: item.h:6476
Item * arg
The argument for this function.
Definition: item.h:6532
bool walk(Item_processor processor, enum_walk walk, uchar *args) override
Traverses a tree of Items in prefix and/or postfix order.
Definition: item.h:6518
table_map used_tables() const override
Definition: item.h:6516
enum Type type() const override
Definition: item.h:6505
void bind_fields() override
Bind objects from the current execution context to field objects in item trees.
Definition: item.cc:9094
void print(const THD *thd, String *str, enum_query_type query_type) const override
This method is used for to:
Definition: item.cc:9122
void cleanup() override
Called for every Item after use (preparation and execution).
Definition: item.cc:9116
Item_int with value==0 and length==1.
Definition: item.h:5031
Item_int_0()
Definition: item.h:5033
Item_int_0(const POS &pos)
Definition: item.h:5034
Item * clone_item() const override
Definition: item.cc:6874
type_conversion_status save_in_field_inner(Field *field, bool no_conversions) override
Store this item's int-value in a field.
Definition: item.h:6180
const Item * real_item() const override
Definition: item.h:6194
Item_int_with_ref(enum_field_types field_type, longlong i, Item *ref_arg, bool unsigned_arg)
Definition: item.h:6186
Item * ref
Definition: item.h:6179
Item * real_item() override
Definition: item.h:6193
Item_result result_type() const override
Definition: item.h:4998
Item_int(const POS &pos, const LEX_STRING &num, int dummy_error=0)
Definition: item.h:4981
void print(const THD *thd, String *str, enum_query_type query_type) const override
This method is used for to:
Definition: item.cc:3261
bool get_time(MYSQL_TIME *ltime) override
Definition: item.h:5012
Item_int(longlong i, uint length=MY_INT64_NUM_DECIMAL_DIGITS)
Definition: item.h:4940
my_decimal * val_decimal(my_decimal *) override
Definition: item.cc:3249
bool check_function_as_value_generator(uchar *) override
Check if this item is allowed for a virtual column or inside a default expression.
Definition: item.h:5025
bool get_date(MYSQL_TIME *ltime, my_time_flags_t fuzzydate) override
Definition: item.h:5009
double val_real() override
Definition: item.h:5003
Item_int(const POS &pos, const char *str_arg, uint length)
Definition: item.h:4976
Item * clone_item() const override
Definition: item.h:5013
bool check_partition_func_processor(uchar *) override
Check if a partition function is allowed.
Definition: item.h:5024
Item_int(const POS &pos, const Name_string &name_arg, longlong i, uint length)
Definition: item.h:4965
longlong value
Definition: item.h:4927
Item_int(int32 i, uint length=MY_INT32_NUM_DECIMAL_DIGITS)
Definition: item.h:4928
type_conversion_status save_in_field_inner(Field *field, bool no_conversions) override
Store this item's int-value in a field.
Definition: item.cc:6837
void init(const char *str_arg, uint length)
Init an item from a string we KNOW points to a valid longlong.
Definition: item.cc:3240
uint decimal_precision() const override
Definition: item.h:5020
bool eq(const Item *, bool) const override
Definition: item.cc:6861
Item_int(const POS &pos, int32 i, uint length=MY_INT32_NUM_DECIMAL_DIGITS)
Definition: item.h:4934
Item_int(const Item_int *item_arg)
Definition: item.h:4952
Item_int(const char *str_arg, uint length)
Definition: item.h:4972
void set_max_size(uint length)
Definition: item.h:4987
String * val_str(String *) override
Definition: item.cc:3254
Item_num super
Definition: item.h:4924
enum Type type() const override
Definition: item.h:4997
Item_int(ulonglong i, uint length=MY_INT64_NUM_DECIMAL_DIGITS)
Definition: item.h:4945
Item_int(const Name_string &name_arg, longlong i, uint length)
Definition: item.h:4959
Item_num * neg() override
Definition: item.h:5016
longlong val_int() override
Definition: item.h:4999
A class that represents a constant JSON value.
Definition: item.h:7158
unique_ptr_destroy_only< Json_wrapper > m_value
Definition: item.h:7159
longlong val_int() override
Definition: item.cc:7294
Item_result result_type() const override
Definition: item.h:7168
bool get_date(MYSQL_TIME *ltime, my_time_flags_t) override
Definition: item.cc:7308
bool get_time(MYSQL_TIME *ltime) override
Definition: item.cc:7312
void print(const THD *, String *str, enum_query_type) const override
This method is used for to:
Definition: item.cc:7274
Item * clone_item() const override
Definition: item.cc:7316
Item_json(unique_ptr_destroy_only< Json_wrapper > value, const Item_name_string &name)
Definition: item.cc:7265
my_decimal * val_decimal(my_decimal *buf) override
Definition: item.cc:7304
bool val_json(Json_wrapper *result) override
Get a JSON value from an Item.
Definition: item.cc:7280
double val_real() override
Definition: item.cc:7292
String * val_str(String *str) override
Definition: item.cc:7296
enum Type type() const override
Definition: item.h:7165
Item * value_item
Definition: item.h:3827
enum Type type() const override
Definition: item.cc:1995
type_conversion_status save_in_field_inner(Field *field, bool no_conversions) override
Helper function which does all of the work for save_in_field(Field*, bool), except some error checkin...
Definition: item.h:3856
Item * name_item
Definition: item.h:3828
Item_result result_type() const override
Definition: item.h:3848
bool fix_fields(THD *, Item **) override
Definition: item.cc:2028
bool itemize(Parse_context *pc, Item **res) override
The same as contextualize() but with additional parameter.
Definition: item.cc:1947
bool is_null() override
The method allows to determine nullness of a complex expression without fully evaluating it,...
Definition: item.cc:1940
bool valid_args
Definition: item.h:3829
my_decimal * val_decimal(my_decimal *) override
Definition: item.cc:1923
bool cache_const_expr_analyzer(uchar **) override
Check if an item is a constant one and can be cached.
Definition: item.h:3850
longlong val_int() override
Definition: item.cc:1909
double val_real() override
Definition: item.cc:1902
Item_name_const(const POS &pos, Item *name_arg, Item *val)
Definition: item.cc:1942
Item super
Definition: item.h:3825
void print(const THD *thd, String *str, enum_query_type query_type) const override
This method is used for to:
Definition: item.cc:2055
bool get_time(MYSQL_TIME *ltime) override
Definition: item.cc:1935
bool get_date(MYSQL_TIME *ltime, my_time_flags_t fuzzydate) override
Definition: item.cc:1930
String * val_str(String *sp) override
Definition: item.cc:1916
Storage for Item names.
Definition: item.h:355
void set_autogenerated(bool is_autogenerated)
Set m_is_autogenerated flag to the given value.
Definition: item.h:366
bool is_autogenerated() const
Return the auto-generated flag.
Definition: item.h:372
void copy(const char *str_arg, size_t length_arg, const CHARSET_INFO *cs_arg, bool is_autogenerated_arg)
Copy name together with autogenerated flag.
Definition: item.cc:1249
Item_name_string()
Definition: item.h:360
Item_name_string(const Name_string name)
Definition: item.h:361
bool m_is_autogenerated
Definition: item.h:357
type_conversion_status save_in_field_inner(Field *field, bool no_conversions) override
Store null in field.
Definition: item.cc:6635
Item_null()
Definition: item.h:4538
bool send(Protocol *protocol, String *str) override
Pack data in buffer for sending.
Definition: item.cc:7261
void print(const THD *, String *str, enum_query_type query_type) const override
This method is used for to:
Definition: item.h:4568
bool get_date(MYSQL_TIME *, my_time_flags_t) override
Definition: item.h:4560
Item_basic_constant super
Definition: item.h:4522
Item_result result_type() const override
Definition: item.h:4564
Item_null(const POS &pos)
Definition: item.h:4542
bool check_partition_func_processor(uchar *) override
Check if a partition function is allowed.
Definition: item.h:4574
Item * clone_item() const override
Definition: item.h:4565
longlong val_time_temporal() override
Return time value of item in packed longlong format.
Definition: item.h:4556
longlong val_date_temporal() override
Return date value of item in packed longlong format.
Definition: item.h:4557
bool is_null() override
The method allows to determine nullness of a complex expression without fully evaluating it,...
Definition: item.h:4566
bool get_time(MYSQL_TIME *) override
Definition: item.h:4561
double val_real() override
Definition: item.cc:3582
longlong val_int() override
Definition: item.cc:3588
Item * safe_charset_converter(THD *thd, const CHARSET_INFO *tocs) override
Definition: item.cc:3609
Item_null(const Name_string &name_par)
Definition: item.h:4547
bool val_json(Json_wrapper *wr) override
Get a JSON value from an Item.
Definition: item.cc:3604
String * val_str(String *str) override
Definition: item.cc:3595
my_decimal * val_decimal(my_decimal *) override
Definition: item.cc:3602
enum Type type() const override
Definition: item.h:4552
bool eq(const Item *item, bool binary_cmp) const override
Definition: item.cc:3578
void init()
Definition: item.h:4524
virtual Item_num * neg()=0
Item * safe_charset_converter(THD *thd, const CHARSET_INFO *tocs) override
Definition: item.cc:1301
Item_basic_constant super
Definition: item.h:3885
bool check_partition_func_processor(uchar *) override
Check if a partition function is allowed.
Definition: item.h:3893
Item_num()
Definition: item.h:3888
Item_num(const POS &pos)
Definition: item.h:3889
bool fix_fields(THD *, Item **) override
Prepare referenced outer field then call usual Item_ref::fix_fields.
Definition: item.cc:8609
Item * replace_outer_ref(uchar *) override
Definition: item.cc:8671
Query_block * qualifying
Qualifying query of this outer ref (i.e.
Definition: item.h:6083
bool found_in_select_list
Definition: item.h:6093
Ref_Type ref_type() const override
Definition: item.h:6125
Item * outer_ref
Definition: item.h:6086
Item_outer_ref(Name_resolution_context *context_arg, Item_ident *ident_arg, Query_block *qualifying)
Definition: item.h:6094
Item_ref super
Definition: item.h:6076
Item_outer_ref(Name_resolution_context *context_arg, Item **item, const char *db_name_arg, const char *table_name_arg, const char *field_name_arg, bool alias_of_expr_arg, Query_block *qualifying)
Definition: item.h:6107
table_map not_null_tables() const override
Return table map of tables that can't be NULL tables (tables that are used in a context where if they...
Definition: item.h:6123
table_map used_tables() const override
Definition: item.h:6120
void fix_after_pullout(Query_block *parent_query_block, Query_block *removed_query_block) override
Fix after tables have been moved from one query_block level to the parent level, e....
Definition: item.cc:8660
Item_sum * in_sum_func
Definition: item.h:6088
Dynamic parameters used as placeholders ('?') inside prepared statements.
Definition: item.h:4579
void set_data_type_actual(enum_field_types data_type, bool unsigned_val)
For use with all field types, especially integer types.
Definition: item.h:4805
enum_field_types data_type_source() const
Definition: item.h:4809
void reset()
Resets parameter after execution.
Definition: item.cc:4067
void set_null()
Definition: item.cc:3831
bool set_value(THD *, sp_rcontext *, Item **it) override
This operation is intended to store some item value in Item_param to be used later.
Definition: item.cc:4771
const String * query_val_str(const THD *thd, String *str) const
Return Param item values in string format, for generating the dynamic query used in update/binary log...
Definition: item.cc:4345
bool m_json_as_scalar
If true, when retrieving JSON data, attempt to interpret a string value as a scalar JSON value,...
Definition: item.h:4728
bool is_type_inherited() const
Definition: item.h:4757
my_decimal * val_decimal(my_decimal *) override
Definition: item.cc:4217
double real
Definition: item.h:4620
void set_param_state(enum enum_item_param_state state)
Definition: item.h:4598
bool is_type_pinned() const
Definition: item.h:4763
Mem_root_array< Item_param * > m_clones
If a query expression's text QT or text of a condition (CT) that is pushed down to a derived table,...
Definition: item.h:4920
type_conversion_status save_in_field_inner(Field *field, bool no_conversions) override
Helper function which does all of the work for save_in_field(Field*, bool), except some error checkin...
Definition: item.cc:4080
String * val_str(String *) override
Definition: item.cc:4246
void sync_clones()
This should be called after any modification done to this Item, to propagate the said modification to...
Definition: item.cc:3803
void set_collation_actual(const CHARSET_INFO *coll)
Definition: item.h:4772
bool val_json(Json_wrapper *result) override
Get a JSON value from an Item.
Definition: item.cc:4282
void set_out_param_info(Send_field *info) override
Setter of Item_param::m_out_param_info.
Definition: item.cc:4835
bool set_from_user_var(THD *thd, const user_var_entry *entry)
Set parameter value from user variable value.
Definition: item.cc:4005
Item_result m_result_type
Result type of parameter.
Definition: item.h:4713
uint pos_in_query
Definition: item.h:4744
bool is_unsigned_actual() const
Definition: item.h:4766
union Item_param::@51 value
void set_data_type_source(enum_field_types data_type, bool unsigned_val)
Definition: item.h:4796
bool add_clone(Item_param *i)
Definition: item.h:4871
bool is_null() override
The method allows to determine nullness of a complex expression without fully evaluating it,...
Definition: item.h:4841
longlong integer
Definition: item.h:4619
void pin_data_type() override
Pin the currently resolved data type for this parameter.
Definition: item.h:4760
const CHARSET_INFO * m_collation_source
The character set and collation of the source parameter value.
Definition: item.h:4703
bool is_non_const_over_literals(uchar *) override
Definition: item.h:4865
String str_value_ptr
Definition: item.h:4616
MYSQL_TIME time
Definition: item.h:4621
const Send_field * get_out_param_info() const override
Getter of Item_param::m_out_param_info.
Definition: item.cc:4854
Item * safe_charset_converter(THD *thd, const CHARSET_INFO *tocs) override
Definition: item.cc:1388
enum_field_types data_type_actual() const
Definition: item.h:4811
my_decimal decimal_value
Definition: item.h:4617
Settable_routine_parameter * get_settable_routine_parameter() override
Definition: item.h:4874
Item_result result_type() const override
Definition: item.h:4750
enum_field_types m_data_type_actual
The actual data type of the parameter value provided by the user.
Definition: item.h:4694
void set_decimal(const char *str, ulong length)
Set decimal parameter value from string.
Definition: item.cc:3875
void make_field(Send_field *field) override
Fill meta-data information for the corresponding column in a result set.
Definition: item.cc:4866
bool is_valid_for_pushdown(uchar *arg) override
Check if all the columns present in this expression are from the derived table.
Definition: item.h:4893
enum_item_param_state
Definition: item.h:4587
@ STRING_VALUE
Definition: item.h:4592
@ DECIMAL_VALUE
Definition: item.h:4595
@ NO_VALUE
Definition: item.h:4588
@ REAL_VALUE
Definition: item.h:4591
@ TIME_VALUE
holds TIME, DATE, DATETIME
Definition: item.h:4593
@ LONG_DATA_VALUE
Definition: item.h:4594
@ INT_VALUE
Definition: item.h:4590
@ NULL_VALUE
Definition: item.h:4589
bool get_date(MYSQL_TIME *tm, my_time_flags_t fuzzydate) override
Definition: item.cc:4126
enum_field_types m_data_type_source
Parameter objects have a rather complex handling of data type, in order to consistently handle requir...
Definition: item.h:4673
bool itemize(Parse_context *pc, Item **item) override
The same as contextualize() but with additional parameter.
Definition: item.cc:3623
enum Type type() const override
Definition: item.h:4751
enum_item_param_state m_param_state
m_param_state is used to indicate that no parameter value is available with NO_VALUE,...
Definition: item.h:4722
bool check_function_as_value_generator(uchar *args) override
Check if this item is allowed for a virtual column or inside a default expression.
Definition: item.h:4887
void set_int(longlong i)
Definition: item.cc:3840
void print(const THD *thd, String *str, enum_query_type query_type) const override
This method is used for to:
Definition: item.cc:4710
bool convert_value()
Convert value according to the following rules:
Definition: item.cc:4407
void set_data_type_inherited() override
Set the currently resolved data type for this parameter as inherited.
Definition: item.h:4754
const CHARSET_INFO * collation_actual() const
Definition: item.h:4780
bool fix_fields(THD *thd, Item **ref) override
Definition: item.cc:3675
bool get_time(MYSQL_TIME *tm) override
Definition: item.cc:4108
Send_field * m_out_param_info
Definition: item.h:4899
void set_collation_source(const CHARSET_INFO *coll)
Definition: item.h:4768
const CHARSET_INFO * collation_source() const
Definition: item.h:4777
longlong val_int() override
Definition: item.cc:4183
bool set_str(const char *str, size_t length)
Definition: item.cc:3935
bool m_unsigned_actual
Used when actual value is integer to indicate whether value is unsigned.
Definition: item.h:4696
bool m_type_inherited
True if type of parameter is inherited from parent object (like a typecast).
Definition: item.h:4631
double val_real() override
Definition: item.cc:4144
void set_time(MYSQL_TIME *tm, enum_mysql_timestamp_type type)
Set parameter value from MYSQL_TIME value.
Definition: item.cc:3903
enum_field_types actual_data_type() const override
Retrieve actual data type for an item.
Definition: item.h:4813
enum enum_item_param_state param_state() const
Definition: item.h:4602
Item * clone_item() const override
Definition: item.cc:4682
const CHARSET_INFO * m_collation_actual
The character set and collation of the value stored in str_value, possibly after being converted from...
Definition: item.h:4711
void set_param_type_and_swap_value(Item_param *from)
Preserve the original parameter types and values when re-preparing a prepared statement.
Definition: item.cc:4744
bool m_type_pinned
True if type of parameter has been pinned, attempt to use an incompatible actual type will cause erro...
Definition: item.h:4642
bool eq(const Item *item, bool binary_cmp) const override
Definition: item.cc:4706
bool propagate_type(THD *thd, const Type_properties &type) override
Propagate data type specifications into parameters and user variables.
Definition: item.cc:3729
void set_double(double i)
Definition: item.cc:3856
void mark_json_as_scalar() override
For Items with data type JSON, mark that a string argument is treated as a scalar JSON value.
Definition: item.h:4604
bool set_longdata(const char *str, ulong length)
Definition: item.cc:3964
void copy_param_actual_type(Item_param *from)
Definition: item.cc:4293
Item_param(const POS &pos, MEM_ROOT *root, uint pos_in_query_arg)
Definition: item.cc:3616
table_map used_tables() const override
Definition: item.h:4838
void set_data_type_actual(enum_field_types data_type)
Definition: item.h:4801
Item super
Definition: item.h:4580
Item_partition_func_safe_string(const Name_string name, size_t length, const CHARSET_INFO *cs=nullptr)
Definition: item.h:5494
my_decimal * val_decimal(my_decimal *) override
Definition: item.cc:4926
bool val_bool() override
Definition: item.cc:4932
String * val_str(String *s) override
Definition: item.cc:4938
bool get_date(MYSQL_TIME *ltime, my_time_flags_t fuzzydate) override
Definition: item.cc:4944
Item_in_subselect * owner
Definition: item.h:6143
Item_ref_null_helper(Name_resolution_context *context_arg, Item_in_subselect *master, Item **item)
Definition: item.h:6146
longlong val_date_temporal() override
Return date value of item in packed longlong format.
Definition: item.cc:4920
longlong val_time_temporal() override
Return time value of item in packed longlong format.
Definition: item.cc:4914
longlong val_int() override
Definition: item.cc:4908
void print(const THD *thd, String *str, enum_query_type query_type) const override
This method is used for to:
Definition: item.cc:8530
Item_ref super
Definition: item.h:6140
double val_real() override
Definition: item.cc:4902
table_map used_tables() const override
Definition: item.h:6162
Item * compile(Item_analyzer analyzer, uchar **arg_p, Item_transformer transformer, uchar *arg_t) override
Compile an Item_ref object with a processor and a transformer callback function.
Definition: item.cc:8379
void update_used_tables() override
Updates used tables, not null tables information and accumulates properties up the item tree,...
Definition: item.h:5811
bool created_by_in2exists() const override
Whether this Item was created by the IN->EXISTS subquery transformation.
Definition: item.h:5921
bool is_null() override
The method allows to determine nullness of a complex expression without fully evaluating it,...
Definition: item.cc:8466
bool collect_item_field_or_ref_processor(uchar *arg) override
Definition: item.cc:8541
bool is_result_field() const override
Definition: item.h:5832
void set_properties()
Definition: item.cc:8313
table_map used_tables() const override
Definition: item.h:5803
Item_field * field_for_view_update() override
Definition: item.h:5875
bool eq(const Item *item, bool binary_cmp) const override
Definition: item.h:5772
longlong val_time_temporal() override
Return time value of item in packed longlong format.
Definition: item.cc:8429
Item_ref(Name_resolution_context *context_arg, const char *db_name_arg, const char *table_name_arg, const char *field_name_arg)
Definition: item.h:5730
type_conversion_status save_in_field_inner(Field *field, bool no_conversions) override
Helper function which does all of the work for save_in_field(Field*, bool), except some error checkin...
Definition: item.cc:8486
Item_ref(THD *thd, Item_ref *item)
Definition: item.h:5758
Item ** addr(uint i) override
Definition: item.h:5889
void traverse_cond(Cond_traverser traverser, void *arg, traverse_order order) override
Definition: item.h:5855
Item * get_tmp_table_item(THD *thd) override
If an Item is materialized in a temporary table, a different Item may have to be used in the part of ...
Definition: item.cc:8510
bool clean_up_after_removal(uchar *arg) override
Clean up after removing the item from the item tree.
Definition: item.cc:7991
bool fix_fields(THD *, Item **) override
Resolve the name of a reference to a column reference.
Definition: item.cc:8074
bool check_function_as_value_generator(uchar *args) override
Check if this item is allowed for a virtual column or inside a default expression.
Definition: item.h:5927
bool is_valid_for_pushdown(uchar *arg) override
Check if all the columns present in this expression are from the derived table.
Definition: item.h:5936
Item_result result_type() const override
Definition: item.h:5794
void make_field(Send_field *field) override
Definition: item.cc:8494
void bring_value() override
Definition: item.h:5902
uint cols() const override
Definition: item.h:5881
Item ** ref_pointer() const
Definition: item.h:5767
bool val_json(Json_wrapper *result) override
Get a JSON value from an Item.
Definition: item.cc:8459
bool val_bool() override
Definition: item.cc:8445
bool is_outer_field() const override
Definition: item.h:5915
bool null_inside() override
Definition: item.h:5898
void set_result_field(Field *field) override
Definition: item.h:5831
bool get_time(MYSQL_TIME *ltime) override
Definition: item.h:5906
void print(const THD *thd, String *str, enum_query_type query_type) const override
This method is used for to:
Definition: item.cc:8396
Item * real_item() override
Definition: item.h:5834
longlong val_date_temporal() override
Return date value of item in packed longlong format.
Definition: item.cc:8437
Field * get_tmp_table_field() override
If this Item is being materialized into a temporary table, returns the field that is being materializ...
Definition: item.h:5798
Item_result cast_to_int_type() const override
Definition: item.h:5933
Ref_Type
Definition: item.h:5717
@ VIEW_REF
Definition: item.h:5717
@ REF
Definition: item.h:5717
@ AGGREGATE_REF
Definition: item.h:5717
@ OUTER_REF
Definition: item.h:5717
String * val_str(String *tmp) override
Definition: item.cc:8452
Field * result_field
Definition: item.h:5723
bool explain_subquery_checker(uchar **) override
Definition: item.h:5862
void link_referenced_item()
Definition: item.h:5769
bool check_column_in_window_functions(uchar *arg) override
Check if all the columns present in this expression are present in PARTITION clause of window functio...
Definition: item.h:5939
bool is_non_const_over_literals(uchar *) override
Definition: item.h:5926
void cleanup() override
Called for every Item after use (preparation and execution).
Definition: item.cc:8333
const Item * real_item() const override
Definition: item.h:5839
Item_ref(const POS &pos, const char *db_name_arg, const char *table_name_arg, const char *field_name_arg)
Definition: item.h:5733
Field * get_result_field() const override
Definition: item.h:5833
TYPELIB * get_typelib() const override
Get the typelib information for an item of type set or enum.
Definition: item.h:5796
bool walk(Item_processor processor, enum_walk walk, uchar *arg) override
Traverses a tree of Items in prefix and/or postfix order.
Definition: item.h:5845
enum Type type() const override
Definition: item.h:5771
bool send(Protocol *prot, String *tmp) override
This is only called from items that is not of type item_field.
Definition: item.cc:8411
bool pusheddown_depended_from
Definition: item.h:5720
bool check_column_in_group_by(uchar *arg) override
Check if all the columns present in this expression are present in GROUP BY clause of the derived tab...
Definition: item.h:5942
void fix_after_pullout(Query_block *parent_query_block, Query_block *removed_query_block) override
Fix after tables have been moved from one query_block level to the parent level, e....
Definition: item.cc:8677
virtual Ref_Type ref_type() const
Definition: item.h:5878
bool basic_const_item() const override
Returns true if this is a simple constant item like an integer, not a constant expression.
Definition: item.h:5913
Item * transform(Item_transformer, uchar *arg) override
Transform an Item_ref object with a transformer callback function.
Definition: item.cc:8349
bool repoint_const_outer_ref(uchar *arg) override
The aim here is to find a real_item() which is of type Item_field.
Definition: item.cc:10834
table_map not_null_tables() const override
Return table map of tables that can't be NULL tables (tables that are used in a context where if they...
Definition: item.h:5821
Item * element_index(uint i) override
Definition: item.h:5885
bool check_cols(uint c) override
Definition: item.h:5893
Item ** m_ref_item
Indirect pointer to the referenced item.
Definition: item.h:5727
longlong val_int() override
Definition: item.cc:8422
Item * ref_item() const
Definition: item.h:5764
my_decimal * val_decimal(my_decimal *) override
Definition: item.cc:8480
bool get_date(MYSQL_TIME *ltime, my_time_flags_t fuzzydate) override
Definition: item.cc:8473
double val_real() override
Definition: item.cc:8415
Item with result field.
Definition: item.h:5633
Item_result_field(const POS &pos)
Definition: item.h:5638
Field * tmp_table_field(TABLE *) override
Definition: item.h:5644
Field * result_field
Definition: item.h:5635
int raise_decimal_overflow()
Definition: item.h:5704
longlong raise_integer_overflow()
Definition: item.h:5699
Field * get_tmp_table_field() override
If this Item is being materialized into a temporary table, returns the field that is being materializ...
Definition: item.h:5643
Item_result_field(THD *thd, const Item_result_field *item)
Definition: item.h:5641
virtual bool resolve_type(THD *thd)=0
Resolve type-related information for this item, such as result field type, maximum size,...
longlong llrint_with_overflow_check(double realval)
Definition: item.h:5684
bool mark_field_in_map(uchar *arg) override
Mark underlying field in read or write map of a table.
Definition: item.h:5676
bool check_function_as_value_generator(uchar *) override
Check if this item is allowed for a virtual column or inside a default expression.
Definition: item.h:5675
void cleanup() override
Called for every Item after use (preparation and execution).
Definition: item.cc:10673
void raise_numeric_overflow(const char *type_name)
Definition: item.cc:10679
Item_result_field()=default
double raise_float_overflow()
Definition: item.h:5694
bool is_result_field() const override
Definition: item.h:5659
table_map used_tables() const override
Definition: item.h:5645
void set_result_field(Field *field) override
Definition: item.h:5658
virtual const char * func_name() const =0
Field * get_result_field() const override
Definition: item.h:5660
Item_return_int(const char *name_arg, uint length, enum_field_types field_type_arg, longlong value_arg=0)
Definition: item.h:5537
Definition: item_subselect.h:279
bool is_valid_for_pushdown(uchar *arg) override
Check if all the columns present in this expression are from the derived table.
Definition: item.h:3687
Item_sp_variable(const Name_string sp_var_name)
Definition: item.cc:1706
Name_string m_name
Definition: item.h:3654
bool get_date(MYSQL_TIME *ltime, my_time_flags_t fuzzydate) override
Definition: item.cc:1790
bool val_json(Json_wrapper *result) override
Get a JSON value from an Item.
Definition: item.cc:1782
String * val_str(String *sp) override
Definition: item.cc:1741
bool fix_fields(THD *thd, Item **) override
Definition: item.cc:1709
my_decimal * val_decimal(my_decimal *decimal_value) override
Definition: item.cc:1774
void make_field(Send_field *field) override
Definition: item.h:3701
type_conversion_status save_in_field_inner(Field *field, bool no_conversions) override
Helper function which does all of the work for save_in_field(Field*, bool), except some error checkin...
Definition: item.h:3707
double val_real() override
Definition: item.cc:1725
longlong val_int() override
Definition: item.cc:1733
table_map used_tables() const override
Definition: item.h:3668
bool get_time(MYSQL_TIME *ltime) override
Definition: item.cc:1796
bool send(Protocol *protocol, String *str) override
This is only called from items that is not of type item_field.
Definition: item.h:3682
sp_head * m_sp
Definition: item.h:3662
bool is_null() override
The method allows to determine nullness of a complex expression without fully evaluating it,...
Definition: item.cc:1802
bool limit_clause_param
Definition: item.h:3731
Item_result result_type() const override
Definition: item.h:3769
bool set_value(THD *thd, sp_rcontext *ctx, Item **it) override
Definition: item.cc:1861
uint len_in_query
Definition: item.h:3750
bool is_splocal() const override
Definition: item.h:3756
uint get_var_idx() const
Definition: item.h:3766
bool val_json(Json_wrapper *result) override
Get a JSON value from an Item.
Definition: item.cc:1842
uint m_var_idx
Definition: item.h:3719
Settable_routine_parameter * get_settable_routine_parameter() override
Definition: item.h:3776
enum Type type() const override
Definition: item.h:3768
uint pos_in_query
Definition: item.h:3742
Item * this_item() override
Definition: item.cc:1824
Item_splocal(const Name_string sp_var_name, uint sp_var_idx, enum_field_types sp_var_type, uint pos_in_q=0, uint len_in_q=0)
Definition: item.cc:1808
Item ** this_item_addr(THD *thd, Item **) override
Definition: item.cc:1836
void print(const THD *thd, String *str, enum_query_type query_type) const override
This method is used for to:
Definition: item.cc:1849
Type m_type
Definition: item.h:3721
Item_result m_result_type
Definition: item.h:3722
void print(const THD *, String *str, enum_query_type) const override
Definition: item.h:5478
Item_static_string_func(const Name_string &name_par, const char *str, size_t length, const CHARSET_INFO *cs, Derivation dv=DERIVATION_COERCIBLE)
Definition: item.h:5464
bool check_partition_func_processor(uchar *) override
Check if a partition function is allowed.
Definition: item.h:5482
bool check_function_as_value_generator(uchar *args) override
Check if this item is allowed for a virtual column or inside a default expression.
Definition: item.h:5483
Item * safe_charset_converter(THD *thd, const CHARSET_INFO *tocs) override
Definition: item.cc:1416
const Name_string func_name
Definition: item.h:5461
Item_static_string_func(const POS &pos, const Name_string &name_par, const char *str, size_t length, const CHARSET_INFO *cs, Derivation dv=DERIVATION_COERCIBLE)
Definition: item.h:5469
Item_string(const POS &pos, const char *str, size_t length, const CHARSET_INFO *cs, Derivation dv=DERIVATION_COERCIBLE, uint repertoire=MY_REPERTOIRE_UNICODE30)
Definition: item.h:5304
String * val_str(String *) override
Definition: item.h:5385
Item_string(const char *str, size_t length, const CHARSET_INFO *cs, Derivation dv=DERIVATION_COERCIBLE, uint repertoire=MY_REPERTOIRE_UNICODE30)
Definition: item.h:5298
void set_cs_specified(bool cs_specified)
Set the value of m_cs_specified attribute.
Definition: item.h:5444
bool eq(const Item *item, bool binary_cmp) const override
Definition: item.cc:1441
bool is_cs_specified() const
Return true if character-set-introducer was explicitly specified in the original query for this item ...
Definition: item.h:5432
Item_string(const CHARSET_INFO *cs, Derivation dv=DERIVATION_COERCIBLE)
Definition: item.h:5312
bool get_time(MYSQL_TIME *ltime) override
Definition: item.h:5393
Item_string(const POS &pos)
Definition: item.h:5266
void append(char *str, size_t length)
Definition: item.h:5404
void init(const char *str, size_t length, const CHARSET_INFO *cs, Derivation dv, uint repertoire)
Definition: item.h:5270
bool check_partition_func_processor(uchar *) override
Check if a partition function is allowed.
Definition: item.h:5411
Item * safe_charset_converter(THD *thd, const CHARSET_INFO *tocs) override
Definition: item.cc:1350
Item_string(const POS &pos, const Name_string name_par, const LEX_CSTRING &literal, const CHARSET_INFO *cs, Derivation dv=DERIVATION_COERCIBLE, uint repertoire=MY_REPERTOIRE_UNICODE30)
Definition: item.h:5351
void mark_result_as_const()
Definition: item.h:5448
type_conversion_status save_in_field_inner(Field *field, bool no_conversions) override
Helper function which does all of the work for save_in_field(Field*, bool), except some error checkin...
Definition: item.cc:6787
Item_result result_type() const override
Definition: item.h:5396
Item * clone_item() const override
Definition: item.h:5398
bool m_cs_specified
Definition: item.h:5451
void print(const THD *thd, String *str, enum_query_type query_type) const override
Definition: item.cc:3447
Item_string(const Name_string name_par, const char *str, size_t length, const CHARSET_INFO *cs, Derivation dv=DERIVATION_COERCIBLE, uint repertoire=MY_REPERTOIRE_UNICODE30)
Definition: item.h:5322
Item * charset_converter(THD *thd, const CHARSET_INFO *tocs, bool lossless)
Convert a string item into the requested character set.
Definition: item.cc:1363
Item_basic_constant super
Definition: item.h:5263
void set_str_with_copy(const char *str_arg, uint length_arg)
Definition: item.h:5371
double val_real() override
Definition: item.cc:3518
Item_string(const POS &pos, const Name_string name_par, const char *str, size_t length, const CHARSET_INFO *cs, Derivation dv=DERIVATION_COERCIBLE, uint repertoire=MY_REPERTOIRE_UNICODE30)
Definition: item.h:5335
void set_repertoire_from_value()
Definition: item.h:5378
longlong val_int() override
Definition: item.cc:3567
enum Type type() const override
Definition: item.h:5382
my_decimal * val_decimal(my_decimal *) override
Definition: item.cc:3574
bool get_date(MYSQL_TIME *ltime, my_time_flags_t fuzzydate) override
Definition: item.h:5390
Definition: item_subselect.h:80
Class Item_sum is the base class used for special expressions that SQL calls 'set functions'.
Definition: item_sum.h:399
Item_temporal_with_ref(enum_field_types field_type_arg, uint8 decimals_arg, longlong i, Item *ref_arg, bool unsigned_arg)
Definition: item.h:6202
void print(const THD *thd, String *str, enum_query_type query_type) const override
This method is used for to:
Definition: item.cc:6905
bool get_time(MYSQL_TIME *) override
Definition: item.h:6213
bool get_date(MYSQL_TIME *, my_time_flags_t) override
Definition: item.h:6209
type_conversion_status save_in_field_inner(Field *field, bool no_conversions) override
Store this item's int-value in a field.
Definition: item.cc:6843
bool get_time(MYSQL_TIME *) override
Definition: item.h:5077
bool get_date(MYSQL_TIME *, my_time_flags_t) override
Definition: item.h:5073
Item_temporal(enum_field_types field_type_arg, const Name_string &name_arg, longlong i, uint length)
Definition: item.h:5059
longlong val_time_temporal() override
Return time value of item in packed longlong format.
Definition: item.h:5071
Item * clone_item() const override
Definition: item.h:5068
Item_temporal(enum_field_types field_type_arg, longlong i)
Definition: item.h:5055
longlong val_date_temporal() override
Return date value of item in packed longlong format.
Definition: item.h:5072
longlong val_time_temporal() override
Return time value of item in packed longlong format.
Definition: item.h:6264
longlong val_date_temporal() override
Return date value of item in packed longlong format.
Definition: item.h:6265
Item_time_with_ref(uint8 decimals_arg, longlong i, Item *ref_arg)
Constructor for Item_time_with_ref.
Definition: item.h:6260
Item * clone_item() const override
Definition: item.cc:6885
Utility mixin class to be able to walk() only parts of item trees.
Definition: item.h:738
bool is_stopped(const Item *i)
Definition: item.h:755
const Item * stopped_at_item
Definition: item.h:776
void stop_at(const Item *i)
Stops walking children of this item.
Definition: item.h:746
Item_tree_walker(const Item_tree_walker &)=delete
Item_tree_walker()
Definition: item.h:740
Item_tree_walker & operator=(const Item_tree_walker &)=delete
~Item_tree_walker()
Definition: item.h:741
Represents NEW/OLD version of field of row which is changed/read in trigger.
Definition: item.h:6555
Item_trigger_field(Name_resolution_context *context_arg, enum_trigger_variable_type trigger_var_type_arg, const char *field_name_arg, ulong priv, const bool ro)
Definition: item.h:6571
SQL_I_List< Item_trigger_field > * next_trig_field_list
Definition: item.h:6565
void print(const THD *thd, String *str, enum_query_type query_type) const override
This method is used for to:
Definition: item.cc:9267
void setup_field(Table_trigger_field_support *table_triggers, GRANT_INFO *table_grant_info)
Find index of Field object which will be appropriate for item representing field of row being changed...
Definition: item.cc:9151
void set_required_privilege(ulong privilege) override
Set required privileges for accessing the parameter.
Definition: item.h:6604
uint field_idx
Definition: item.h:6567
GRANT_INFO * table_grants
Definition: item.h:6646
bool check_column_privileges(uchar *arg) override
Check privileges of base table column.
Definition: item.cc:9256
Item * get_tmp_table_item(THD *thd) override
If an Item is materialized in a temporary table, a different Item may have to be used in the part of ...
Definition: item.h:6602
bool set_value(THD *thd, sp_rcontext *ctx, Item **it) override
Definition: item.cc:9172
bool set_value(THD *thd, Item **it)
Definition: item.h:6627
Settable_routine_parameter * get_settable_routine_parameter() override
Definition: item.h:6623
Item_trigger_field * next_trg_field
Definition: item.h:6560
void cleanup() override
Called for every Item after use (preparation and execution).
Definition: item.cc:9274
Item_trigger_field(const POS &pos, enum_trigger_variable_type trigger_var_type_arg, const char *field_name_arg, ulong priv, const bool ro)
Definition: item.h:6581
enum Type type() const override
Definition: item.h:6592
Item * copy_or_same(THD *) override
Definition: item.h:6601
Table_trigger_field_support * triggers
Definition: item.h:6569
Field * get_tmp_table_field() override
If this Item is being materialized into a temporary table, returns the field that is being materializ...
Definition: item.h:6600
enum_trigger_variable_type trigger_var_type
Definition: item.h:6558
ulong want_privilege
Definition: item.h:6645
table_map used_tables() const override
Definition: item.h:6599
bool fix_fields(THD *, Item **) override
Resolve the name of a column reference.
Definition: item.cc:9199
bool read_only
Definition: item.h:6651
void bind_fields() override
Bind objects from the current execution context to field objects in item trees.
Definition: item.cc:9235
bool check_function_as_value_generator(uchar *args) override
Check if this item is allowed for a virtual column or inside a default expression.
Definition: item.h:6608
bool eq(const Item *item, bool binary_cmp) const override
Definition: item.cc:9163
bool is_valid_for_pushdown(uchar *args) override
Check if all the columns present in this expression are from the derived table.
Definition: item.h:6615
Item_type_holder stores an aggregation of name, type and type specification of UNIONS and derived tab...
Definition: item.h:7087
Item_aggregate_type super
Definition: item.h:7088
enum Type type() const override
Definition: item.h:7096
Item_type_holder(THD *thd, Item *item)
Definition: item.h:7094
String * val_str(String *) override
Definition: item.cc:10556
longlong val_int() override
Definition: item.cc:10546
bool get_date(MYSQL_TIME *, my_time_flags_t) override
Definition: item.cc:10561
bool get_time(MYSQL_TIME *) override
Definition: item.cc:10566
double val_real() override
Definition: item.cc:10541
my_decimal * val_decimal(my_decimal *) override
Definition: item.cc:10551
uint decimal_precision() const override
Definition: item.h:5114
Item * clone_item() const override
Definition: item.h:5108
Item_num * neg() override
Definition: item.cc:6916
Item_uint(const Name_string &name_arg, longlong i, uint length)
Definition: item.h:5098
void print(const THD *thd, String *str, enum_query_type query_type) const override
This method is used for to:
Definition: item.cc:3290
Item_uint(const POS &pos, const char *str_arg, uint length)
Definition: item.h:5092
type_conversion_status save_in_field_inner(Field *field, bool no_conversions) override
Store this item's int-value in a field.
Definition: item.cc:6793
double val_real() override
Definition: item.h:5102
String * val_str(String *) override
Definition: item.cc:3283
Item_uint(const char *str_arg, uint length)
Definition: item.h:5089
Item_uint(ulonglong i)
Definition: item.h:5097
Reference item that encapsulates both the type and the contained items of a single column of a VALUES...
Definition: item.h:7121
Item_values_column(THD *thd, Item *ref)
Definition: item.cc:10579
void set_value(Item *new_value)
Definition: item.h:7152
Item * m_value_ref
Definition: item.h:7125
table_map used_tables() const override
Definition: item.h:7153
Item_aggregate_type super
Definition: item.h:7122
longlong val_int() override
Definition: item.cc:10600
type_conversion_status save_in_field_inner(Field *field, bool no_conversions) override
Helper function which does all of the work for save_in_field(Field*, bool), except some error checkin...
Definition: item.cc:10571
my_decimal * val_decimal(my_decimal *) override
Definition: item.cc:10607
bool is_null() override
The method allows to determine nullness of a complex expression without fully evaluating it,...
Definition: item.cc:10639
bool val_json(Json_wrapper *result) override
Get a JSON value from an Item.
Definition: item.cc:10623
bool get_date(MYSQL_TIME *ltime, my_time_flags_t fuzzydate) override
Definition: item.cc:10655
enum Type type() const override
Definition: item.h:7151
bool eq(const Item *item, bool binary_cmp) const override
Definition: item.cc:10585
String * val_str(String *tmp) override
Definition: item.cc:10632
void add_used_tables(Item *value)
Definition: item.cc:10669
bool get_time(MYSQL_TIME *ltime) override
Definition: item.cc:10663
double val_real() override
Definition: item.cc:10593
bool val_bool() override
Definition: item.cc:10615
table_map m_aggregated_used_tables
Definition: item.h:7132
Class for fields from derived tables and views.
Definition: item.h:5953
Item_view_ref(Name_resolution_context *context_arg, Item **item, const char *db_name_arg, const char *alias_name_arg, const char *table_name_arg, const char *field_name_arg, Table_ref *tl)
Definition: item.h:5957
Ref_Type ref_type() const override
Definition: item.h:6023
Table_ref * first_inner_table
If this column belongs to a view that is an inner table of an outer join, then this field points to t...
Definition: item.h:6063
bool mark_field_in_map(uchar *arg) override
Mark underlying field in read or write map of a table.
Definition: item.h:6026
Item * get_tmp_table_item(THD *thd) override
If an Item is materialized in a temporary table, a different Item may have to be used in the part of ...
Definition: item.h:6017
bool is_null() override
The method allows to determine nullness of a complex expression without fully evaluating it,...
Definition: item.cc:8759
bool collect_item_field_or_view_ref_processor(uchar *arg) override
Collects fields and view references that have the qualifying table in the specified query block.
Definition: item.cc:8778
bool has_null_row() const
Definition: item.h:6055
type_conversion_status save_in_field_inner(Field *field, bool no_conversions) override
Helper function which does all of the work for save_in_field(Field*, bool), except some error checkin...
Definition: item.cc:8770
double val_real() override
Definition: item.cc:8719
bool send(Protocol *prot, String *tmp) override
This is only called from items that is not of type item_field.
Definition: item.cc:8765
bool fix_fields(THD *, Item **) override
Prepare referenced field then call usual Item_ref::fix_fields .
Definition: item.cc:8561
bool val_bool() override
Definition: item.cc:8743
Item * replace_item_view_ref(uchar *arg) override
Definition: item.cc:8802
longlong val_int() override
Definition: item.cc:8711
Item_ref super
Definition: item.h:5954
bool eq(const Item *item, bool) const override
Compare two view column references for equality.
Definition: item.cc:8700
bool subst_argument_checker(uchar **) override
Definition: item.h:5983
Table_ref * get_first_inner_table() const
Definition: item.h:6047
bool val_json(Json_wrapper *wr) override
Get a JSON value from an Item.
Definition: item.cc:8751
table_map used_tables() const override
Takes into account whether an Item in a derived table / view is part of an inner table of an outer jo...
Definition: item.h:6004
String * val_str(String *str) override
Definition: item.cc:8735
bool check_column_privileges(uchar *arg) override
Check privileges of view column.
Definition: item.cc:1185
Item * replace_view_refs_with_clone(uchar *arg) override
Assuming this expression is part of a condition that would be pushed to a materialized derived table,...
Definition: item.cc:8832
my_decimal * val_decimal(my_decimal *dec) override
Definition: item.cc:8727
Base class that is used to represent any kind of expression in a relational query.
Definition: item.h:851
void increment_ref_count()
Increment reference count.
Definition: item.h:3219
longlong val_temporal_by_field_type()
Return date or time value of item in packed longlong format, depending on item field type.
Definition: item.h:1747
virtual double val_real()=0
void set_data_type_bit()
Set the data type of the Item to be bit.
Definition: item.h:1620
uint32 max_char_length() const
Definition: item.h:3172
String * make_empty_result()
Sets the result value of the function an empty string, using the current character set.
Definition: item.h:863
virtual const CHARSET_INFO * compare_collation() const
Definition: item.h:2430
virtual float get_filtering_effect(THD *thd, table_map filter_for_table, table_map read_tables, const MY_BITMAP *fields_to_ignore, double rows_in_table)
Calculate the filter contribution that is relevant for table 'filter_for_table' for this item.
Definition: item.h:1955
virtual Field::geometry_type get_geometry_type() const
Definition: item.h:3142
String str_value
str_values's main purpose is to cache the value in save_in_field
Definition: item.h:3364
bool skip_itemize(Item **res)
Helper function to skip itemize() for grammar-allocated items.
Definition: item.h:1126
void set_nullable(bool nullable)
Definition: item.h:3467
virtual bool itemize(Parse_context *pc, Item **res)
The same as contextualize() but with additional parameter.
Definition: item.cc:631
virtual bool change_context_processor(uchar *)
Definition: item.h:2640
void set_data_type_date()
Set all type properties for Item of DATE type.
Definition: item.h:1546
virtual bool check_column_in_group_by(uchar *arg)
Check if all the columns present in this expression are present in GROUP BY clause of the derived tab...
Definition: item.h:2942
DTCollation collation
Character set and collation properties assigned for this Item.
Definition: item.h:3371
bool get_time_from_decimal(MYSQL_TIME *ltime)
Convert val_decimal() to time in MYSQL_TIME.
Definition: item.cc:1559
ulonglong val_uint()
Definition: item.h:1778
bool has_subquery() const
Definition: item.h:3250
virtual bool subst_argument_checker(uchar **arg)
Definition: item.h:2875
bool contextualize(Parse_context *) override
Definition: item.h:1112
void set_data_type_bool()
Definition: item.h:1403
longlong val_int_from_decimal()
Definition: item.cc:455
bool has_stored_program() const
Definition: item.h:3253
String * val_string_from_int(String *str)
Definition: item.cc:284
int error_int()
Get the value to return from val_int() in case of errors.
Definition: item.h:2037
virtual bool subq_opt_away_processor(uchar *)
Definition: item.h:3350
void set_data_type(enum_field_types data_type)
Set the data type of the current Item.
Definition: item.h:1392
bool error_date()
Get the value to return from get_date() in case of errors.
Definition: item.h:2061
virtual bool collect_item_field_or_view_ref_processor(uchar *)
Collects fields and view references that have the qualifying table in the specified query block.
Definition: item.h:2610
bool has_aggregation() const
Definition: item.h:3258
virtual bool find_field_processor(uchar *)
Is this an Item_field which references the given Field argument?
Definition: item.h:2646
longlong val_int_from_datetime()
Definition: item.cc:486
void aggregate_char_length(Item **args, uint nitems)
Set the maximum number of characters required by any of the items in args.
Definition: item.cc:7601
void set_data_type_string(ulonglong max_char_length_arg)
Set the Item to be variable length string.
Definition: item.h:1474
my_decimal * val_decimal_from_string(my_decimal *decimal_value)
Definition: item.cc:343
virtual void split_sum_func(THD *, Ref_item_array, mem_root_deque< Item * > *)
Definition: item.h:2348
bool is_nullable() const
Definition: item.h:3466
void set_data_type_geometry()
Set the data type of the Item to be GEOMETRY.
Definition: item.h:1592
double error_real()
Get the value to return from val_real() in case of errors.
Definition: item.h:2049
my_decimal * error_decimal(my_decimal *decimal_value)
Get the value to return from val_decimal() in case of errors.
Definition: item.h:2086
void save_in_field_no_error_check(Field *field, bool no_conversions)
A slightly faster value of save_in_field() that returns no error value (you will need to check thd->i...
Definition: item.h:1320
virtual enum_field_types actual_data_type() const
Retrieve actual data type for an item.
Definition: item.h:1368
bool get_time_from_string(MYSQL_TIME *ltime)
Convert val_str() to time in MYSQL_TIME.
Definition: item.cc:1540
static const CHARSET_INFO * default_charset()
Definition: item.cc:1652
void init_make_field(Send_field *tmp_field, enum enum_field_types type)
Definition: item.cc:6250
virtual bool propagate_type(THD *thd, const Type_properties &type)
Propagate data type specifications into parameters and user variables.
Definition: item.h:1207
String * val_string_from_date(String *str)
Definition: item.cc:309
bool is_non_deterministic() const
Definition: item.h:2297
static constexpr uint8 PROP_ROLLUP_EXPR
Set if the item or one or more of the underlying items contains a ROLLUP expression.
Definition: item.h:3526
void set_subquery()
Set the "has subquery" property.
Definition: item.h:3243
void fix_char_length(uint32 max_char_length_arg)
Definition: item.h:3193
void operator=(Item &)=delete
bool has_rollup_expr() const
Definition: item.h:3276
virtual bool is_bool_func() const
Definition: item.h:2401
void mark_subqueries_optimized_away()
Definition: item.h:3294
String * null_return_str()
Gets the value to return from val_str() when returning a NULL value.
Definition: item.h:2110
double val_real_from_decimal()
Definition: item.cc:437
virtual bool disable_constant_propagation(uchar *)
Definition: item.h:2884
virtual longlong val_time_temporal_at_utc()
Definition: item.h:2174
virtual bool get_time(MYSQL_TIME *ltime)=0
void aggregate_temporal_properties(Item **item, uint nitems)
Set fractional seconds precision for temporal functions.
Definition: item.cc:7674
Item()
Item constructor for general use.
Definition: item.cc:132
uint8 m_data_type
Data type assigned to Item.
Definition: item.h:3453
void set_data_type_float()
Set the data type of the Item to be single precision floating point.
Definition: item.h:1444
void reset_aggregation()
Reset the "has aggregation" property.
Definition: item.h:3264
virtual Item * this_item()
Definition: item.h:2980
bool is_temporal_with_date() const
Definition: item.h:3102
virtual bool strip_db_table_name_processor(uchar *)
Definition: item.h:3345
static Item_result type_to_result(enum_field_types type)
Definition: item.h:968
virtual table_map used_tables() const
Definition: item.h:2197
String * val_string_from_datetime(String *str)
Definition: item.cc:299
bool get_time_from_real(MYSQL_TIME *ltime)
Convert val_real() to time in MYSQL_TIME.
Definition: item.cc:1550
virtual bool equality_substitution_analyzer(uchar **)
Definition: item.h:2823
virtual bool find_item_in_field_list_processor(uchar *)
Definition: item.h:2639
virtual longlong val_date_temporal_at_utc()
Definition: item.h:2172
virtual bool created_by_in2exists() const
Whether this Item was created by the IN->EXISTS subquery transformation.
Definition: item.h:3292
static enum_field_types string_field_type(uint32 max_bytes)
Determine correct string field type, based on string length.
Definition: item.h:1645
bool error_json()
Get the value to return from val_json() in case of errors.
Definition: item.h:1974
virtual void cleanup()
Called for every Item after use (preparation and execution).
Definition: item.h:1168
virtual Item * real_item()
Definition: item.h:2414
virtual Item * equality_substitution_transformer(uchar *)
Definition: item.h:2825
void set_stored_program()
Set the "has stored program" property.
Definition: item.h:3246
virtual bool supports_partial_update(const Field_json *field) const
Check if this expression can be used for partial update of a given JSON column.
Definition: item.h:3546
bool get_date_from_decimal(MYSQL_TIME *ltime, my_time_flags_t flags)
Convert val_decimal() to date in MYSQL_TIME.
Definition: item.cc:1472
virtual enum_field_types default_data_type() const
Get the default data (output) type for the specific item.
Definition: item.h:1381
void set_data_type_string(uint32 max_l, const CHARSET_INFO *cs)
Set the Item to be variable length string.
Definition: item.h:1492
virtual bool explain_subquery_checker(uchar **)
Definition: item.h:2879
bool get_date_from_time(MYSQL_TIME *ltime)
Convert get_time() from time to date in MYSQL_TIME.
Definition: item.cc:1490
bool get_time_from_datetime(MYSQL_TIME *ltime)
Convert datetime to time.
Definition: item.cc:1585
void set_data_type_blob(uint32 max_l)
Set the Item to be of BLOB type.
Definition: item.h:1539
uint m_ref_count
Number of references to this item.
Definition: item.h:3449
virtual Field * make_string_field(TABLE *table) const
Create a field to hold a string value from an item.
Definition: item.cc:6378
virtual my_decimal * val_decimal(my_decimal *decimal_buffer)=0
void add_accum_properties(const Item *item)
Add more accumulated properties to an Item.
Definition: item.h:3238
virtual bool check_valid_arguments_processor(uchar *)
Definition: item.h:2891
longlong val_int_from_date()
Definition: item.cc:478
virtual Settable_routine_parameter * get_settable_routine_parameter()
Definition: item.h:3099
void split_sum_func2(THD *thd, Ref_item_array ref_item_array, mem_root_deque< Item * > *fields, Item **ref, bool skip_registered)
Definition: item.cc:2205
virtual Item * equal_fields_propagator(uchar *)
Definition: item.h:2882
bool error_bool()
Get the value to return from val_bool() in case of errors.
Definition: item.h:2025
virtual type_conversion_status save_in_field_inner(Field *field, bool no_conversions)
Helper function which does all of the work for save_in_field(Field*, bool), except some error checkin...
Definition: item.cc:6672
virtual bool remove_column_from_bitmap(uchar *arg)
Visitor interface for removing all column expressions (Item_field) in this expression tree from a bit...
Definition: item.h:2636
virtual bool update_depended_from(uchar *)
Definition: item.h:2807
void set_data_type_double()
Set the data type of the Item to be double precision floating point.
Definition: item.h:1436
my_decimal * val_decimal_from_int(my_decimal *decimal_value)
Definition: item.cc:336
void set_data_type_year()
Set the data type of the Item to be YEAR.
Definition: item.h:1611
virtual uint decimal_precision() const
Definition: item.cc:651
Item_result cmp_context
Comparison context.
Definition: item.h:3431
void aggregate_type(Bounds_checked_array< Item * > items)
Aggregates data types from array of items into current item.
Definition: item.cc:568
virtual void allow_array_cast()
A helper function to ensure proper usage of CAST(.
Definition: item.h:3559
virtual Item * truth_transformer(THD *thd, Bool_test test)
Informs an item that it is wrapped in a truth test, in case it wants to transforms itself to implemen...
Definition: item.h:3007
Item(const Item &)=delete
virtual Item * replace_equal_field(uchar *)
Definition: item.h:2885
virtual Item * element_index(uint)
Definition: item.h:2991
virtual bool check_function_as_value_generator(uchar *args)
Check if this item is allowed for a virtual column or inside a default expression.
Definition: item.cc:790
virtual void traverse_cond(Cond_traverser traverser, void *arg, traverse_order)
Definition: item.h:2550
virtual Item * safe_charset_converter(THD *thd, const CHARSET_INFO *tocs)
Definition: item.cc:1284
uint float_length(uint decimals_par) const
Definition: item.h:2233
Field * tmp_table_field_from_field_type(TABLE *table, bool fixed_length) const
Create a field based on field_type of argument.
Definition: item.cc:6414
bool get_time_from_date(MYSQL_TIME *ltime)
Convert date to time.
Definition: item.cc:1577
virtual Item * copy_andor_structure(THD *)
Definition: item.h:2408
virtual bool val_json(Json_wrapper *result)
Get a JSON value from an Item.
Definition: item.h:1927
virtual longlong val_int()=0
virtual Item_field * field_for_view_update()
Definition: item.h:3000
static constexpr uint8 PROP_GROUPING_FUNC
Set if the item or one or more of the underlying items is a GROUPING function.
Definition: item.h:3531
virtual void print(const THD *, String *str, enum_query_type) const
This method is used for to:
Definition: item.h:2321
enum_field_types data_type() const
Retrieve the derived data type of the Item.
Definition: item.h:1360
static constexpr uint8 PROP_SUBQUERY
Set of properties that are calculated by accumulation from underlying items.
Definition: item.h:3518
Item_name_string item_name
Name from query.
Definition: item.h:3372
void print_item_w_name(const THD *thd, String *, enum_query_type query_type) const
Definition: item.cc:709
virtual String * val_str_ascii(String *str)
Definition: item.cc:244
virtual Item * get_tmp_table_item(THD *thd)
If an Item is materialized in a temporary table, a different Item may have to be used in the part of ...
Definition: item.h:2427
virtual bool fix_fields(THD *, Item **)
Definition: item.cc:4893
virtual bool check_column_privileges(uchar *thd)
Check privileges.
Definition: item.h:2705
bool fixed
True if item has been resolved.
Definition: item.h:3455
static bool bit_func_returns_binary(const Item *a, const Item *b)
Definition: item_func.cc:3219
enum_const_item_cache
How to cache constant JSON data.
Definition: item.h:925
@ CACHE_NONE
Don't cache.
Definition: item.h:927
@ CACHE_JSON_VALUE
Source data is a JSON string, parse and cache result.
Definition: item.h:929
@ CACHE_JSON_ATOM
Source data is SQL scalar, convert and cache result.
Definition: item.h:931
virtual Item_result result_type() const
Definition: item.h:1330
virtual bool is_expensive()
Definition: item.h:3159
bool const_item() const
Returns true if item is constant, regardless of query evaluation state.
Definition: item.h:2258
longlong val_int_from_time()
Definition: item.cc:464
bool null_value
True if item is null.
Definition: item.h:3492
virtual longlong val_time_temporal()
Return time value of item in packed longlong format.
Definition: item.cc:380
Type
Definition: item.h:887
@ XPATH_NODESET
Definition: item.h:913
@ XPATH_NODESET_CMP
Definition: item.h:914
@ VARBIN_ITEM
Definition: item.h:896
@ VIEW_FIXER_ITEM
Definition: item.h:915
@ ROW_ITEM
Definition: item.h:907
@ INVALID_ITEM
Definition: item.h:888
@ INSERT_VALUE_ITEM
Definition: item.h:905
@ CACHE_ITEM
Definition: item.h:908
@ REAL_ITEM
Definition: item.h:894
@ TRIGGER_FIELD_ITEM
Definition: item.h:911
@ SUM_FUNC_ITEM
Definition: item.h:891
@ FIELD_VARIANCE_ITEM
Definition: item.h:904
@ SUBSELECT_ITEM
Definition: item.h:906
@ REF_ITEM
Definition: item.h:902
@ FIELD_AVG_ITEM
Definition: item.h:898
@ PROC_ITEM
Definition: item.h:900
@ FIELD_ITEM
Definition: item.h:889
@ INT_ITEM
Definition: item.h:893
@ FUNC_ITEM
Definition: item.h:890
@ COND_ITEM
Definition: item.h:901
@ PARAM_ITEM
Definition: item.h:910
@ DECIMAL_ITEM
Definition: item.h:912
@ FIELD_STD_ITEM
Definition: item.h:903
@ FIELD_BIT_ITEM
Definition: item.h:916
@ VALUES_COLUMN_ITEM
Definition: item.h:917
@ NULL_ITEM
Definition: item.h:895
@ DEFAULT_VALUE_ITEM
Definition: item.h:899
@ STRING_ITEM
Definition: item.h:892
@ TYPE_HOLDER
Definition: item.h:909
@ METADATA_COPY_ITEM
Definition: item.h:897
virtual bool collect_scalar_subqueries(uchar *)
Definition: item.h:2804
virtual Field * tmp_table_field(TABLE *)
Definition: item.h:2191
virtual bool check_cols(uint c)
Definition: item.cc:1211
const bool is_parser_item
true if allocated directly by parser
Definition: item.h:3451
bool is_temporal_with_time() const
Definition: item.h:3108
virtual bool visitor_processor(uchar *arg)
A processor to handle the select lex visitor framework.
Definition: item.cc:759
Parse_tree_node super
Definition: item.h:852
virtual Item * replace_item_view_ref(uchar *)
Definition: item.h:3069
bool cleanup_processor(uchar *)
cleanup() item if it is resolved ('fixed').
Definition: item.h:2565
void set_data_type_datetime(uint8 fsp)
Set all properties for Item of DATETIME type.
Definition: item.h:1570
bool aggregate_string_properties(const char *name, Item **item, uint nitems)
Aggregate string properties (character set, collation and maximum length) for string function.
Definition: item.cc:7729
virtual Item * replace_with_derived_expr_ref(uchar *arg)
Assuming this expression is part of a condition that would be pushed to the HAVING clause of a materi...
Definition: item.h:2963
virtual const CHARSET_INFO * charset_for_protocol()
Definition: item.h:2436
void set_aggregation()
Set the "has aggregation" property.
Definition: item.h:3261
bool get_time_from_non_temporal(MYSQL_TIME *ltime)
Convert a non-temporal type to time.
Definition: item.cc:1615
virtual uint time_precision()
TIME precision of the item: 0..6.
Definition: item.cc:676
void delete_self()
Delete this item.
Definition: item.h:3090
bool m_in_check_constraint_exec_ctx
True if item is a top most element in the expression being evaluated for a check constraint.
Definition: item.h:3508
virtual uint datetime_precision()
DATETIME precision of the item: 0..6.
Definition: item.cc:691
virtual bool send(Protocol *protocol, String *str)
This is only called from items that is not of type item_field.
Definition: item.cc:7328
bool has_compatible_context(Item *item) const
Check whether this and the given item has compatible comparison context.
Definition: item.h:3123
virtual Item * replace_view_refs_with_clone(uchar *arg)
Assuming this expression is part of a condition that would be pushed to a materialized derived table,...
Definition: item.h:2973
virtual void pin_data_type()
Pin the data type for the item.
Definition: item.h:1357
virtual bool cache_const_expr_analyzer(uchar **cache_item)
Check if an item is a constant one and can be cached.
Definition: item.cc:7503
virtual void apply_is_true()
Apply the IS TRUE truth property, meaning that an UNKNOWN result and a FALSE result are treated the s...
Definition: item.h:2392
void set_rollup_expr()
Set the property: this item (tree) contains a reference to a ROLLUP expr.
Definition: item.h:3279
Item * next_free
Intrusive list pointer for free list.
Definition: item.h:3360
virtual bool collect_item_field_or_ref_processor(uchar *)
Definition: item.h:2571
virtual bool val_bool()
Definition: item.cc:216
String * error_str()
Get the value to return from val_str() in case of errors.
Definition: item.h:2100
static enum_field_types type_for_variable(enum_field_types src_type)
Provide data type for a user or system variable, based on the type of the item that is assigned to th...
Definition: item.h:1025
uint8 m_accum_properties
Definition: item.h:3532
type_conversion_status save_str_value_in_field(Field *field, String *result)
Definition: item.cc:548
virtual bool check_column_in_window_functions(uchar *arg)
Check if all the columns present in this expression are present in PARTITION clause of window functio...
Definition: item.h:2934
bool get_date_from_numeric(MYSQL_TIME *ltime, my_time_flags_t fuzzydate)
Convert a numeric type to date.
Definition: item.cc:1500
virtual Item * update_value_transformer(uchar *)
Definition: item.h:3011
virtual Item * replace_outer_ref(uchar *)
Definition: item.h:3071
virtual bool reset_wf_state(uchar *arg)
Reset execution state for such window function types as determined by arg.
Definition: item.h:2681
void set_accum_properties(const Item *item)
Set accumulated properties for an Item.
Definition: item.h:3233
virtual bool repoint_const_outer_ref(uchar *arg)
This function applies only to Item_field objects referred to by an Item_ref object that has been mark...
Definition: item.h:3342
virtual bool cast_incompatible_args(uchar *)
Wrap incompatible arguments in CAST nodes to the expected data types.
Definition: item.h:2648
virtual longlong val_date_temporal()
Return date value of item in packed longlong format.
Definition: item.cc:386
bool visit_all_analyzer(uchar **)
Definition: item.h:2819
virtual table_map not_null_tables() const
Return table map of tables that can't be NULL tables (tables that are used in a context where if they...
Definition: item.h:2210
virtual Item_result numeric_context_result_type() const
Result type when an item appear in a numeric context.
Definition: item.h:1335
my_decimal * val_decimal_from_date(my_decimal *decimal_value)
Definition: item.cc:362
longlong val_temporal_with_round(enum_field_types type, uint8 dec)
Get date or time value in packed longlong format.
Definition: item.cc:398
virtual bool is_expensive_processor(uchar *)
Definition: item.h:855
bool can_be_substituted_for_gc(bool array=false) const
Check if this item is of a type that is eligible for GC substitution.
Definition: item.cc:7582
virtual Item * compile(Item_analyzer analyzer, uchar **arg_p, Item_transformer transformer, uchar *arg_t)
Perform a generic "compilation" of the Item tree, ie transform the Item tree by adding zero or more I...
Definition: item.h:2544
type_conversion_status save_in_field_no_warnings(Field *field, bool no_conversions)
Save the item into a field but do not emit any warnings.
Definition: item.cc:1664
bool error_time()
Get the value to return from get_time() in case of errors.
Definition: item.h:2073
virtual TYPELIB * get_typelib() const
Get the typelib information for an item of type set or enum.
Definition: item.h:1655
bool has_wf() const
Definition: item.h:3267
my_decimal * val_decimal_from_real(my_decimal *decimal_value)
Definition: item.cc:328
virtual bool collect_subqueries(uchar *)
Definition: item.h:2806
virtual void fix_after_pullout(Query_block *parent_query_block, Query_block *removed_query_block)
Fix after tables have been moved from one query_block level to the parent level, e....
Definition: item.h:1187
void set_data_type_char(uint32 max_l)
Set the Item to be fixed length string.
Definition: item.h:1515
void aggregate_decimal_properties(Item **item, uint nitems)
Set precision and decimals of function when this depends on arguments' values for these quantities.
Definition: item.cc:7656
virtual bool null_inside()
Definition: item.h:2995
void set_data_type_json()
Set the data type of the Item to be JSON.
Definition: item.h:1601
bool unsigned_flag
Definition: item.h:3493
virtual bool aggregate_check_group(uchar *)
Definition: item.h:2755
bool propagate_type(THD *thd, enum_field_types def=MYSQL_TYPE_VARCHAR, bool pin=false, bool inherit=false)
Wrapper for easier calling of propagate_type(const Type_properties &).
Definition: item.h:1221
virtual bool get_date(MYSQL_TIME *ltime, my_time_flags_t fuzzydate)=0
bool is_blob_field() const
Check if an item either is a blob field, or will be represented as a BLOB field if a field is created...
Definition: item.cc:1692
bool is_outer_reference() const
Definition: item.h:2304
virtual bool is_null()
The method allows to determine nullness of a complex expression without fully evaluating it,...
Definition: item.h:2373
bool const_for_execution() const
Returns true if item is constant during one query execution.
Definition: item.h:2270
longlong val_int_from_string()
Definition: item.cc:500
item_marker
< Values for member 'marker'
Definition: item.h:3391
@ MARKER_FUNC_DEP_NOT_NULL
When analyzing functional dependencies for only_full_group_by (says whether a nullable column can be ...
Definition: item.h:3403
@ MARKER_BIT
When creating an internal temporary table: says how to store BIT fields.
Definition: item.h:3400
@ MARKER_TRAVERSAL
Used during traversal to avoid deleting an item twice.
Definition: item.h:3411
@ MARKER_DISTINCT_GROUP
When we change DISTINCT to GROUP BY: used for book-keeping of fields.
Definition: item.h:3406
@ MARKER_IMPLICIT_NE_ZERO
When contextualization or itemization adds an implicit comparison '0<>' (see make_condition()),...
Definition: item.h:3395
@ MARKER_NONE
Definition: item.h:3391
@ MARKER_COND_DERIVED_TABLE
When pushing conditions down to derived table: it says a condition contains only derived table's colu...
Definition: item.h:3409
@ MARKER_CONST_PROPAG
When doing constant propagation (e.g.
Definition: item.h:3398
@ MARKER_ICP_COND_USES_INDEX_ONLY
When pushing index conditions: it says whether a condition uses only indexed columns.
Definition: item.h:3414
virtual bool is_valid_for_pushdown(uchar *arg)
Check if all the columns present in this expression are from the derived table.
Definition: item.h:2923
virtual Item * copy_or_same(THD *)
Definition: item.h:2407
Item_name_string orig_name
Original item name (if it was renamed)
Definition: item.h:3373
virtual bool collect_grouped_aggregates(uchar *)
Definition: item.h:2805
bool eq_by_collation(Item *item, bool binary_cmp, const CHARSET_INFO *cs)
Definition: item.cc:6350
virtual bool clean_up_after_removal(uchar *arg)
Clean up after removing the item from the item tree.
Definition: item.cc:7570
virtual cond_result eq_cmp_result() const
Definition: item.h:2232
uint32 max_char_length(const CHARSET_INFO *cs) const
Definition: item.h:3186
virtual Item * explain_subquery_propagator(uchar *)
Definition: item.h:2880
virtual void update_used_tables()
Updates used tables, not null tables information and accumulates properties up the item tree,...
Definition: item.h:2346
virtual bool aggregate_check_distinct(uchar *)
Definition: item.h:2753
bool evaluate(THD *thd, String *str)
Evaluate item, possibly using the supplied buffer.
Definition: item.cc:7427
bool get_date_from_string(MYSQL_TIME *ltime, my_time_flags_t flags)
Convert val_str() to date in MYSQL_TIME.
Definition: item.cc:1453
void set_wf()
Set the "has window function" property.
Definition: item.h:3270
virtual bool returns_array() const
Whether the item returns array of its data type.
Definition: item.h:3554
virtual void make_field(Send_field *field)
Definition: item.cc:6271
virtual Field * get_tmp_table_field()
If this Item is being materialized into a temporary table, returns the field that is being materializ...
Definition: item.h:2186
virtual bool is_outer_field() const
Definition: item.h:3201
void set_grouping_func()
Set the property: this item is a call to GROUPING.
Definition: item.h:3289
virtual void set_result_field(Field *)
Definition: item.h:2398
bool is_abandoned() const
Definition: item.h:3347
cond_result
Definition: item.h:920
@ COND_UNDEF
Definition: item.h:920
@ COND_TRUE
Definition: item.h:920
@ COND_FALSE
Definition: item.h:920
@ COND_OK
Definition: item.h:920
virtual bool walk(Item_processor processor, enum_walk walk, uchar *arg)
Traverses a tree of Items in prefix and/or postfix order.
Definition: item.h:2461
type_conversion_status save_time_in_field(Field *field)
Definition: item.cc:509
item_marker marker
This member has several successive meanings, depending on the phase we're in (.
Definition: item.h:3430
Item_result temporal_with_date_as_number_result_type() const
Similar to result_type() but makes DATE, DATETIME, TIMESTAMP pretend to be numbers rather than string...
Definition: item.h:1342
traverse_order
Definition: item.h:922
@ POSTFIX
Definition: item.h:922
@ PREFIX
Definition: item.h:922
virtual bool is_strong_side_column_not_in_fd(uchar *)
Definition: item.h:2757
virtual bool intro_version(uchar *)
Definition: item.h:2562
bool get_time_from_numeric(MYSQL_TIME *ltime)
Convert a numeric type to time.
Definition: item.cc:1592
bool m_abandoned
true if item has been fully de-referenced
Definition: item.h:3450
virtual bool inform_item_in_cond_of_tab(uchar *)
Definition: item.h:2708
static constexpr uint8 PROP_STORED_PROGRAM
Definition: item.h:3519
virtual const Item * real_item() const
Definition: item.h:2415
bool is_temporal() const
Definition: item.h:3111
bool is_temporal_with_date_and_time() const
Definition: item.h:3105
virtual const char * full_name() const
Definition: item.h:2192
auto walk_helper_thunk(uchar *arg)
Definition: item.h:2468
void set_data_type_null()
Definition: item.h:1396
uint8 decimals
Number of decimals in result when evaluating this item.
Definition: item.h:3464
virtual Item ** addr(uint)
Definition: item.h:2992
virtual Item * clone_item() const
Definition: item.h:2231
void set_data_type_string(uint32 max_l)
Set the Item to be variable length string.
Definition: item.h:1457
virtual void set_can_use_prefix_key()
Definition: item.h:1196
void set_data_type_timestamp(uint8 fsp)
Set all properties for Item of TIMESTAMP type.
Definition: item.h:1582
bool get_date_from_non_temporal(MYSQL_TIME *ltime, my_time_flags_t fuzzydate)
Convert a non-temporal type to date.
Definition: item.cc:1521
void set_data_type_string(uint32 max_l, const DTCollation &coll)
Set the Item to be variable length string.
Definition: item.h:1504
virtual std::optional< ContainedSubquery > get_contained_subquery(const Query_block *outer_query_block)
If this item represents a IN/ALL/ANY/comparison_operator subquery, return that (along with data on ho...
Definition: item.h:1260
uint decrement_ref_count()
Decrement reference count.
Definition: item.h:3225
virtual bool find_item_processor(uchar *arg)
Definition: item.h:2641
void aggregate_num_type(Item_result result_type, Item **item, uint nitems)
This function is used to resolve type for numeric result type of CASE, COALESCE, IF and LEAD/LAG.
Definition: item.cc:7774
virtual void no_rows_in_result()
Definition: item.h:2406
virtual bool add_field_to_set_processor(uchar *)
Item::walk function.
Definition: item.h:2618
virtual bool add_field_to_cond_set_processor(uchar *)
Item::walk function.
Definition: item.h:2627
virtual Item * replace_with_derived_expr(uchar *arg)
Assuming this expression is part of a condition that would be pushed to the WHERE clause of a materia...
Definition: item.h:2952
uint reference_count() const
Definition: item.h:3216
static enum_field_types result_to_type(Item_result result)
Definition: item.h:948
virtual Item * replace_scalar_subquery(uchar *)
When walking the item tree seeing an Item_singlerow_subselect matching a target, replace it with a su...
Definition: item.h:3060
type_conversion_status save_in_field(Field *field, bool no_conversions)
Save a temporal value in packed longlong format into a Field.
Definition: item.cc:6640
virtual bool check_gcol_depend_default_processor(uchar *args)
Check if a generated expression depends on DEFAULT function with specific column name as argument.
Definition: item.h:2914
virtual bool is_splocal() const
Definition: item.h:3093
Bool_test
< Modifier for result transformation
Definition: item.h:935
@ BOOL_NOT_FALSE
Definition: item.h:939
@ BOOL_IS_UNKNOWN
Definition: item.h:937
@ BOOL_NOT_TRUE
Definition: item.h:938
@ BOOL_IS_TRUE
Definition: item.h:935
@ BOOL_ALWAYS_FALSE
Definition: item.h:944
@ BOOL_NOT_UNKNOWN
Definition: item.h:940
@ BOOL_ALWAYS_TRUE
Definition: item.h:943
@ BOOL_IS_FALSE
Definition: item.h:936
@ BOOL_IDENTITY
Definition: item.h:941
@ BOOL_NEGATED
Definition: item.h:942
String * check_well_formed_result(String *str, bool send_error, bool truncate)
Verifies that the input string is well-formed according to its character set.
Definition: item.cc:6294
virtual bool replace_field_processor(uchar *)
A processor that replaces any Fields with a Create_field_wrapper.
Definition: item.h:3314
virtual bool update_aggr_refs(uchar *)
A walker processor overridden by Item_aggregate_ref, q.v.
Definition: item.h:3083
virtual void notify_removal()
Called when an item has been removed, can be used to notify external objects about the removal,...
Definition: item.h:1174
bool may_evaluate_const(const THD *thd) const
Return true if this is a const item that may be evaluated in the current phase of statement processin...
Definition: item.cc:1203
virtual Item * replace_aggregate(uchar *)
Definition: item.h:3070
virtual String * val_str(String *str)=0
bool m_nullable
True if this item may hold the NULL value(if null_value may be set to true).
Definition: item.h:3489
virtual Item * replace_item_field(uchar *)
Transform processor used by Query_block::transform_grouped_to_derived to replace fields which used to...
Definition: item.h:3068
virtual bool mark_field_in_map(uchar *arg)
Mark underlying field in read or write map of a table.
Definition: item.h:2654
virtual bool basic_const_item() const
Returns true if this is a simple constant item like an integer, not a constant expression.
Definition: item.h:2219
bool hidden
If the item is in a SELECT list (Query_block::fields) and hidden is true, the item wasn't actually in...
Definition: item.h:3503
bool get_date_from_int(MYSQL_TIME *ltime, my_time_flags_t flags)
Convert val_int() to date in MYSQL_TIME.
Definition: item.cc:1481
virtual bool get_timeval(my_timeval *tm, int *warnings)
Get timestamp in "struct timeval" format.
Definition: item.cc:1638
bool m_is_window_function
True if item represents window func.
Definition: item.h:3494
bool may_eval_const_item(const THD *thd) const
Definition: item.cc:207
void set_data_type_from_item(const Item *item)
Set data type properties of the item from the properties of another item.
Definition: item.h:1632
static bool mark_field_in_map(Mark_field *mark_field, Field *field)
Helper function for mark_field_in_map(uchar *arg).
Definition: item.h:2663
Item * cache_const_expr_transformer(uchar *item)
Cache item if needed.
Definition: item.cc:7804
String * val_string_from_time(String *str)
Definition: item.cc:319
virtual Item ** this_item_addr(THD *, Item **addr_arg)
Definition: item.h:2987
virtual bool is_result_field() const
Definition: item.h:2399
virtual const Item * this_item() const
Definition: item.h:2981
virtual Item * transform(Item_transformer transformer, uchar *arg)
Perform a generic transformation of the Item tree, by adding zero or more additional Item objects to ...
Definition: item.cc:779
virtual enum_monotonicity_info get_monotonicity_info() const
Definition: item.h:1667
virtual bool collect_item_field_processor(uchar *)
Definition: item.h:2570
virtual bool has_aggregate_ref_in_group_by(uchar *)
Check if an aggregate is referenced from within the GROUP BY clause of the query block in which it is...
Definition: item.h:2817
uint32 max_length
Maximum length of result of evaluating this item, in number of bytes.
Definition: item.h:3389
bool get_date_from_real(MYSQL_TIME *ltime, my_time_flags_t flags)
Convert val_real() to date in MYSQL_TIME.
Definition: item.cc:1463
void set_data_type_longlong()
Set the data type of the Item to be longlong.
Definition: item.h:1414
static constexpr uint8 PROP_WINDOW_FUNCTION
Definition: item.h:3521
auto analyze_helper_thunk(uchar **arg)
See CompileItem.
Definition: item.h:2474
double val_real_from_string()
Definition: item.cc:446
bool update_null_value()
Make sure the null_value member has a correct value.
Definition: item.cc:7412
virtual bool gc_subst_analyzer(uchar **)
Analyzer function for GC substitution.
Definition: item.h:3302
void rename(char *new_name)
rename item (used for views, cleanup() return original name).
Definition: item.cc:770
virtual bool is_column_not_in_fd(uchar *)
Definition: item.h:2759
virtual longlong val_int_endpoint(bool left_endp, bool *incl_endp)
Definition: item.h:1705
virtual enum Type type() const =0
virtual uint cols() const
Definition: item.h:2990
virtual Item * gc_subst_transformer(uchar *)
Transformer function for GC substitution.
Definition: item.h:3306
virtual bool eq(const Item *, bool binary_cmp) const
Definition: item.cc:1275
int8 is_expensive_cache
Cache of result of is_expensive()
Definition: item.h:3452
virtual Bool3 local_column(const Query_block *) const
Definition: item.h:2760
virtual void bring_value()
Definition: item.h:2997
void set_data_type_time(uint8 fsp)
Set all type properties for Item of TIME type.
Definition: item.h:1558
void set_data_type_decimal(uint8 precision, uint8 scale)
Set the data type of the Item to be decimal.
Definition: item.h:1427
void quick_fix_field()
Definition: item.h:1195
virtual bool used_tables_for_level(uchar *arg)
Return used table information for the specified query block (level).
Definition: item.h:2697
my_decimal * val_decimal_from_time(my_decimal *decimal_value)
Definition: item.cc:371
virtual Item_result cast_to_int_type() const
Definition: item.h:1657
void print_for_order(const THD *thd, String *str, enum_query_type query_type, bool used_alias) const
Prints the item when it's part of ORDER BY and GROUP BY.
Definition: item.cc:739
type_conversion_status save_date_in_field(Field *field)
Definition: item.cc:516
String * val_string_from_real(String *str)
Definition: item.cc:261
virtual bool is_non_const_over_literals(uchar *)
Definition: item.h:2642
virtual void mark_json_as_scalar()
For Items with data type JSON, mark that a string argument is treated as a scalar JSON value.
Definition: item.h:1249
void set_data_type_char(uint32 max_l, const CHARSET_INFO *cs)
Set the Item to be fixed length string.
Definition: item.h:1529
bool has_grouping_func() const
Definition: item.h:3284
virtual void save_org_in_field(Field *field)
Definition: item.h:1325
static constexpr uint8 PROP_AGGREGATION
Definition: item.h:3520
virtual Field * get_result_field() const
Definition: item.h:2400
longlong int_sort_key()
Produces a key suitable for filesort.
Definition: item.h:1761
bool get_time_from_int(MYSQL_TIME *ltime)
Convert val_int() to time in MYSQL_TIME.
Definition: item.cc:1568
void aggregate_float_properties(Item **item, uint nitems)
Set max_length and decimals of function if function is floating point and result length/precision dep...
Definition: item.cc:7624
int decimal_int_part() const
Definition: item.h:2238
virtual void set_data_type_inherited()
Set data type for item as inherited.
Definition: item.h:1351
String * val_string_from_decimal(String *str)
Definition: item.cc:291
virtual bool check_partition_func_processor(uchar *)
Check if a partition function is allowed.
Definition: item.h:2874
virtual void bind_fields()
Bind objects from the current execution context to field objects in item trees.
Definition: item.h:2714
Abstraction for accessing JSON values irrespective of whether they are (started out as) binary JSON v...
Definition: json_dom.h:1161
Definition: sql_list.h:434
Class used as argument to Item::walk() together with mark_field_in_map()
Definition: item.h:251
Mark_field(TABLE *table, enum_mark_columns mark)
Definition: item.h:253
Mark_field(enum_mark_columns mark)
Definition: item.h:254
TABLE *const table
If == NULL, update map of any table.
Definition: item.h:260
const enum_mark_columns mark
How to mark the map.
Definition: item.h:262
A typesafe replacement for DYNAMIC_ARRAY.
Definition: mem_root_array.h:426
Table_ref * save_next_local
Definition: item.h:524
void save_state(Name_resolution_context *context, Table_ref *table_list)
Definition: item.h:528
Table_ref * save_next_name_resolution_table
Definition: item.h:522
void update_next_local(Table_ref *table_list)
Definition: item.h:545
Table_ref * get_first_name_resolution_table()
Definition: item.h:549
Table_ref * save_table_list
Definition: item.h:520
bool save_resolve_in_select_list
Definition: item.h:523
Table_ref * save_first_name_resolution_table
Definition: item.h:521
void restore_state(Name_resolution_context *context, Table_ref *table_list)
Definition: item.h:537
Storage for name strings.
Definition: item.h:287
void copy(const char *str)
Definition: item.h:324
Name_string(const char *str, size_t length)
Definition: item.h:303
void copy(const LEX_STRING lex)
Definition: item.h:327
void set_or_copy(const char *str, size_t length, bool is_null_terminated)
Definition: item.h:289
bool eq_safe(const Name_string name) const
Definition: item.h:342
Name_string(const LEX_STRING str, bool is_null_terminated)
Definition: item.h:310
bool eq_safe(const char *str) const
Definition: item.h:337
Name_string(const LEX_STRING str)
Definition: item.h:304
Name_string()
Definition: item.h:297
bool eq(const char *str) const
Compare name to another name in C string, case insensitively.
Definition: item.h:333
void copy(const char *str, size_t length)
Variants for copy(), for various argument combinations.
Definition: item.h:321
Name_string(const LEX_CSTRING str)
Definition: item.h:305
Name_string(const char *str, size_t length, bool is_null_terminated)
Definition: item.h:306
void copy(const char *str, size_t length, const CHARSET_INFO *cs)
Allocate space using sql_strmake() or sql_strmake_with_convert().
Definition: item.cc:1221
bool eq(const Name_string name) const
Compare name to another name in Name_string, case insensitively.
Definition: item.h:341
void copy(const Name_string str)
Definition: item.h:329
void copy(const LEX_STRING *lex)
Definition: item.h:328
Base class for parse tree nodes (excluding the Parse_tree_root hierarchy)
Definition: parse_tree_node_base.h:139
Definition: protocol.h:33
This class represents a query block, aka a query specification, which is a query consisting of a SELE...
Definition: sql_lex.h:1156
Simple intrusive linked list.
Definition: sql_list.h:46
A set of THD members describing the current authenticated user.
Definition: sql_security_ctx.h:54
bool field
Definition: field.h:4637
virtual void set_out_param_info(Send_field *info)
Definition: item.h:696
virtual ~Settable_routine_parameter()=default
Settable_routine_parameter()=default
virtual void set_required_privilege(ulong privilege)
Set required privileges for accessing the parameter.
Definition: item.h:678
virtual bool set_value(THD *thd, sp_rcontext *ctx, Item **it)=0
virtual const Send_field * get_out_param_info() const
Definition: item.h:698
A wrapper class for null-terminated constant strings.
Definition: sql_string.h:75
const char * ptr() const
Return string buffer.
Definition: sql_string.h:106
bool is_set() const
Check if m_ptr is set.
Definition: sql_string.h:110
size_t length() const
Return name length.
Definition: sql_string.h:114
void set(const char *str_arg, size_t length_arg)
Initialize from a C string whose length is already known.
Definition: sql_string.h:84
Using this class is fraught with peril, and you need to be very careful when doing so.
Definition: sql_string.h:168
bool append(const String &s)
Definition: sql_string.cc:413
const CHARSET_INFO * charset() const
Definition: sql_string.h:241
const char * ptr() const
Definition: sql_string.h:250
bool set_or_copy_aligned(const char *s, size_t arg_length, const CHARSET_INFO *cs)
Definition: sql_string.cc:326
void mark_as_const()
Definition: sql_string.h:248
size_t length() const
Definition: sql_string.h:242
size_t numchars() const
Definition: sql_string.cc:532
bool copy()
Definition: sql_string.cc:192
void set(String &str, size_t offset, size_t arg_length)
Definition: sql_string.h:281
For each client connection we create a separate thread with THD serving as a thread/connection descri...
Definition: sql_lexer_thd.h:34
Table_ref * outer_join_nest() const
Returns the outer join nest that this Table_ref belongs to, if any.
Definition: table.h:3388
table_map map() const
Return table map derived from table number.
Definition: table.h:3880
bool is_view() const
Return true if this represents a named view.
Definition: table.h:3052
bool is_inner_table_of_outer_join() const
Return true if this table is an inner table of some outer join.
Definition: table.h:3403
bool outer_join
True if right argument of LEFT JOIN; false in other cases (i.e.
Definition: table.h:3713
Table_ref * next_local
Definition: table.h:3482
Table_ref * any_outer_leaf_table()
Return any leaf table that is not an inner table of an outer join.
Definition: table.h:3229
TABLE * table
Definition: table.h:3565
Table_ref * next_name_resolution_table
Definition: table.h:3562
This is an interface to be used from Item_trigger_field to access information about table trigger fie...
Definition: table_trigger_field_support.h:44
virtual TABLE * get_subject_table()=0
Type properties, used to collect type information for later assignment to an Item object.
Definition: item.h:626
const uint32 m_max_length
Definition: item.h:657
const bool m_unsigned_flag
Definition: item.h:656
const DTCollation m_collation
Definition: item.h:658
Type_properties(enum_field_types type_arg)
Constructor for any signed numeric type or date type Defaults are provided for attributes like signed...
Definition: item.h:630
Type_properties(enum_field_types type_arg, const CHARSET_INFO *charset)
Constructor for character type, with explicit character set.
Definition: item.h:648
Type_properties(enum_field_types type_arg, bool unsigned_arg)
Constructor for any numeric type, with explicit signedness.
Definition: item.h:638
const enum_field_types m_type
Definition: item.h:655
Class used as argument to Item::walk() together with used_tables_for_level()
Definition: item.h:268
Used_tables(Query_block *select)
Definition: item.h:270
table_map used_tables
Accumulated used tables data.
Definition: item.h:273
Query_block *const select
Level for which data is accumulated.
Definition: item.h:272
Definition: item_cmpfunc.h:1790
Definition: mem_root_deque.h:287
A (partial) implementation of std::deque allocating its blocks on a MEM_ROOT.
Definition: mem_root_deque.h:110
iterator begin()
Definition: mem_root_deque.h:438
iterator end()
Definition: mem_root_deque.h:439
my_decimal class limits 'decimal_t' type to what we need in MySQL.
Definition: my_decimal.h:94
uint precision() const
Definition: my_decimal.h:160
bool sign() const
Definition: my_decimal.h:158
sp_head represents one instance of a stored program.
Definition: sp_head.h:380
Definition: sp_rcontext.h:77
Definition: item_func.h:2953
static MEM_ROOT mem_root
Definition: client_plugin.cc:110
#define L
Definition: ctype-tis620.cc:76
#define U
Definition: ctype-tis620.cc:75
static constexpr int DECIMAL_NOT_SPECIFIED
Definition: decimal.h:154
#define E_DEC_OVERFLOW
Definition: decimal.h:144
enum_query_type
Query type constants (usable as bitmap flags).
Definition: enum_query_type.h:31
@ QT_NORMALIZED_FORMAT
Change all Item_basic_constant to ? (used by query rewrite to compute digest.) Un-resolved hints will...
Definition: enum_query_type.h:69
Fido Client Authentication nullptr
Definition: fido_client_plugin.cc:222
bool is_temporal_type_with_time(enum_field_types type)
Tests if field type is temporal and has time part, i.e.
Definition: field_common_properties.h:137
bool is_temporal_type(enum_field_types type)
Tests if field type is temporal, i.e.
Definition: field_common_properties.h:115
bool is_string_type(enum_field_types type)
Tests if field type is a string type.
Definition: field_common_properties.h:89
bool is_numeric_type(enum_field_types type)
Tests if field type is a numeric type.
Definition: field_common_properties.h:65
bool is_temporal_type_with_date(enum_field_types type)
Tests if field type is temporal and has date part, i.e.
Definition: field_common_properties.h:156
bool is_temporal_type_with_date_and_time(enum_field_types type)
Tests if field type is temporal and has date and time parts, i.e.
Definition: field_common_properties.h:177
This file contains the field type.
enum_field_types
Column types for MySQL.
Definition: field_types.h:53
@ MYSQL_TYPE_BOOL
Currently just a placeholder.
Definition: field_types.h:76
@ MYSQL_TYPE_TIME2
Internal to MySQL.
Definition: field_types.h:73
@ MYSQL_TYPE_VARCHAR
Definition: field_types.h:69
@ MYSQL_TYPE_LONGLONG
Definition: field_types.h:62
@ MYSQL_TYPE_LONG_BLOB
Definition: field_types.h:83
@ MYSQL_TYPE_VAR_STRING
Definition: field_types.h:85
@ MYSQL_TYPE_BLOB
Definition: field_types.h:84
@ MYSQL_TYPE_TINY
Definition: field_types.h:55
@ MYSQL_TYPE_TIME
Definition: field_types.h:65
@ MYSQL_TYPE_SET
Definition: field_types.h:80
@ MYSQL_TYPE_NEWDATE
Internal to MySQL.
Definition: field_types.h:68
@ MYSQL_TYPE_JSON
Definition: field_types.h:77
@ MYSQL_TYPE_STRING
Definition: field_types.h:86
@ MYSQL_TYPE_NULL
Definition: field_types.h:60
@ MYSQL_TYPE_ENUM
Definition: field_types.h:79
@ MYSQL_TYPE_TINY_BLOB
Definition: field_types.h:81
@ MYSQL_TYPE_LONG
Definition: field_types.h:57
@ MYSQL_TYPE_BIT
Definition: field_types.h:70
@ MYSQL_TYPE_INVALID
Definition: field_types.h:75
@ MYSQL_TYPE_GEOMETRY
Definition: field_types.h:87
@ MYSQL_TYPE_NEWDECIMAL
Definition: field_types.h:78
@ MYSQL_TYPE_DECIMAL
Definition: field_types.h:54
@ MYSQL_TYPE_TYPED_ARRAY
Used for replication only.
Definition: field_types.h:74
@ MYSQL_TYPE_DOUBLE
Definition: field_types.h:59
@ MYSQL_TYPE_MEDIUM_BLOB
Definition: field_types.h:82
@ MYSQL_TYPE_DATETIME2
Internal to MySQL.
Definition: field_types.h:72
@ MYSQL_TYPE_SHORT
Definition: field_types.h:56
@ MYSQL_TYPE_DATE
Definition: field_types.h:64
@ MYSQL_TYPE_FLOAT
Definition: field_types.h:58
@ MYSQL_TYPE_TIMESTAMP
Definition: field_types.h:61
@ MYSQL_TYPE_INT24
Definition: field_types.h:63
@ MYSQL_TYPE_DATETIME
Definition: field_types.h:66
@ MYSQL_TYPE_TIMESTAMP2
Definition: field_types.h:71
@ MYSQL_TYPE_YEAR
Definition: field_types.h:67
static const std::string dec("DECRYPTION")
void my_error(int nr, myf MyFlags,...)
Fill in and print a previously registered error message.
Definition: my_error.cc:216
static int flags[50]
Definition: hp_test1.cc:40
#define MY_COLL_ALLOW_SUPERSET_CONV
Definition: item.h:165
const Name_string null_name_string
monotonicity_info
Definition: item.h:580
@ NON_MONOTONIC
Definition: item.h:581
@ MONOTONIC_STRICT_INCREASING
Definition: item.h:584
@ MONOTONIC_INCREASING_NOT_NULL
Definition: item.h:583
@ MONOTONIC_INCREASING
Definition: item.h:582
@ MONOTONIC_STRICT_INCREASING_NOT_NULL
Definition: item.h:585
Item * GetNthVisibleField(const mem_root_deque< Item * > &fields, size_t index)
Definition: item.h:7200
longlong longlong_from_string_with_check(const CHARSET_INFO *cs, const char *cptr, const char *end, int unsigned_target)
Converts a string to a longlong integer, with warnings.
Definition: item.cc:3534
Bounds_checked_array< Item * > Ref_item_array
Definition: item.h:86
Item * TransformItem(Item *item, T &&transformer)
Same as WalkItem, but for Item::transform().
Definition: item.h:3613
bool agg_item_charsets_for_string_result(DTCollation &c, const char *name, Item **items, uint nitems, int item_sep=1)
Definition: item.h:3869
Item_result numeric_context_result_type(enum_field_types data_type, Item_result result_type, uint8 decimals)
Definition: item.h:138
bool WalkItem(Item *item, enum_walk walk, T &&functor)
A helper class to give in a functor to Item::walk().
Definition: item.h:3587
Cached_item * new_Cached_item(THD *thd, Item *item)
Create right type of Cached_item for an item.
Definition: item_buff.cc:55
bool agg_item_collations_for_comparison(DTCollation &c, const char *name, Item **items, uint nitems, uint flags)
Definition: item.cc:2548
Item * CompileItem(Item *item, T &&analyzer, U &&transformer)
Same as WalkItem, but for Item::compile().
Definition: item.h:3600
#define MY_COLL_DISALLOW_NONE
Definition: item.h:167
size_t CountHiddenFields(const mem_root_deque< Item * > &fields)
Definition: item.h:7195
static uint32 char_to_byte_length_safe(uint32 char_length_arg, uint32 mbmaxlen_arg)
Definition: item.h:132
void convert_and_print(const String *from_str, String *to_str, const CHARSET_INFO *to_cs)
Helper method: Convert string to the given charset, then print.
Definition: item.cc:10695
bool(Item::* Item_analyzer)(uchar **argp)
Definition: item.h:712
Item_field * FindEqualField(Item_field *item_field, table_map reachable_tables, bool replace, bool *found)
Definition: item.cc:10872
enum monotonicity_info enum_monotonicity_info
bool agg_item_set_converter(DTCollation &coll, const char *fname, Item **args, uint nargs, uint flags, int item_sep, bool only_consts)
Definition: item.cc:2554
void item_init(void)
Init all special items.
Definition: item.cc:127
size_t CountVisibleFields(const mem_root_deque< Item * > &fields)
Definition: item.h:7190
bool ItemsAreEqual(const Item *a, const Item *b, bool binary_cmp)
Returns true iff the two items are equal, as in a->eq(b), after unwrapping refs and Item_cache object...
Definition: item.cc:10944
Item_result item_cmp_type(Item_result a, Item_result b)
Definition: item.cc:9284
void(* Cond_traverser)(const Item *item, void *arg)
Definition: item.h:722
Item *(Item::* Item_transformer)(uchar *arg)
Type for transformers used by Item::transform and Item::compile.
Definition: item.h:721
#define NAME_STRING(x)
Definition: item.h:347
bool is_null_on_empty_table(THD *thd, Item_field *i)
Check if the column reference that is currently being resolved, will be set to NULL if its qualifying...
Definition: item.cc:5578
bool AllItemsAreEqual(const Item *const *a, const Item *const *b, int num_items, bool binary_cmp)
Returns true iff all items in the two arrays (which must be of the same size) are equal,...
Definition: item.cc:10948
std::string ItemToString(const Item *item)
Definition: item.cc:10860
const String my_null_string
double double_from_string_with_check(const CHARSET_INFO *cs, const char *cptr, const char *end)
Definition: item.cc:3502
#define COND_FILTER_ALLPASS
Default condition filtering (selectivity) values used by get_filtering_effect() and friends when bett...
Definition: item.h:101
#define MY_COLL_ALLOW_NUMERIC_CONV
Definition: item.h:168
bool agg_item_charsets_for_comparison(DTCollation &c, const char *name, Item **items, uint nitems, int item_sep=1)
Definition: item.h:3876
int stored_field_cmp_to_item(THD *thd, Field *field, Item *item)
Compare the value stored in field with the expression from the query.
Definition: item.cc:9443
#define MY_COLL_ALLOW_COERCIBLE_CONV
Definition: item.h:166
bool agg_item_charsets(DTCollation &c, const char *name, Item **items, uint nitems, uint flags, int item_sep, bool only_consts)
Definition: item.cc:2660
bool resolve_const_item(THD *thd, Item **ref, Item *cmp_item)
Substitute a const item with a simpler const item, if possible.
Definition: item.cc:9309
A better implementation of the UNIX ctype(3) library.
static constexpr uint32_t MY_CS_PUREASCII
Definition: m_ctype.h:142
#define MY_REPERTOIRE_UNICODE30
Definition: m_ctype.h:154
MYSQL_PLUGIN_IMPORT CHARSET_INFO * system_charset_info
Definition: mysqld.cc:1545
#define my_strcasecmp(s, a, b)
Definition: m_ctype.h:718
uint my_string_repertoire(const CHARSET_INFO *cs, const char *str, size_t len)
Definition: ctype.cc:775
CHARSET_INFO my_charset_utf8mb4_bin
Definition: ctype-utf8.cc:7795
MYSQL_PLUGIN_IMPORT CHARSET_INFO my_charset_bin
Definition: ctype-bin.cc:511
MYSQL_PLUGIN_IMPORT CHARSET_INFO my_charset_utf8mb3_general_ci
Definition: ctype-utf8.cc:5779
#define MY_REPERTOIRE_ASCII
Definition: m_ctype.h:152
#define NullS
Definition of the null string (a null pointer of type char *), used in some of our string handling co...
Definition: m_string.h:53
longlong my_strtoll10(const char *nptr, const char **endptr, int *error)
Definition: my_strtoll10.cc:87
Various macros useful for communicating with memory debuggers, such as Valgrind.
void TRASH(void *ptr, size_t length)
Put bad content in memory to be sure it will segfault if dereferenced.
Definition: memory_debugging.h:71
This file follows Google coding style, except for the name MEM_ROOT (which is kept for historical rea...
std::unique_ptr< T, Destroy_only< T > > unique_ptr_destroy_only
std::unique_ptr, but only destroying.
Definition: my_alloc.h:489
static void bitmap_set_bit(MY_BITMAP *map, uint bit)
Definition: my_bitmap.h:80
Header for compiler-dependent features.
#define DBUG_PRINT(keyword, arglist)
Definition: my_dbug.h:181
#define DBUG_FILE
Definition: my_dbug.h:194
#define DBUG_TRACE
Definition: my_dbug.h:146
It is interface module to fixed precision decimals library.
int my_decimal_int_part(uint precision, uint decimals)
Definition: my_decimal.h:82
void my_decimal_neg(decimal_t *arg)
Definition: my_decimal.h:364
int my_decimal_set_zero(my_decimal *d)
Definition: my_decimal.h:286
uint32 my_decimal_precision_to_length_no_truncation(uint precision, uint8 scale, bool unsigned_flag)
Definition: my_decimal.h:220
Utility functions for converting between ulonglong and double.
static constexpr double LLONG_MAX_DOUBLE
Definition: my_double2ulonglong.h:57
#define ulonglong2double(A)
Definition: my_double2ulonglong.h:46
Some integer typedefs for easier portability.
unsigned long long int ulonglong
Definition: my_inttypes.h:56
uint8_t uint8
Definition: my_inttypes.h:63
unsigned char uchar
Definition: my_inttypes.h:52
long long int longlong
Definition: my_inttypes.h:55
int8_t int8
Definition: my_inttypes.h:62
#define MY_INT32_NUM_DECIMAL_DIGITS
Definition: my_inttypes.h:100
#define MYF(v)
Definition: my_inttypes.h:97
int32_t int32
Definition: my_inttypes.h:66
uint16_t uint16
Definition: my_inttypes.h:65
#define MY_INT64_NUM_DECIMAL_DIGITS
Definition: my_inttypes.h:103
uint32_t uint32
Definition: my_inttypes.h:67
#define UINT_MAX32
Definition: my_inttypes.h:79
Common header for many mysys elements.
uint64_t table_map
Definition: my_table_map.h:30
Interface for low level time utilities.
unsigned int my_time_flags_t
Flags to str_to_datetime and number_to_datetime.
Definition: my_time.h:94
Common definition between mysql server & client.
#define MAX_BLOB_WIDTH
Default width for blob in bytes.
Definition: mysql_com.h:905
#define MAX_CHAR_WIDTH
Max width for a CHAR column, in number of characters.
Definition: mysql_com.h:903
Time declarations shared between the server and client API: you should not add anything to this heade...
enum_mysql_timestamp_type
Definition: mysql_time.h:45
static bool replace
Definition: mysqlimport.cc:66
std::string str(const mysqlrouter::ConfigGenerator::Options::Endpoint &ep)
Definition: config_generator.cc:1044
Definition: buf0block_hint.cc:30
const std::string charset("charset")
Definition: commit_order_queue.h:34
PT & ref(PT *tp)
Definition: tablespace_impl.cc:359
bool length(const dd::Spatial_reference_system *srs, const Geometry *g1, double *length, bool *null) noexcept
Computes the length of linestrings and multilinestrings.
Definition: length.cc:76
Cursor end()
A past-the-end Cursor.
Definition: rules_table_service.cc:192
std::map< Key, Value, Compare, ut::allocator< std::pair< const Key, Value > > > map
Specialization of map which uses ut_allocator.
Definition: ut0new.h:2892
struct result result
Definition: result.h:34
type_conversion_status
Status when storing a value in a field or converting from one datatype to another.
Definition: field.h:202
#define MY_REPERTOIRE_NUMERIC
Definition: field.h:258
enum_field_types real_type_to_type(enum_field_types real_type)
Convert temporal real types as returned by field->real_type() to field type as returned by field->typ...
Definition: field.h:393
Value_generator_source
Enum to indicate source for which value generator is used.
Definition: field.h:473
@ VGS_DEFAULT_EXPRESSION
Definition: field.h:475
@ VGS_GENERATED_COLUMN
Definition: field.h:474
#define my_charset_numeric
Definition: field.h:257
Derivation
For use.
Definition: field.h:179
@ DERIVATION_COERCIBLE
Definition: field.h:182
@ DERIVATION_SYSCONST
Definition: field.h:183
@ DERIVATION_EXPLICIT
Definition: field.h:186
@ DERIVATION_NONE
Definition: field.h:185
@ DERIVATION_NUMERIC
Definition: field.h:181
@ DERIVATION_IMPLICIT
Definition: field.h:184
@ DERIVATION_IGNORABLE
Definition: field.h:180
File containing constants that can be used throughout the server.
constexpr const table_map RAND_TABLE_BIT
Definition: sql_const.h:112
constexpr const int MAX_TIME_WIDTH
-838:59:59
Definition: sql_const.h:71
constexpr const int MAX_DATE_WIDTH
YYYY-MM-DD.
Definition: sql_const.h:69
constexpr const size_t STRING_BUFFER_USUAL_SIZE
Definition: sql_const.h:125
constexpr const table_map OUTER_REF_TABLE_BIT
Definition: sql_const.h:111
constexpr const int MAX_DOUBLE_STR_LENGTH
-[digits].E+###
Definition: sql_const.h:157
enum_walk
Enumeration for {Item,Query_block[_UNIT],Table_function}walk.
Definition: sql_const.h:287
bool(Item::*)(unsigned char *) Item_processor
Processor type for {Item,Query_block[_UNIT],Table_function}walk.
Definition: sql_const.h:305
constexpr const table_map INNER_TABLE_BIT
Definition: sql_const.h:110
constexpr const int MAX_DATETIME_WIDTH
YYYY-MM-DD HH:MM:SS.
Definition: sql_const.h:77
enum_mark_columns
Definition: sql_const.h:230
Our own string classes, used pervasively throughout the executor.
case opt name
Definition: sslopt-case.h:33
Access paths are a query planning structure that correspond 1:1 to iterators, in that an access path ...
Definition: access_path.h:193
Definition: m_ctype.h:385
uint mbmaxlen
Definition: m_ctype.h:409
Struct used to pass around arguments to/from check_function_as_value_generator.
Definition: item.h:487
int err_code
the error code found during check(if any)
Definition: item.h:494
int col_index
the order of the column in table
Definition: item.h:492
const char * banned_function_name
the name of the function which is not allowed
Definition: item.h:501
Value_generator_source source
Definition: item.h:499
int get_unnamed_function_error_code() const
Return the correct error code, based on whether or not if we are checking for disallowed functions in...
Definition: item.h:506
Check_function_as_value_generator_parameters(int default_error_code, Value_generator_source val_gen_src)
Definition: item.h:488
This class represents a subquery contained in some subclass of Item_subselect,.
Definition: item.h:783
Strategy strategy
The strategy for executing the subquery.
Definition: item.h:817
Strategy
The strategy for executing the subquery.
Definition: item.h:785
@ kMaterializable
An independent subquery that is materialized, e.g.
@ kIndependentSingleRow
An independent single-row subquery that is evaluated once, e.g.
@ kNonMaterializable
A subquery that is reevaluated for each row, e.g.
AccessPath * path
The root path of the subquery.
Definition: item.h:814
int row_width
The width (in bytes) of the subquery's rows.
Definition: item.h:823
The current state of the privilege checking process for the current user, SQL statement and SQL objec...
Definition: table.h:357
Aggregate_ref_update(Item_sum *target, Query_block *owner)
Definition: item.h:3076
Query_block * m_owner
Definition: item.h:3075
Item_sum * m_target
Definition: item.h:3074
Aggregate_replacement(Item_sum *target, Item_field *replacement)
Definition: item.h:3050
Item_field * m_replacement
Definition: item.h:3049
Item_sum * m_target
Definition: item.h:3048
Context struct used by walk method collect_scalar_subqueries to accumulate information about scalar s...
Definition: item.h:2791
Item * m_join_condition_context
Definition: item.h:2797
Location
Definition: item.h:2792
@ L_JOIN_COND
Definition: item.h:2792
@ L_HAVING
Definition: item.h:2792
@ L_SELECT
Definition: item.h:2792
@ L_WHERE
Definition: item.h:2792
bool m_collect_unconditionally
Definition: item.h:2798
int8 m_location
we are currently looking at this kind of clause, cf. enum Location
Definition: item.h:2796
Collect_scalar_subquery_info()=default
std::vector< Css_info > m_list
accumulated all scalar subqueries found
Definition: item.h:2794
Minion class under Collect_scalar_subquery_info.
Definition: item.h:2768
Item * m_join_condition
Where did we find item above? Used when m_location == L_JOIN_COND, nullptr for other locations.
Definition: item.h:2776
bool m_add_coalesce
If true, add a COALESCE around replaced subquery: used for implicitly grouped COUNT() in subquery sel...
Definition: item.h:2781
table_map m_correlation_map
Definition: item.h:2773
Item_singlerow_subselect * item
the scalar subquery
Definition: item.h:2772
int8 m_location
set of locations
Definition: item.h:2770
bool m_implicitly_grouped_and_no_union
If true, we can forego cardinality checking of the derived table.
Definition: item.h:2778
Mode m_default_value
Definition: item.h:3029
Field * m_target
The field to be replaced.
Definition: item.h:3022
Item_field_replacement(Field *target, Item_field *item, Query_block *select, Mode default_value=Mode::CONFLATE)
Definition: item.h:3030
Mode
Definition: item.h:3024
Item_field * m_item
The replacement field.
Definition: item.h:3023
Item_replacement(Query_block *transformed_block, Query_block *current_block)
Definition: item.h:3018
Query_block * m_curr_block
Transformed query block or a contained.
Definition: item.h:3015
Query_block * m_trans_block
Transformed query block.
Definition: item.h:3014
Item * m_target
The item identifying the view_ref to be replaced.
Definition: item.h:3039
Field * m_field
The replacement field.
Definition: item.h:3040
Item_view_ref_replacement(Item *target, Field *field, Query_block *select)
Definition: item.h:3043
< Argument object to change_context_processor
Definition: item.h:4092
Name_resolution_context * m_context
Definition: item.h:4093
Change_context(Name_resolution_context *context)
Definition: item.h:4094
Argument structure for walk processor Item::update_depended_from.
Definition: item.h:4119
Query_block * old_depended_from
Definition: item.h:4120
Query_block * new_depended_from
Definition: item.h:4121
The MEM_ROOT is a simple arena, where allocations are carved out of larger blocks.
Definition: my_alloc.h:83
void * Alloc(size_t length)
Allocate memory.
Definition: my_alloc.h:145
Definition: mysql_lex_string.h:40
const char * str
Definition: mysql_lex_string.h:41
size_t length
Definition: mysql_lex_string.h:42
Definition: mysql_lex_string.h:35
char * str
Definition: mysql_lex_string.h:36
size_t length
Definition: mysql_lex_string.h:37
Definition: mysql_time.h:82
Definition: my_bitmap.h:43
Name_resolution_context * next_context
Link to next name res context with the same query block as the base.
Definition: item.h:404
Name_resolution_context()
Definition: item.h:460
Table_ref * view_error_handler_arg
Definition: item.h:442
Name_resolution_context * outer_context
Definition: item.h:402
Security_context * security_ctx
Definition: item.h:458
Table_ref * first_name_resolution_table
Definition: item.h:422
void init()
Definition: item.h:470
Table_ref * last_name_resolution_table
Definition: item.h:427
Query_block * query_block
Definition: item.h:434
bool resolve_in_select_list
When true, items are resolved in this context against Query_block::item_list, SELECT_lex::group_list ...
Definition: item.h:452
bool view_error_handler
Definition: item.h:441
Table_ref * table_list
Definition: item.h:414
void resolve_in_table_list_only(Table_ref *tables)
Definition: item.h:477
Environment data for the contextualization phase.
Definition: parse_tree_node_base.h:121
const char * alias
alias or table name
Definition: table.h:1581
bool has_null_row() const
Definition: table.h:2092
MY_BITMAP * fields_set_during_insert
A pointer to the bitmap of table fields (columns), which are explicitly set in the INSERT INTO statem...
Definition: table.h:1660
bool alias_name_used
Definition: table.h:1786
bool is_nullable() const
Return whether table is nullable.
Definition: table.h:1994
void mark_column_used(Field *field, enum enum_mark_columns mark)
Mark column as either read or written (or none) according to mark_used.
Definition: table.cc:5421
Bison "location" class.
Definition: parse_location.h:43
Definition: completion_hash.h:35
Descriptor of what and how to cache for Item::cache_const_expr_transformer/analyzer.
Definition: item.h:3568
Item * cache_item
Item to cache. Used as a binary flag, but kept as Item* for assertion.
Definition: item.h:3573
List< Item > stack
Path from the expression's top to the current item in item tree used to track parent of current item ...
Definition: item.h:3571
Item::enum_const_item_cache cache_arg
How to cache JSON data.
Definition: item.h:3575
Replacement of system's struct timeval to ensure we can carry 64 bit values even on a platform which ...
Definition: my_time_t.h:45
This file defines all base public constants related to triggers in MySQL.
enum_trigger_variable_type
Enum constants to designate NEW and OLD trigger pseudo-variables.
Definition: trigger_def.h:73
unsigned int uint
Definition: uca9-dump.cc:75
Item_result
Type of the user defined function return slot and arguments.
Definition: udf_registration_types.h:39
@ STRING_RESULT
not valid for UDFs
Definition: udf_registration_types.h:41
@ DECIMAL_RESULT
not valid for UDFs
Definition: udf_registration_types.h:45
@ REAL_RESULT
char *
Definition: udf_registration_types.h:42
@ INT_RESULT
double
Definition: udf_registration_types.h:43
@ INVALID_RESULT
Definition: udf_registration_types.h:40
@ ROW_RESULT
long long
Definition: udf_registration_types.h:44