1#ifndef ITEM_CMPFUNC_INCLUDED
2#define ITEM_CMPFUNC_INCLUDED
238 if ((*left)->is_temporal()) (*left)->cmp_context =
INT_RESULT;
239 if ((*right)->is_temporal()) (*right)->cmp_context =
INT_RESULT;
259 bool *is_null)
const;
280 const Item *warn_item,
bool *is_null){
nullptr};
285 const Item *warn_item,
bool *is_null){
nullptr};
380 const char *
func_name()
const override {
return "true"; }
395 const char *
func_name()
const override {
return "false"; }
399 str->append(
"false");
517 const char *
func_name()
const override {
return "<in_optimizer>"; }
534 virtual const char *
symbol(
bool invert)
const = 0;
543 bool eqne_op()
const override {
return true; }
544 bool l_op()
const override {
return false; }
560 const char *
symbol(
bool invert)
const override {
return invert ?
"<>" :
"="; }
569 const char *
symbol(
bool invert [[maybe_unused]])
const override {
582 const char *
symbol(
bool invert)
const override {
return invert ?
"=" :
"<>"; }
592 const char *
symbol(
bool invert)
const override {
return invert ?
"<=" :
">"; }
593 bool eqne_op()
const override {
return false; }
594 bool l_op()
const override {
return false; }
600 const char *
symbol(
bool invert)
const override {
return invert ?
">=" :
"<"; }
601 bool eqne_op()
const override {
return false; }
602 bool l_op()
const override {
return true; }
608 const char *
symbol(
bool invert)
const override {
return invert ?
"<" :
">="; }
609 bool eqne_op()
const override {
return false; }
610 bool l_op()
const override {
return false; }
616 const char *
symbol(
bool invert)
const override {
return invert ?
">" :
"<="; }
617 bool eqne_op()
const override {
return false; }
618 bool l_op()
const override {
return true; }
723 const char *
func_name()
const override {
return "xor"; }
732 double rows_in_table)
override;
742 const char *
func_name()
const override {
return "not"; }
750 double rows_in_table)
override;
771 const char *
func_name()
const override {
return "match"; }
780 double rows_in_table)
override {
782 fields_to_ignore, rows_in_table);
876 const char *
func_name()
const override {
return "<if>"; }
888 assert(
m_join !=
nullptr);
937 const char *
func_name()
const override {
return "<not>"; }
974 const char *
func_name()
const override {
return "<nop>"; }
1012 bool is_multi_column_key,
1013 String *join_key_buffer) const;
1068 double rows_in_table)
override;
1138 double rows_in_table)
override;
1158 double rows_in_table)
override;
1178 double rows_in_table)
override;
1198 double rows_in_table)
override;
1211 const char *
func_name()
const override {
return "reject_if"; }
1219 double rows_in_table)
override;
1250 double rows_in_table)
override;
1270 double rows_in_table)
override;
1288 :
Item_int_func(pos, a, b, c), negated(false), pred_level(false) {
1289 if (is_negation) negate();
1293 if (is_negation) negate();
1305 bool eq(
const Item *item,
bool binary_cmp)
const override;
1324 compare_as_dates_with_strings(false),
1325 compare_as_temporal_dates(false),
1326 compare_as_temporal_times(false) {}
1330 const char *
func_name()
const override {
return "between"; }
1347 double rows_in_table)
override;
1352 if (pred_level && !negated)
return;
1400 :
super(pos, alloc_row(pos,
mem_root, expr1, expr2, opt_expr_list)),
1409 const char *
func_name()
const override {
return "interval"; }
1444 double real_op()
override;
1459 const char *
func_name()
const override {
return "coalesce"; }
1470 double real_op()
override;
1490 const char *
func_name()
const override {
return "any_value"; }
1637 bool fill(
Item **items,
uint item_count);
1662 bool find_item(
Item *item)
override;
1663 bool compare_elems(
uint pos1,
uint pos2)
const override;
1667 void sort_array()
override;
1691 down_cast<Item_int *>(item)->value = base[pos].val;
1694 bool find_item(
Item *item)
override;
1695 bool compare_elems(
uint pos1,
uint pos2)
const override;
1698 void set(
uint pos,
Item *item)
override { val_item(item, &base[pos]); }
1699 void sort_array()
override;
1700 virtual void val_item(
Item *item, packed_longlong *
result);
1712 void val_item(
Item *item, packed_longlong *
result)
override;
1724 void val_item(
Item *item, packed_longlong *
result)
override;
1744 void val_item(
Item *item, packed_longlong *
result)
override;
1757 down_cast<Item_float *>(item)->value = base[pos];
1759 bool find_item(
Item *item)
override;
1760 bool compare_elems(
uint pos1,
uint pos2)
const override;
1764 void sort_array()
override;
1777 down_cast<Item_decimal *>(item)->set_decimal_value(&base[pos]);
1779 bool find_item(
Item *item)
override;
1780 bool compare_elems(
uint pos1,
uint pos2)
const override;
1784 void sort_array()
override;
1851 const cmp_item_string *l_cmp = down_cast<const cmp_item_string *>(ci);
1857 if (res && (res != &value || !res->
is_alloced())) {
1890 void store_value(
Item *item)
override;
1904 const bool rc = value != arg->
val_int();
1908 const cmp_item_int *l_cmp = down_cast<const cmp_item_int *>(ci);
1909 return (value < l_cmp->value) ? -1 : ((value == l_cmp->
value) ? 0 : 1);
1929 void store_value(
Item *item)
override;
1944 const bool rc = value != arg->
val_real();
1948 const cmp_item_real *l_cmp = down_cast<const cmp_item_real *>(ci);
1949 return (value < l_cmp->value) ? -1 : ((value == l_cmp->
value) ? 0 : 1);
1958 void store_value(
Item *item)
override;
1995 Item *first_expr_arg,
Item *else_expr_arg)
2003 ncases =
list->size();
2004 if (first_expr_arg) {
2005 first_expr_num =
list->size();
2006 list->push_back(first_expr_arg);
2008 if (else_expr_arg) {
2009 else_expr_num =
list->size();
2010 list->push_back(else_expr_arg);
2013 memset(&cmp_items, 0,
sizeof(cmp_items));
2064 bool have_null{
false};
2066 bool m_populated{
false};
2070 bool m_values_are_const{
true};
2072 bool m_need_populate{
false};
2078 bool dep_subq_in_list{
false};
2080 bool first_resolve_call{
true};
2089 memset(&cmp_items, 0,
sizeof(cmp_items));
2109 bool populate_bisection(
THD *thd);
2125 double rows_in_table)
override;
2129 if (pred_level && negated)
return;
2135 for (
Item **arg =
args + 1; arg != arg_end; arg++)
2146 bool list_contains_null();
2168 float get_single_col_filtering_effect(
Item_ident *fieldref,
2171 double rows_in_table);
2172 void cleanup_arrays();
2186 allocate_template_comparators(thd, item);
2191 : comparators(other.comparators),
n(other.
n) {
2192 other.comparators =
nullptr;
2197 Item *arg)
override;
2198 void store_value(
Item *item)
override;
2202 void store_value_by_template(
cmp_item *tmpl,
Item *)
override;
2214 bool allocate_template_comparators(
THD *thd,
Item *item);
2236 bool find_item(
Item *item)
override;
2237 bool compare_elems(
uint pos1,
uint pos2)
const override;
2249 void sort_array()
override;
2257 bool cache_used =
false;
2275 double rows_in_table)
override;
2301 const char *
func_name()
const override {
return "<is_not_null_test>"; }
2331 const char *
func_name()
const override {
return "isnotnull"; }
2345 double rows_in_table)
override;
2350 bool escape_is_const =
false;
2352 bool escape_evaluated =
false;
2353 bool eval_escape_clause(
THD *thd);
2361 assert(escape_arg !=
nullptr);
2365 assert(escape_arg !=
nullptr);
2392 assert(escape_is_evaluated());
2407 double rows_in_table)
override;
2419 bool check_covering_prefix_keys(
THD *thd);
2447 return list.push_back(item);
2451 return list.push_front(item);
2455 list.prepend(nlist);
2466 bool eq(
const Item *item,
bool binary_cmp)
const override;
2478 bool truth_transform_arguments(
THD *thd,
Bool_test test);
2482 bool remove_const_conds(
THD *thd,
Item *item,
Item **new_item);
2572 bool cond_false{
false};
2574 bool compare_as_dates{
false};
2583 bool compare_const(
THD *thd,
Item *c);
2597 bool update_const(
THD *thd);
2600 const char *
func_name()
const override {
return "multiple equal"; }
2610 return const_arg() ==
nullptr;
2628 template <
typename Node_cmp_func>
2640 return m_fields->cbegin();
2644 return m_fields->cbegin();
2647 return m_fields->cend();
2656 : m_fields(&item->fields) {}
2658 return m_fields->cbegin();
2662 return m_fields->cbegin();
2665 return m_fields->cend();
2667 size_t size()
const {
return m_fields->size(); }
2681 bool eq(
const Item *item,
bool binary_cmp)
const override;
2683 return fields.
head()->collation.collation;
2693 double rows_in_table)
override;
2737 double rows_in_table)
override;
2766 double rows_in_table)
override;
2775 if (item ==
nullptr)
return nullptr;
2814 down_cast<const Item_cond *>(item)->functype() ==
2824template <
class Func>
2826 if (condition ==
nullptr) {
2828 }
else if (
IsAnd(condition)) {
2829 for (
Item &item : *down_cast<Item_cond_and *>(condition)->argument_list()) {
2836 return func(condition);
Definition: item_cmpfunc.h:139
bool inject_cast_nodes()
Comparison function are expected to operate on arguments having the same data types.
Definition: item_cmpfunc.cc:1319
int compare_time_packed()
Compare arguments using numeric packed temporal representation.
Definition: item_cmpfunc.cc:1845
void cleanup()
Definition: item_cmpfunc.cc:747
uint get_child_comparator_count() const
Definition: item_cmpfunc.h:244
int compare_int_signed_unsigned()
Compare signed (*left) with unsigned (*B)
Definition: item_cmpfunc.cc:1902
String value1
Definition: item_cmpfunc.h:167
void set_datetime_cmp_func(Item_result_field *owner_arg, Item **a1, Item **b1)
Definition: item_cmpfunc.cc:1477
Item * left_cache
Definition: item_cmpfunc.h:148
longlong(* get_value_a_func)(THD *thd, Item ***item_arg, Item **cache_arg, const Item *warn_item, bool *is_null)
A function pointer that is used for retrieving the value from argument "left".
Definition: item_cmpfunc.h:279
int compare_int_unsigned_signed()
Compare unsigned (*left) with signed (*B)
Definition: item_cmpfunc.cc:1923
Arg_comparator * comparators
Definition: item_cmpfunc.h:144
Item_result m_compare_type
Definition: item_cmpfunc.h:289
Arg_comparator * get_child_comparators() const
Definition: item_cmpfunc.h:246
static bool can_compare_as_dates(const Item *a, const Item *b)
Checks whether compare_datetime() can be used to compare items.
Definition: item_cmpfunc.cc:1061
double precision
Definition: item_cmpfunc.h:146
int compare_datetime()
Compare item values as dates.
Definition: item_cmpfunc.cc:1601
uint16 comparator_count
Definition: item_cmpfunc.h:145
Item ** right
Definition: item_cmpfunc.h:141
arg_cmp_func func
Definition: item_cmpfunc.h:142
String value2
Definition: item_cmpfunc.h:167
Item ** left
Definition: item_cmpfunc.h:140
Item ** get_left_ptr() const
Definition: item_cmpfunc.h:261
Json_scalar_holder * json_scalar
Only used by compare_json() in the case where a JSON value is compared to an SQL value.
Definition: item_cmpfunc.h:162
void set_cmp_context_for_datetime()
Definition: item_cmpfunc.h:236
bool set_cmp_func(Item_result_field *owner_arg, Item **left, Item **right, Item_result type)
Sets compare functions for various datatypes.
Definition: item_cmpfunc.cc:1131
static arg_cmp_func comparator_matrix[5]
Definition: item_cmpfunc.h:231
bool use_custom_value_extractors() const
Definition: item_cmpfunc.h:250
int compare()
Definition: item_cmpfunc.h:210
Item_result get_compare_type() const
Definition: item_cmpfunc.h:242
int compare_int_signed()
Definition: item_cmpfunc.cc:1825
int compare_binary_string()
Compare strings byte by byte.
Definition: item_cmpfunc.cc:1754
Item * get_right() const
Definition: item_cmpfunc.h:262
int compare_json()
Compare two Item objects as JSON.
Definition: item_cmpfunc.cc:1693
int compare_real()
Definition: item_cmpfunc.cc:1772
bool set_null
Definition: item_cmpfunc.h:150
static bool get_date_from_const(Item *date_arg, Item *str_arg, ulonglong *const_value)
Check if str_arg is a constant and convert it to datetime packed value.
Definition: item_cmpfunc.cc:986
bool try_year_cmp_func(Item_result type)
Definition: item_cmpfunc.cc:1420
Item * right_cache
Definition: item_cmpfunc.h:149
Item_result_field * owner
Definition: item_cmpfunc.h:143
longlong(* get_value_b_func)(THD *thd, Item ***item_arg, Item **cache_arg, const Item *warn_item, bool *is_null)
Definition: item_cmpfunc.h:284
int compare_real_fixed()
Definition: item_cmpfunc.cc:1807
longlong extract_value_from_argument(THD *thd, Item *item, bool left_argument, bool *is_null) const
Definition: item_cmpfunc.cc:7856
int compare_string()
Definition: item_cmpfunc.cc:1722
int compare_decimal()
Definition: item_cmpfunc.cc:1790
int compare_row()
Definition: item_cmpfunc.cc:1941
bool compare_null_values()
Compare NULL values for two arguments.
Definition: item_cmpfunc.cc:2032
bool set_compare_func(Item_result_field *owner, Item_result type)
Definition: item_cmpfunc.cc:763
DTCollation cmp_collation
Definition: item_cmpfunc.h:165
Arg_comparator(Item **left, Item **right)
Definition: item_cmpfunc.h:171
int compare_int_unsigned()
Compare values as BIGINT UNSIGNED.
Definition: item_cmpfunc.cc:1881
Definition: item_cmpfunc.h:2700
uint max_members
Definition: item_cmpfunc.h:2702
COND_EQUAL * upper_levels
Definition: item_cmpfunc.h:2704
List< Item_equal > current_level
Definition: item_cmpfunc.h:2705
COND_EQUAL()
Definition: item_cmpfunc.h:2707
Abstract factory interface for creating comparison predicates.
Definition: item_cmpfunc.h:528
virtual ~Comp_creator()=default
virtual bool l_op() const =0
virtual bool eqne_op() const =0
virtual Item_bool_func * create(Item *a, Item *b) const =0
virtual const char * symbol(bool invert) const =0
This interface is only used by Item_allany_subselect.
const CHARSET_INFO * collation
Definition: item.h:175
Definition: item_cmpfunc.h:558
Item_bool_func * create_scalar_predicate(Item *a, Item *b) const override
Creates only an item tree node, without attempting to rewrite row constructors.
Definition: item_cmpfunc.cc:282
const char * symbol(bool invert) const override
This interface is only used by Item_allany_subselect.
Definition: item_cmpfunc.h:560
Item_bool_func * combine(List< Item > list) const override
Combines a list of conditions exp op exp.
Definition: item_cmpfunc.cc:287
Definition: item_cmpfunc.h:567
const char * symbol(bool invert) const override
This interface is only used by Item_allany_subselect.
Definition: item_cmpfunc.h:569
Item_bool_func * create_scalar_predicate(Item *a, Item *b) const override
Creates only an item tree node, without attempting to rewrite row constructors.
Definition: item_cmpfunc.cc:291
Item_bool_func * combine(List< Item > list) const override
Combines a list of conditions exp op exp.
Definition: item_cmpfunc.cc:296
Definition: item_cmpfunc.h:605
Item_bool_func * create(Item *a, Item *b) const override
Definition: item_cmpfunc.cc:317
bool l_op() const override
Definition: item_cmpfunc.h:610
bool eqne_op() const override
Definition: item_cmpfunc.h:609
const char * symbol(bool invert) const override
This interface is only used by Item_allany_subselect.
Definition: item_cmpfunc.h:608
Definition: item_cmpfunc.h:589
bool l_op() const override
Definition: item_cmpfunc.h:594
Item_bool_func * create(Item *a, Item *b) const override
Definition: item_cmpfunc.cc:309
bool eqne_op() const override
Definition: item_cmpfunc.h:593
const char * symbol(bool invert) const override
This interface is only used by Item_allany_subselect.
Definition: item_cmpfunc.h:592
A class that represents a join condition in a hash join.
Definition: item_cmpfunc.h:86
const size_t m_max_character_length
Definition: item_cmpfunc.h:125
const table_map m_right_used_tables
Definition: item_cmpfunc.h:119
Item_eq_base * m_join_condition
Definition: item_cmpfunc.h:111
Item * right_extractor() const
Definition: item_cmpfunc.h:93
HashJoinCondition(Item_eq_base *join_condition, MEM_ROOT *mem_root)
Definition: item_cmpfunc.cc:7821
const table_map m_left_used_tables
Definition: item_cmpfunc.h:118
bool store_full_sort_key() const
Definition: item_cmpfunc.h:104
bool left_uses_any_table(table_map tables) const
Definition: item_cmpfunc.h:94
bool m_store_full_sort_key
Definition: item_cmpfunc.h:133
Item * left_extractor() const
Definition: item_cmpfunc.h:92
Item_eq_base * join_condition() const
Definition: item_cmpfunc.h:90
bool m_null_equals_null
Definition: item_cmpfunc.h:136
Item * m_right_extractor
Definition: item_cmpfunc.h:113
bool right_uses_any_table(table_map tables) const
Definition: item_cmpfunc.h:98
Item * m_left_extractor
Definition: item_cmpfunc.h:112
size_t max_character_length() const
Definition: item_cmpfunc.h:102
bool null_equals_null() const
Returns true if this join condition evaluates to TRUE if both operands are NULL.
Definition: item_cmpfunc.h:108
void set_str_value(String *str)
Definition: item.h:3575
Base class for functions that usually take two arguments, which are possibly strings,...
Definition: item_cmpfunc.h:627
bool have_rev_func() const override
Definition: item_cmpfunc.h:661
optimize_type select_optimize(const THD *) override
Definition: item_cmpfunc.h:657
bool abort_on_null
Definition: item_cmpfunc.h:634
void apply_is_true() override
Apply the IS TRUE truth property, meaning that an UNKNOWN result and a FALSE result are treated the s...
Definition: item_cmpfunc.h:673
bool convert_constant_arg(THD *thd, Item *field, Item **item, bool *converted)
Definition: item_cmpfunc.cc:607
Item_result compare_type() const
Definition: item_cmpfunc.h:672
Arg_comparator cmp
Definition: item_cmpfunc.h:633
Item_bool_func2(const POS &pos, Item *a, Item *b, Item *c)
Definition: item_cmpfunc.h:645
bool resolve_type(THD *) override
Resolve type-related information for this item, such as result field type, maximum size,...
Definition: item_cmpfunc.cc:625
Item_bool_func2(Item *a, Item *b, Item *c)
Definition: item_cmpfunc.h:639
Item_bool_func2(Item *a, Item *b)
Definition: item_cmpfunc.h:636
virtual bool set_cmp_func()
Sets up a comparator of the correct type based on the type of the function's arguments.
Definition: item_cmpfunc.h:654
const CHARSET_INFO * compare_collation() const override
Definition: item_cmpfunc.h:669
bool is_null() override
The method allows to determine nullness of a complex expression without fully evaluating it,...
Definition: item_cmpfunc.h:668
Item_bool_func2(const POS &pos, Item *a, Item *b)
Definition: item_cmpfunc.h:642
virtual enum Functype rev_functype() const
Definition: item_cmpfunc.h:660
bool ignore_unknown() const
Treat UNKNOWN result like FALSE because callers see no difference.
Definition: item_cmpfunc.h:675
const Arg_comparator * get_comparator() const
Definition: item_cmpfunc.h:680
void print(const THD *thd, String *str, enum_query_type query_type) const override
This method is used for to:
Definition: item_cmpfunc.h:663
Item * replace_scalar_subquery(uchar *) override
When walking the item tree seeing an Item_singlerow_subselect matching a target, replace it with a su...
Definition: item_cmpfunc.cc:742
void cleanup() override
Called for every Item after use (preparation and execution).
Definition: item_cmpfunc.h:676
Definition: item_cmpfunc.h:292
Item_bool_func(Item *a)
Definition: item_cmpfunc.h:299
Item_bool_func(Item *a, Item *b, Item *c)
Definition: item_cmpfunc.h:304
Item_bool_func(const POS &pos, Item *a, Item *b)
Definition: item_cmpfunc.h:310
bool m_created_by_in2exists
True <=> this item was added by IN->EXISTS subquery transformation, and should thus be deleted if we ...
Definition: item_cmpfunc.h:346
void set_created_by_in2exists()
Definition: item_cmpfunc.h:332
bool created_by_in2exists() const override
Whether this Item was created by the IN->EXISTS subquery transformation.
Definition: item_cmpfunc.h:331
Item_bool_func(const POS &pos)
Definition: item_cmpfunc.h:295
Item_bool_func(THD *thd, Item_bool_func *item)
Definition: item_cmpfunc.h:318
Item_bool_func(Item *a, Item *b)
Definition: item_cmpfunc.h:307
Item_bool_func(const POS &pos, Item *a, Item *b, Item *c)
Definition: item_cmpfunc.h:313
uint decimal_precision() const override
Definition: item_cmpfunc.h:330
bool resolve_type(THD *thd) override
Resolve type-related information for this item, such as result field type, maximum size,...
Definition: item_cmpfunc.h:326
Item_bool_func(const POS &pos, Item *a)
Definition: item_cmpfunc.h:300
bool is_bool_func() const override
Definition: item_cmpfunc.h:325
Item_bool_func()
Definition: item_cmpfunc.h:294
static const Bool_test bool_transform[10][8]
Array that transforms a boolean test according to another.
Definition: item_cmpfunc.h:339
static const char * bool_transform_names[10]
Definition: item_cmpfunc.h:334
Definition: item_cmpfunc.h:2710
Item * copy_andor_structure(THD *thd) override
Definition: item_cmpfunc.h:2725
Item_cond_and(List< Item > &list_arg)
Definition: item_cmpfunc.h:2721
COND_EQUAL cond_equal
Definition: item_cmpfunc.h:2712
const char * func_name() const override
Definition: item_cmpfunc.h:2724
enum Functype functype() const override
Definition: item_cmpfunc.h:2722
Item_cond_and()
Definition: item_cmpfunc.h:2715
Item_cond_and(const POS &pos, Item *i1, Item *i2)
Definition: item_cmpfunc.h:2718
Item_cond_and(Item *i1, Item *i2)
Definition: item_cmpfunc.h:2717
bool gc_subst_analyzer(uchar **) override
Analyzer function for GC substitution.
Definition: item_cmpfunc.h:2732
Item_cond_and(THD *thd, Item_cond_and *item)
Definition: item_cmpfunc.h:2720
Definition: item_cmpfunc.h:2742
bool gc_subst_analyzer(uchar **) override
Analyzer function for GC substitution.
Definition: item_cmpfunc.h:2761
enum Functype functype() const override
Definition: item_cmpfunc.h:2751
Item_cond_or(Item *i1, Item *i2)
Definition: item_cmpfunc.h:2746
Item * copy_andor_structure(THD *thd) override
Definition: item_cmpfunc.h:2754
Item_cond_or(List< Item > &list_arg)
Definition: item_cmpfunc.h:2750
Item_cond_or(const POS &pos, Item *i1, Item *i2)
Definition: item_cmpfunc.h:2747
Item_cond_or()
Definition: item_cmpfunc.h:2744
const char * func_name() const override
Definition: item_cmpfunc.h:2753
Item_cond_or(THD *thd, Item_cond_or *item)
Definition: item_cmpfunc.h:2749
Definition: item_cmpfunc.h:2422
void add_at_head(List< Item > *nlist)
Definition: item_cmpfunc.h:2453
bool add_at_head(Item *item)
Definition: item_cmpfunc.h:2449
void apply_is_true() override
Apply the IS TRUE truth property, meaning that an UNKNOWN result and a FALSE result are treated the s...
Definition: item_cmpfunc.h:2473
Item_cond(Item *i1, Item *i2)
Definition: item_cmpfunc.h:2432
Item_bool_func super
Definition: item_cmpfunc.h:2423
bool ignore_unknown() const
Treat UNKNOWN result like FALSE because callers see no difference.
Definition: item_cmpfunc.h:2484
void copy_andor_arguments(THD *thd, Item_cond *item)
Definition: item_cmpfunc.cc:5496
table_map used_tables() const override
Definition: item_cmpfunc.h:2467
Item_cond(const POS &pos, Item *i1, Item *i2)
Definition: item_cmpfunc.h:2436
Item_cond(List< Item > &nlist)
Definition: item_cmpfunc.h:2443
bool subst_argument_checker(uchar **) override
Definition: item_cmpfunc.h:2479
List< Item > * argument_list()
Definition: item_cmpfunc.h:2465
Type type() const override
Definition: item_cmpfunc.h:2464
Item_cond()
Definition: item_cmpfunc.h:2431
List< Item > list
Definition: item_cmpfunc.h:2426
bool equality_substitution_analyzer(uchar **) override
Definition: item_cmpfunc.h:2485
bool add(Item *item)
Definition: item_cmpfunc.h:2445
bool abort_on_null
Definition: item_cmpfunc.h:2427
Base class for the equality comparison operators = and <=>.
Definition: item_cmpfunc.h:986
Item_eq_base(Item *a, Item *b)
Definition: item_cmpfunc.h:988
Item_equal * source_multiple_equality
If this equality originally came from a multi-equality, this documents which one it came from (otherw...
Definition: item_cmpfunc.h:1045
bool contains_only_equi_join_condition() const final
Whether this Item is an equi-join condition.
Definition: item_cmpfunc.cc:7428
Item_eq_base(const POS &pos, Item *a, Item *b)
Definition: item_cmpfunc.h:989
Item * create_cast_if_needed(MEM_ROOT *mem_root, Item *argument) const
Wrap the argument in a typecast, if needed.
Definition: item_cmpfunc.cc:7793
bool append_join_key_for_hash_join(THD *thd, table_map tables, const HashJoinCondition &join_condition, bool is_multi_column_key, String *join_key_buffer) const
Read the value from the join condition, and append it to the output vector "join_key_buffer".
Definition: item_cmpfunc.cc:7767
Definition: item_cmpfunc.h:2653
ConstFieldProxy(const Item_equal *item)
Definition: item_cmpfunc.h:2655
List_STL_Iterator< const Item_field > cbegin() const
Definition: item_cmpfunc.h:2661
List_STL_Iterator< const Item_field > cend() const
Definition: item_cmpfunc.h:2664
List_STL_Iterator< const Item_field > begin() const
Definition: item_cmpfunc.h:2657
size_t size() const
Definition: item_cmpfunc.h:2667
const List< Item_field > * m_fields
Definition: item_cmpfunc.h:2670
List_STL_Iterator< const Item_field > end() const
Definition: item_cmpfunc.h:2660
Definition: item_cmpfunc.h:2634
List_STL_Iterator< Item_field > begin()
Definition: item_cmpfunc.h:2637
List_STL_Iterator< Item_field > end()
Definition: item_cmpfunc.h:2638
List< Item_field > * m_fields
Definition: item_cmpfunc.h:2651
List_STL_Iterator< const Item_field > begin() const
Definition: item_cmpfunc.h:2639
List_STL_Iterator< const Item_field > cbegin() const
Definition: item_cmpfunc.h:2643
List_STL_Iterator< const Item_field > cend() const
Definition: item_cmpfunc.h:2646
List_STL_Iterator< const Item_field > end() const
Definition: item_cmpfunc.h:2642
FieldProxy(Item_equal *item)
Definition: item_cmpfunc.h:2636
Definition: item_cmpfunc.h:2562
ConstFieldProxy get_fields() const
Definition: item_cmpfunc.h:2673
bool contains_only_equi_join_condition() const override
Whether this Item is an equi-join condition.
Definition: item_cmpfunc.h:2609
void set_const_arg(Item *c)
Definition: item_cmpfunc.h:2582
void check_covering_prefix_keys()
bool cast_incompatible_args(uchar *) override
Wrap incompatible arguments in CAST nodes to the expected data types.
Definition: item_cmpfunc.h:2602
Item * const_arg() const
Definition: item_cmpfunc.h:2581
const CHARSET_INFO * compare_collation() const override
Definition: item_cmpfunc.h:2682
void sort(Node_cmp_func compare)
Order field items in multiple equality according to a sorting criteria.
Definition: item_cmpfunc.h:2629
Arg_comparator cmp
Helper for comparing constants.
Definition: item_cmpfunc.h:2570
Item_field * get_first()
Get the first field of multiple equality, use for semantic checking.
Definition: item_cmpfunc.h:2594
const char * func_name() const override
Definition: item_cmpfunc.h:2600
optimize_type select_optimize(const THD *) override
Definition: item_cmpfunc.h:2601
List< Item_field > fields
List of equal field items.
Definition: item_cmpfunc.h:2564
FieldProxy get_fields()
Definition: item_cmpfunc.h:2672
enum Functype functype() const override
Definition: item_cmpfunc.h:2598
bool equality_substitution_analyzer(uchar **) override
Definition: item_cmpfunc.h:2686
ANY_VALUE(expr) is like expr except that it is not checked by aggregate_check logic.
Definition: item_cmpfunc.h:1486
const char * func_name() const override
Definition: item_cmpfunc.h:1490
Item_func_any_value(const POS &pos, Item *a)
Definition: item_cmpfunc.h:1488
Item_func_any_value(Item *a)
Definition: item_cmpfunc.h:1489
Definition: item_cmpfunc.h:1309
Arg_comparator ge_cmp
Definition: item_cmpfunc.h:1321
optimize_type select_optimize(const THD *) override
Definition: item_cmpfunc.h:1328
bool compare_as_dates_with_strings
Definition: item_cmpfunc.h:1316
bool is_bool_func() const override
Definition: item_cmpfunc.h:1337
Item_func_between(const POS &pos, Item *a, Item *b, Item *c, bool is_negation)
Definition: item_cmpfunc.h:1322
Item_result cmp_type
Definition: item_cmpfunc.h:1313
bool compare_as_temporal_dates
Definition: item_cmpfunc.h:1317
const CHARSET_INFO * compare_collation() const override
Definition: item_cmpfunc.h:1338
String value0
Definition: item_cmpfunc.h:1314
const char * func_name() const override
Definition: item_cmpfunc.h:1330
void update_not_null_tables()
Definition: item_cmpfunc.h:1350
uint decimal_precision() const override
Definition: item_cmpfunc.h:1341
DTCollation cmp_collation
Definition: item_cmpfunc.h:1310
bool gc_subst_analyzer(uchar **) override
Analyzer function for GC substitution.
Definition: item_cmpfunc.h:1342
bool compare_as_temporal_times
Definition: item_cmpfunc.h:1318
enum Functype functype() const override
Definition: item_cmpfunc.h:1329
A predicate that is "always true" or "always false".
Definition: item_cmpfunc.h:355
Item_func_bool_const(const POS &pos)
Definition: item_cmpfunc.h:363
Item_func_bool_const()
Definition: item_cmpfunc.h:357
bool fix_fields(THD *, Item **) override
Definition: item_cmpfunc.h:369
void cleanup() override
Called for every Item after use (preparation and execution).
Definition: item_cmpfunc.h:371
bool basic_const_item() const override
Returns true if this is a simple constant item like an integer, not a constant expression.
Definition: item_cmpfunc.h:370
CASE ... WHEN ... THEN ... END function implementation.
Definition: item_cmpfunc.h:1981
Item_result cmp_type
Definition: item_cmpfunc.h:1988
enum_field_types default_data_type() const override
Get the default data (output) type for the specific item.
Definition: item_cmpfunc.h:2026
const CHARSET_INFO * compare_collation() const override
Definition: item_cmpfunc.h:2037
cmp_item * case_item
Definition: item_cmpfunc.h:1991
int else_expr_num
Definition: item_cmpfunc.h:1984
DTCollation cmp_collation
Definition: item_cmpfunc.h:1989
Item_func super
Definition: item_cmpfunc.h:1982
Item_func_case(const POS &pos, mem_root_deque< Item * > *list, Item *first_expr_arg, Item *else_expr_arg)
Definition: item_cmpfunc.h:1994
int get_first_expr_num() const
Definition: item_cmpfunc.h:2016
const char * func_name() const override
Definition: item_cmpfunc.h:2033
enum Item_result result_type() const override
Definition: item_cmpfunc.h:2032
enum Item_result cached_result_type left_result_type
Definition: item_cmpfunc.h:1985
uint ncases
Definition: item_cmpfunc.h:1987
String tmp_value
Definition: item_cmpfunc.h:1986
enum Functype functype() const override
Definition: item_cmpfunc.h:2040
int get_else_expr_num() const
Definition: item_cmpfunc.h:2017
Definition: item_cmpfunc.h:1421
Item_func_coalesce(const POS &pos, Item *a)
Definition: item_cmpfunc.h:1427
Item_func_coalesce(const POS &pos, Item *a, Item *b)
Definition: item_cmpfunc.h:1423
enum Item_result result_type() const override
Definition: item_cmpfunc.h:1458
Item_func_coalesce(Item *a, Item *b)
Definition: item_cmpfunc.h:1440
const char * func_name() const override
Definition: item_cmpfunc.h:1459
enum_field_types default_data_type() const override
Get the default data (output) type for the specific item.
Definition: item_cmpfunc.h:1437
Item_func_coalesce(Item *a)
Definition: item_cmpfunc.h:1430
Item_func_coalesce(const POS &pos, PT_item_list *list)
Definition: item_cmpfunc.h:1433
enum Functype functype() const override
Definition: item_cmpfunc.h:1460
void set_numeric_type() override
Definition: item_cmpfunc.h:1457
Item_func_comparison is a class for comparison functions that take two arguments and return a boolean...
Definition: item_cmpfunc.h:691
bool subst_argument_checker(uchar **) override
Definition: item_cmpfunc.h:703
Item_func_comparison(Item *a, Item *b)
Definition: item_cmpfunc.h:693
Item_func_comparison(const POS &pos, Item *a, Item *b)
Definition: item_cmpfunc.h:696
bool is_null() override
The method allows to determine nullness of a complex expression without fully evaluating it,...
Definition: item_cmpfunc.cc:6707
Item * truth_transformer(THD *, Bool_test) override
Informs an item that it is wrapped in a truth test, in case it wants to transforms itself to implemen...
Definition: item_cmpfunc.cc:6582
virtual Item * negated_item()
just fake method, should never be called.
Definition: item_cmpfunc.cc:6702
bool cast_incompatible_args(uchar *) override
Wrap incompatible arguments in CAST nodes to the expected data types.
Definition: item_cmpfunc.cc:6722
Implements the comparison operator equals (=)
Definition: item_cmpfunc.h:1051
enum Functype functype() const override
Definition: item_cmpfunc.h:1056
bool gc_subst_analyzer(uchar **) override
Analyzer function for GC substitution.
Definition: item_cmpfunc.h:1063
cond_result eq_cmp_result() const override
Definition: item_cmpfunc.h:1058
Item_func_eq(Item *a, Item *b)
Definition: item_cmpfunc.h:1053
Item_func_eq(const POS &pos, Item *a, Item *b)
Definition: item_cmpfunc.h:1054
enum Functype rev_functype() const override
Definition: item_cmpfunc.h:1057
const char * func_name() const override
Definition: item_cmpfunc.h:1059
bool equality_substitution_analyzer(uchar **) override
Definition: item_cmpfunc.h:1061
The <=> operator evaluates the same as.
Definition: item_cmpfunc.h:1114
Item * truth_transformer(THD *, Bool_test) override
Informs an item that it is wrapped in a truth test, in case it wants to transforms itself to implemen...
Definition: item_cmpfunc.h:1132
bool set_cmp_func() override
Sets up a comparator of the correct type based on the type of the function's arguments.
Definition: item_cmpfunc.h:1123
cond_result eq_cmp_result() const override
Definition: item_cmpfunc.h:1130
enum Functype functype() const override
Definition: item_cmpfunc.h:1128
enum Functype rev_functype() const override
Definition: item_cmpfunc.h:1129
const char * func_name() const override
Definition: item_cmpfunc.h:1131
Item_func_equal(Item *a, Item *b)
Definition: item_cmpfunc.h:1116
bool is_null() override
The method allows to determine nullness of a complex expression without fully evaluating it,...
Definition: item_cmpfunc.h:1133
Item_func_equal(const POS &pos, Item *a, Item *b)
Definition: item_cmpfunc.h:1119
A predicate that is "always false".
Definition: item_cmpfunc.h:391
longlong val_int() override
Definition: item_cmpfunc.h:397
Item_func_false()
Definition: item_cmpfunc.h:393
const char * func_name() const override
Definition: item_cmpfunc.h:395
Item_func_false(const POS &pos)
Definition: item_cmpfunc.h:394
enum Functype functype() const override
Definition: item_cmpfunc.h:401
bool val_bool() override
Definition: item_cmpfunc.h:396
void print(const THD *, String *str, enum_query_type) const override
This method is used for to:
Definition: item_cmpfunc.h:398
Implements the comparison operator greater than or equals (>=)
Definition: item_cmpfunc.h:1144
bool gc_subst_analyzer(uchar **) override
Analyzer function for GC substitution.
Definition: item_cmpfunc.h:1153
enum Functype rev_functype() const override
Definition: item_cmpfunc.h:1149
cond_result eq_cmp_result() const override
Definition: item_cmpfunc.h:1150
Item_func_ge(Item *a, Item *b)
Definition: item_cmpfunc.h:1146
const char * func_name() const override
Definition: item_cmpfunc.h:1151
enum Functype functype() const override
Definition: item_cmpfunc.h:1148
Implements the comparison operator greater than (>)
Definition: item_cmpfunc.h:1164
bool gc_subst_analyzer(uchar **) override
Analyzer function for GC substitution.
Definition: item_cmpfunc.h:1173
Item_func_gt(Item *a, Item *b)
Definition: item_cmpfunc.h:1166
cond_result eq_cmp_result() const override
Definition: item_cmpfunc.h:1170
enum Functype rev_functype() const override
Definition: item_cmpfunc.h:1169
const char * func_name() const override
Definition: item_cmpfunc.h:1171
enum Functype functype() const override
Definition: item_cmpfunc.h:1168
Definition: item_cmpfunc.h:1495
Item_func_if(Item *a, Item *b, Item *c)
Definition: item_cmpfunc.h:1499
enum Functype functype() const override
Definition: item_cmpfunc.h:1526
enum Item_result result_type() const override
Definition: item_cmpfunc.h:1515
enum_field_types default_data_type() const override
Get the default data (output) type for the specific item.
Definition: item_cmpfunc.h:1517
const char * func_name() const override
Definition: item_cmpfunc.h:1525
void update_not_null_tables()
Definition: item_cmpfunc.h:1530
enum Item_result cached_result_type
Definition: item_cmpfunc.h:1496
Item_func_if(const POS &pos, Item *a, Item *b, Item *c)
Definition: item_cmpfunc.h:1503
Definition: item_cmpfunc.h:1463
bool field_type_defined
Definition: item_cmpfunc.h:1465
Item_func_ifnull(const POS &pos, Item *a, Item *b)
Definition: item_cmpfunc.h:1468
const char * func_name() const override
Definition: item_cmpfunc.h:1477
in_expr [NOT] IN (in_value_list).
Definition: item_cmpfunc.h:2054
DTCollation cmp_collation
Definition: item_cmpfunc.h:2084
Item_func_in(const POS &pos, PT_item_list *list, bool is_negation)
Definition: item_cmpfunc.h:2087
enum Functype functype() const override
Definition: item_cmpfunc.h:2114
const char * func_name() const override
Definition: item_cmpfunc.h:2115
Item_result left_result_type
Definition: item_cmpfunc.h:2082
bool is_bool_func() const override
Definition: item_cmpfunc.h:2116
uint decimal_precision() const override
Definition: item_cmpfunc.h:2099
const CHARSET_INFO * compare_collation() const override
Definition: item_cmpfunc.h:2117
void update_not_null_tables()
Definition: item_cmpfunc.h:2127
optimize_type select_optimize(const THD *) override
Definition: item_cmpfunc.h:2111
bool gc_subst_analyzer(uchar **) override
Analyzer function for GC substitution.
Definition: item_cmpfunc.h:2120
Definition: item_cmpfunc.h:1390
Item_row * row
Definition: item_cmpfunc.h:1393
bool use_decimal_comparison
Definition: item_cmpfunc.h:1394
const char * func_name() const override
Definition: item_cmpfunc.h:1409
interval_range * intervals
Definition: item_cmpfunc.h:1395
uint decimal_precision() const override
Definition: item_cmpfunc.h:1410
Item_int_func super
Definition: item_cmpfunc.h:1391
Item_func_interval(const POS &pos, MEM_ROOT *mem_root, Item *expr1, Item *expr2, class PT_item_list *opt_expr_list=nullptr)
Definition: item_cmpfunc.h:1398
Definition: item_cmpfunc.h:2318
const CHARSET_INFO * compare_collation() const override
Definition: item_cmpfunc.h:2336
void apply_is_true() override
Apply the IS TRUE truth property, meaning that an UNKNOWN result and a FALSE result are treated the s...
Definition: item_cmpfunc.h:2339
const char * func_name() const override
Definition: item_cmpfunc.h:2331
optimize_type select_optimize(const THD *) override
Definition: item_cmpfunc.h:2332
Item_func_isnotnull(Item *a)
Definition: item_cmpfunc.h:2320
enum Functype functype() const override
Definition: item_cmpfunc.h:2326
Item_func_isnotnull(const POS &pos, Item *a)
Definition: item_cmpfunc.h:2321
bool resolve_type(THD *thd) override
Resolve type-related information for this item, such as result field type, maximum size,...
Definition: item_cmpfunc.h:2327
Definition: item_cmpfunc.h:2254
Item_func_isnull(Item *a)
Definition: item_cmpfunc.h:2261
Item_func_isnull(const POS &pos, Item *a)
Definition: item_cmpfunc.h:2262
const char * func_name() const override
Definition: item_cmpfunc.h:2268
Item_bool_func super
Definition: item_cmpfunc.h:2255
enum Functype functype() const override
Definition: item_cmpfunc.h:2266
bool cached_value
Definition: item_cmpfunc.h:2258
const CHARSET_INFO * compare_collation() const override
Definition: item_cmpfunc.h:2280
optimize_type select_optimize(const THD *) override
Definition: item_cmpfunc.h:2276
Implements the comparison operator less than or equals (<=)
Definition: item_cmpfunc.h:1184
bool gc_subst_analyzer(uchar **) override
Analyzer function for GC substitution.
Definition: item_cmpfunc.h:1193
cond_result eq_cmp_result() const override
Definition: item_cmpfunc.h:1190
enum Functype rev_functype() const override
Definition: item_cmpfunc.h:1189
Item_func_le(Item *a, Item *b)
Definition: item_cmpfunc.h:1186
const char * func_name() const override
Definition: item_cmpfunc.h:1191
enum Functype functype() const override
Definition: item_cmpfunc.h:1188
Definition: item_cmpfunc.h:2348
Item_func_like(const POS &pos, Item *a, Item *b)
Definition: item_cmpfunc.h:2367
int escape() const
Returns the escape character.
Definition: item_cmpfunc.h:2391
int m_escape
The escape character (0 if no escape character).
Definition: item_cmpfunc.h:2355
enum Functype functype() const override
Definition: item_cmpfunc.h:2371
bool escape_was_used_in_parsing() const
Definition: item_cmpfunc.h:2388
Item_func_like(Item *a, Item *b, Item *escape_arg)
Definition: item_cmpfunc.h:2359
Item_func_like(Item *a, Item *b)
Definition: item_cmpfunc.h:2358
cond_result eq_cmp_result() const override
Result may be not equal with equal inputs if ESCAPE character is present.
Definition: item_cmpfunc.h:2374
const char * func_name() const override
Definition: item_cmpfunc.h:2375
bool escape_is_evaluated() const
Has the escape clause been evaluated? It only needs to be evaluated once per execution,...
Definition: item_cmpfunc.h:2402
Item_func_like(const POS &pos, Item *a, Item *b, Item *escape_arg)
Definition: item_cmpfunc.h:2363
Implements the comparison operator less than (<)
Definition: item_cmpfunc.h:1236
Item_func_lt(Item *a, Item *b)
Definition: item_cmpfunc.h:1238
cond_result eq_cmp_result() const override
Definition: item_cmpfunc.h:1242
enum Functype functype() const override
Definition: item_cmpfunc.h:1240
bool gc_subst_analyzer(uchar **) override
Analyzer function for GC substitution.
Definition: item_cmpfunc.h:1245
enum Functype rev_functype() const override
Definition: item_cmpfunc.h:1241
const char * func_name() const override
Definition: item_cmpfunc.h:1243
Wrapper class when MATCH function is used in WHERE clause.
Definition: item_cmpfunc.h:765
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 the filter contribution that is relevant for table 'filter_for_table' for this item.
Definition: item_cmpfunc.h:777
Item_func_match_predicate(Item *a)
Definition: item_cmpfunc.h:767
const char * func_name() const override
Definition: item_cmpfunc.h:771
longlong val_int() override
Definition: item_cmpfunc.cc:7114
enum Functype functype() const override
Definition: item_cmpfunc.h:770
void print(const THD *thd, String *str, enum_query_type query_type) const override
This method is used for to:
Definition: item_cmpfunc.h:772
Implements the comparison operator not equals (<>)
Definition: item_cmpfunc.h:1256
enum Functype rev_functype() const override
Definition: item_cmpfunc.h:1261
cond_result eq_cmp_result() const override
Definition: item_cmpfunc.h:1262
const char * func_name() const override
Definition: item_cmpfunc.h:1264
optimize_type select_optimize(const THD *) override
Definition: item_cmpfunc.h:1263
Item_func_ne(Item *a, Item *b)
Definition: item_cmpfunc.h:1258
enum Functype functype() const override
Definition: item_cmpfunc.h:1260
Definition: item_cmpfunc.h:970
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_cmpfunc.h:975
Item * truth_transformer(THD *, Bool_test) override
Apply NOT transformation to the item and return a new one.
Definition: item_cmpfunc.cc:6643
Item_func_nop_all(Item *a)
Definition: item_cmpfunc.h:972
const char * func_name() const override
Definition: item_cmpfunc.h:974
longlong val_int() override
Special NOP (No OPeration) for ALL subquery.
Definition: item_cmpfunc.cc:433
Definition: item_cmpfunc.h:915
bool empty_underlying_subquery()
Definition: item_cmpfunc.cc:397
bool abort_on_null
Definition: item_cmpfunc.h:920
void print(const THD *thd, String *str, enum_query_type query_type) const override
This method is used for to:
Definition: item_cmpfunc.cc:416
const char * func_name() const override
Definition: item_cmpfunc.h:937
Item_subselect * subselect
Definition: item_cmpfunc.h:919
Item * truth_transformer(THD *, Bool_test) override
Apply NOT transformation to the item and return a new one.
Definition: item_cmpfunc.cc:6654
longlong val_int() override
special NOT for ALL subquery.
Definition: item_cmpfunc.cc:383
void set_subselect(Item_subselect *item)
Definition: item_cmpfunc.h:942
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_cmpfunc.h:943
void set_sum_test(Item_sum_hybrid *item)
Definition: item_cmpfunc.h:940
bool show
Definition: item_cmpfunc.h:923
void apply_is_true() override
Apply the IS TRUE truth property, meaning that an UNKNOWN result and a FALSE result are treated the s...
Definition: item_cmpfunc.h:932
enum Functype functype() const override
Definition: item_cmpfunc.h:936
void set_sub_test(Item_maxmin_subselect *item)
Definition: item_cmpfunc.h:941
bool ignore_unknown() const
Treat UNKNOWN result like FALSE because callers see no difference.
Definition: item_cmpfunc.h:934
Item_sum_hybrid * test_sum_item
Definition: item_cmpfunc.h:917
Item_func_not_all(Item *a)
Definition: item_cmpfunc.h:925
Item_maxmin_subselect * test_sub_item
Definition: item_cmpfunc.h:918
Definition: item_cmpfunc.h:735
Item * truth_transformer(THD *, Bool_test) override
Apply NOT transformation to the item and return a new one.
Definition: item_cmpfunc.cc:6576
enum Functype functype() const override
Definition: item_cmpfunc.h:741
const char * func_name() const override
Definition: item_cmpfunc.h:742
longlong val_int() override
Definition: item_cmpfunc.cc:351
Item_func_not(Item *a)
Definition: item_cmpfunc.h:737
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 the filter contribution that is relevant for table 'filter_for_table' for this item.
Definition: item_cmpfunc.cc:325
void print(const THD *thd, String *str, enum_query_type query_type) const override
This method is used for to:
Definition: item_cmpfunc.cc:372
Item_func_not(const POS &pos, Item *a)
Definition: item_cmpfunc.h:738
Definition: item_cmpfunc.h:1536
enum_field_types default_data_type() const override
Get the default data (output) type for the specific item.
Definition: item_cmpfunc.h:1550
enum Functype functype() const override
Definition: item_cmpfunc.h:1556
Item_result result_type() const override
Definition: item_cmpfunc.h:1549
bool is_bool_func() const override
This is a workaround for the broken inheritance hierarchy: this should inherit from Item_func instead...
Definition: item_cmpfunc.h:1571
void print(const THD *thd, String *str, enum_query_type query_type) const override
This method is used for to:
Definition: item_cmpfunc.h:1561
enum Item_result cached_result_type
Definition: item_cmpfunc.h:1537
Item_func_nullif(const POS &pos, Item *a, Item *b)
Definition: item_cmpfunc.h:1540
const char * func_name() const override
Definition: item_cmpfunc.h:1555
uint decimal_precision() const override
Definition: item_cmpfunc.h:1559
Definition: item_func.h:781
Definition: item_cmpfunc.h:1282
void negate()
Definition: item_cmpfunc.h:1297
bool ignore_unknown() const
Definition: item_cmpfunc.h:1299
bool subst_argument_checker(uchar **) override
Definition: item_cmpfunc.h:1306
Item * truth_transformer(THD *, Bool_test test) override
Informs an item that it is wrapped in a truth test, in case it wants to transforms itself to implemen...
Definition: item_cmpfunc.h:1300
bool pred_level
Definition: item_cmpfunc.h:1285
Item_func_opt_neg(const POS &pos, Item *a, Item *b, Item *c, bool is_negation)
Definition: item_cmpfunc.h:1287
void apply_is_true() override
Apply the IS TRUE truth property, meaning that an UNKNOWN result and a FALSE result are treated the s...
Definition: item_cmpfunc.h:1298
Item_func_opt_neg(const POS &pos, PT_item_list *list, bool is_negation)
Definition: item_cmpfunc.h:1291
bool negated
Definition: item_cmpfunc.h:1284
Internal function used by subquery to derived transformation to check if a subquery is scalar.
Definition: item_cmpfunc.h:1207
table_map get_initial_pseudo_tables() const override
We add RAND_TABLE_BIT to prevent moving this item from the JOIN condition: it might raise an error to...
Definition: item_cmpfunc.h:1228
const char * func_name() const override
Definition: item_cmpfunc.h:1211
bool is_valid_for_pushdown(uchar *arg) override
Redefine to avoid pushing into derived table.
Definition: item_cmpfunc.h:1213
Item_func_reject_if(Item *a)
Definition: item_cmpfunc.h:1209
Definition: item_cmpfunc.h:1361
void print(const THD *thd, String *str, enum_query_type query_type) const override
This method is used for to:
Definition: item_cmpfunc.h:1370
bool resolve_type(THD *thd) override
Resolve type-related information for this item, such as result field type, maximum size,...
Definition: item_cmpfunc.h:1376
const char * func_name() const override
Definition: item_cmpfunc.h:1367
Item_func_strcmp(const POS &pos, Item *a, Item *b)
Definition: item_cmpfunc.h:1363
enum Functype functype() const override
Definition: item_cmpfunc.h:1368
optimize_type select_optimize(const THD *) override
Definition: item_cmpfunc.h:1366
Definition: item_cmpfunc.h:817
bool fix_fields(THD *thd, Item **ref) override
Definition: item_cmpfunc.h:881
enum_trig_type
Definition: item_cmpfunc.h:819
@ FOUND_MATCH
This trigger type deactivates predicated from WHERE condition when no row satisfying the join conditi...
Definition: item_cmpfunc.h:834
@ IS_NOT_NULL_COMPL
This trigger type deactivates join conditions when a row has been NULL-complemented.
Definition: item_cmpfunc.h:825
@ OUTER_FIELD_IS_NOT_NULL
In IN->EXISTS subquery transformation, new predicates are added: WHERE inner_field=outer_field OR inn...
Definition: item_cmpfunc.h:843
const char * func_name() const override
'<if>', to distinguish from the if() SQL function
Definition: item_cmpfunc.h:876
void add_trig_func_tables()
Definition: item_cmpfunc.h:886
void update_used_tables() override
Updates used tables, not null tables information and accumulates properties up the item tree,...
Definition: item_cmpfunc.h:895
enum enum_trig_type get_trig_type() const
Definition: item_cmpfunc.h:905
bool contains_only_equi_join_condition() const override
Whether this Item is an equi-join condition.
Definition: item_cmpfunc.cc:7469
Item_func_trig_cond(Item *a, bool *f, const JOIN *join, plan_idx idx, enum_trig_type trig_type_arg)
Definition: item_cmpfunc.h:866
table_map get_inner_tables() const
Get table_map of inner tables spanned by associated outer join operation.
Definition: item_cmpfunc.cc:7160
const JOIN * get_join() const
Definition: item_cmpfunc.h:904
void print(const THD *thd, String *str, enum_query_type query_type) const override
This method is used for to:
Definition: item_cmpfunc.cc:7180
void get_table_range(Table_ref **first_table, Table_ref **last_table) const
Get range of inner tables spanned by associated outer join operation.
Definition: item_cmpfunc.cc:7139
bool * get_trig_var()
Definition: item_cmpfunc.h:906
plan_idx idx() const
Definition: item_cmpfunc.h:910
plan_idx m_idx
Optional: if join!=NULL: index of table.
Definition: item_cmpfunc.h:852
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_cmpfunc.h:899
longlong val_int() override
Definition: item_cmpfunc.cc:7125
enum_trig_type trig_type
Type of trig_var; for printing.
Definition: item_cmpfunc.h:854
enum Functype functype() const override
Definition: item_cmpfunc.h:874
bool * trig_var
Pointer to trigger variable.
Definition: item_cmpfunc.h:848
enum_trig_type get_trig_type()
Definition: item_cmpfunc.h:907
const JOIN * m_join
Optional: JOIN of table which is the source of trig_var.
Definition: item_cmpfunc.h:850
A predicate that is "always true".
Definition: item_cmpfunc.h:376
bool val_bool() override
Definition: item_cmpfunc.h:381
enum Functype functype() const override
Definition: item_cmpfunc.h:386
Item_func_true()
Definition: item_cmpfunc.h:378
void print(const THD *, String *str, enum_query_type) const override
This method is used for to:
Definition: item_cmpfunc.h:383
Item_func_true(const POS &pos)
Definition: item_cmpfunc.h:379
const char * func_name() const override
Definition: item_cmpfunc.h:380
longlong val_int() override
Definition: item_cmpfunc.h:382
Item class, to represent X IS [NOT] (TRUE | FALSE) boolean predicates.
Definition: item_cmpfunc.h:408
Bool_test truth_test
The value we're testing for.
Definition: item_cmpfunc.h:467
Item_bool_func super
Definition: item_cmpfunc.h:409
longlong val_int() override
Definition: item_cmpfunc.cc:2087
void apply_is_true() override
Apply the IS TRUE truth property, meaning that an UNKNOWN result and a FALSE result are treated the s...
Definition: item_cmpfunc.h:451
enum Functype functype() const override
Definition: item_cmpfunc.h:423
void print(const THD *thd, String *str, enum_query_type query_type) const override
This method is used for to:
Definition: item_cmpfunc.cc:2077
Item_func_truth(const POS &pos, Item *a, Bool_test truth_test)
Definition: item_cmpfunc.h:425
bool resolve_type(THD *) override
Resolve type-related information for this item, such as result field type, maximum size,...
Definition: item_cmpfunc.cc:2071
Item * truth_transformer(THD *, Bool_test test) override
Informs an item that it is wrapped in a truth test, in case it wants to transforms itself to implemen...
Definition: item_cmpfunc.h:416
Item_func_truth(Item *a, Bool_test truth_test)
Definition: item_cmpfunc.h:438
const char * func_name() const override
Definition: item_cmpfunc.h:420
XOR inherits from Item_bool_func2 because it is not optimized yet.
Definition: item_cmpfunc.h:714
Item_bool_func2 super
Definition: item_cmpfunc.h:715
const char * func_name() const override
Definition: item_cmpfunc.h:723
longlong val_int() override
Make a logical XOR of the arguments.
Definition: item_cmpfunc.cc:6535
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 the filter contribution that is relevant for table 'filter_for_table' for this item.
Definition: item_cmpfunc.cc:6497
bool itemize(Parse_context *pc, Item **res) override
The same as contextualize() but with additional parameter.
Definition: item_cmpfunc.cc:6482
enum Functype functype() const override
Definition: item_cmpfunc.h:722
void apply_is_true() override
Apply the IS TRUE truth property, meaning that an UNKNOWN result and a FALSE result are treated the s...
Definition: item_cmpfunc.h:726
Item_func_xor(const POS &pos, Item *i1, Item *i2)
Definition: item_cmpfunc.h:719
Item_func_xor(Item *i1, Item *i2)
Definition: item_cmpfunc.h:718
Item * truth_transformer(THD *, Bool_test) override
XOR can be negated by negating one of the operands:
Definition: item_cmpfunc.cc:6594
Definition: item_func.h:93
my_decimal * val_decimal(my_decimal *) override
Definition: item_func.cc:808
void split_sum_func(THD *thd, Ref_item_array ref_item_array, mem_root_deque< Item * > *fields) override
See comments in Item_cmp_func::split_sum_func()
Definition: item_func.cc:701
Item ** args
Array of pointers to arguments.
Definition: item_func.h:100
void update_used_tables() override
Updates used tables, not null tables information and accumulates properties up the item tree,...
Definition: item_func.cc:708
void traverse_cond(Cond_traverser traverser, void *arg, traverse_order order) override
Definition: item_func.cc:620
Item * compile(Item_analyzer analyzer, uchar **arg_p, Item_transformer transformer, uchar *arg_t) override
Compile Item_func object with a processor and a transformer callback functions.
Definition: item_func.cc:678
Functype
Definition: item_func.h:178
@ TRIG_COND_FUNC
Definition: item_func.h:221
@ NOT_ALL_FUNC
Definition: item_func.h:218
@ LIKE_FUNC
Definition: item_func.h:189
@ FALSE_FUNC
Definition: item_func.h:300
@ NULLIF_FUNC
Definition: item_func.h:262
@ NOT_FUNC
Definition: item_func.h:217
@ XOR_FUNC
Definition: item_func.h:195
@ COND_OR_FUNC
Definition: item_func.h:194
@ COND_AND_FUNC
Definition: item_func.h:193
@ EQ_FUNC
Definition: item_func.h:180
@ TRUE_FUNC
Definition: item_func.h:299
@ IN_FUNC
Definition: item_func.h:197
@ LE_FUNC
Definition: item_func.h:184
@ MATCH_FUNC
Definition: item_func.h:188
@ LT_FUNC
Definition: item_func.h:183
@ ISNULL_FUNC
Definition: item_func.h:190
@ ISNOTNULLTEST_FUNC
Definition: item_func.h:200
@ MULT_EQUAL_FUNC
Definition: item_func.h:198
@ ISTRUTH_FUNC
Definition: item_func.h:192
@ BETWEEN
Definition: item_func.h:196
@ IF_FUNC
Definition: item_func.h:261
@ STRCMP_FUNC
Definition: item_func.h:298
@ NE_FUNC
Definition: item_func.h:182
@ GE_FUNC
Definition: item_func.h:185
@ EQUAL_FUNC
Definition: item_func.h:181
@ GT_FUNC
Definition: item_func.h:186
@ UNKNOWN_FUNC
Definition: item_func.h:179
@ ISNOTNULL_FUNC
Definition: item_func.h:191
@ CASE_FUNC
Definition: item_func.h:263
@ COALESCE_FUNC
Definition: item_func.h:292
void print_op(const THD *thd, String *str, enum_query_type query_type) const
Definition: item_func.cc:736
table_map used_tables_cache
Value used in calculation of result of used_tables()
Definition: item_func.h:164
optimize_type
Definition: item_func.h:302
@ OPTIMIZE_NONE
Definition: item_func.h:303
@ OPTIMIZE_EQUAL
Definition: item_func.h:307
@ OPTIMIZE_NULL
Definition: item_func.h:306
@ OPTIMIZE_KEY
Definition: item_func.h:304
@ OPTIMIZE_OP
Definition: item_func.h:305
bool resolve_type(THD *thd) override
Resolve type-related information for this item, such as result field type, maximum size,...
Definition: item_func.h:626
void print(const THD *thd, String *str, enum_query_type query_type) const override
This method is used for to:
Definition: item_func.cc:720
bool fix_fields(THD *, Item **ref) override
Definition: item_func.cc:394
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_func.cc:448
bool set_arguments(mem_root_deque< Item * > *list, bool context_free)
Copy arguments from list to args array.
Definition: item_func.cc:317
bool itemize(Parse_context *pc, Item **res) override
The same as contextualize() but with additional parameter.
Definition: item_func.cc:349
uint arg_count
How many arguments in 'args'.
Definition: item_func.h:123
Field * tmp_table_field(TABLE *t_arg) override
Definition: item_func.cc:766
bool eq(const Item *item, bool binary_cmp) const override
Definition: item_func.cc:750
table_map not_null_tables_cache
Value used in calculation of result of not_null_tables()
Definition: item_func.h:166
bool null_on_null
Affects how to determine that NULL argument implies a NULL function return.
Definition: item_func.h:157
bool walk(Item_processor processor, enum_walk walk, uchar *arg) override
Traverses a tree of Items in prefix and/or postfix order.
Definition: item_func.cc:609
Item * transform(Item_transformer transformer, uchar *arg) override
Transform an Item_func object with a transformer callback function.
Definition: item_func.cc:653
virtual bool resolve_type_inner(THD *)
Resolve type of function after all arguments have had their data types resolved.
Definition: item_func.h:458
uint allowed_arg_cols
Definition: item_func.h:162
Definition: item_cmpfunc.h:492
Item * transform(Item_transformer transformer, uchar *arg) override
Transform an Item_in_optimizer and its arguments with a callback function.
Definition: item_cmpfunc.cc:2390
bool is_null() override
The method allows to determine nullness of a complex expression without fully evaluating it,...
Definition: item_cmpfunc.cc:2371
Item * compile(Item_analyzer analyzer, uchar **arg_p, Item_transformer transformer, uchar *arg_t) override
Compile an Item_in_optimizer and its arguments with a callback function.
Definition: item_cmpfunc.cc:2432
void keep_top_level_cache()
Item_cache * cache
Definition: item_cmpfunc.h:494
const char * func_name() const override
Definition: item_cmpfunc.h:517
longlong val_int() override
The implementation of optimized <outer expression> [NOT] IN <subquery> predicates.
Definition: item_cmpfunc.cc:2284
int result_for_null_param
Stores the value of "NULL IN (SELECT ...)" for uncorrelated subqueries: UNKNOWN - "NULL in (SELECT ....
Definition: item_cmpfunc.h:503
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_cmpfunc.cc:2197
Item * left_original
Required to restore original "left" pointer after execution.
Definition: item_cmpfunc.h:496
Item_in_optimizer(Item *a, Item_in_subselect *b)
Definition: item_cmpfunc.h:506
bool fix_left(THD *thd, Item **ref)
Definition: item_cmpfunc.cc:2120
void update_used_tables() override
Updates used tables, not null tables information and accumulates properties up the item tree,...
Definition: item_cmpfunc.cc:2480
void cleanup() override
Called for every Item after use (preparation and execution).
Definition: item_cmpfunc.cc:2365
Item_cache ** get_cache()
Definition: item_cmpfunc.h:518
bool fix_fields(THD *, Item **) override
Definition: item_cmpfunc.cc:2160
void set_arg_resolve(THD *thd, uint i, Item *newp) override
Changes argument and maintains any necessary invariants.
Definition: item_cmpfunc.cc:2471
Representation of IN subquery predicates of the form "left_expr IN (SELECT ...)".
Definition: item_subselect.h:523
Definition: item_func.h:928
String * val_str(String *str) override
Definition: item_func.cc:1435
bool get_date(MYSQL_TIME *ltime, my_time_flags_t fuzzydate) override
Definition: item_func.h:976
double val_real() override
Definition: item_func.cc:1429
enum Item_result result_type() const override
Definition: item_func.h:980
bool get_time(MYSQL_TIME *ltime) override
Definition: item_func.h:979
Definition: item_cmpfunc.h:2293
void print(const THD *thd, String *str, enum_query_type query_type) const override
This method is used for to:
Definition: item_cmpfunc.h:2312
Item_in_subselect * owner
Definition: item_cmpfunc.h:2294
const char * func_name() const override
Definition: item_cmpfunc.h:2301
Item_is_not_null_test(Item_in_subselect *ow, Item *a)
Definition: item_cmpfunc.h:2297
table_map get_initial_pseudo_tables() const override
We add RAND_TABLE_BIT to prevent moving this item from HAVING to WHERE.
Definition: item_cmpfunc.h:2309
enum Functype functype() const override
Definition: item_cmpfunc.h:2299
Definition: item_subselect.h:368
Item with result field.
Definition: item.h:5566
Field * result_field
Definition: item.h:5568
void cleanup() override
Called for every Item after use (preparation and execution).
Definition: item.cc:10588
Item which stores (x,y,...) and ROW(x,y,...).
Definition: item_row.h:53
Definition: item_subselect.h:79
Abstract base class for the MIN and MAX aggregate functions.
Definition: item_sum.h:1529
Base class that is used to represent any kind of expression in a relational query.
Definition: item.h:850
virtual double val_real()=0
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:1947
void set_nullable(bool nullable)
Definition: item.h:3400
DTCollation collation
Character set and collation properties assigned for this Item.
Definition: item.h:3317
void set_data_type_bool()
Definition: item.h:1395
bool is_nullable() const
Definition: item.h:3399
void set_subquery()
Set the "has subquery" property.
Definition: item.h:3191
void fix_char_length(uint32 max_char_length_arg)
Definition: item.h:3148
virtual Item * equality_substitution_transformer(uchar *)
Definition: item.h:2790
virtual uint decimal_precision() const
Definition: item.cc:648
virtual bool val_json(Json_wrapper *result)
Get a JSON value from an Item.
Definition: item.h:1919
virtual longlong val_int()=0
virtual void print(const THD *, String *str, enum_query_type) const
This method is used for to:
Definition: item.h:2289
bool fixed
True if item has been resolved.
Definition: item.h:3388
bool null_value
True if item is null.
Definition: item.h:3425
Type
Definition: item.h:886
@ COND_ITEM
Definition: item.h:900
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:2360
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:2178
virtual TYPELIB * get_typelib() const
Get the typelib information for an item of type set or enum.
Definition: item.h:1647
bool unsigned_flag
Definition: item.h:3426
virtual bool aggregate_check_group(uchar *)
Definition: item.h:2720
virtual bool is_null()
The method allows to determine nullness of a complex expression without fully evaluating it,...
Definition: item.h:2341
virtual bool aggregate_check_distinct(uchar *)
Definition: item.h:2718
cond_result
Definition: item.h:919
@ COND_TRUE
Definition: item.h:919
@ COND_FALSE
Definition: item.h:919
@ COND_OK
Definition: item.h:919
traverse_order
Definition: item.h:921
Bool_test
< Modifier for result transformation
Definition: item.h:934
@ BOOL_NOT_FALSE
Definition: item.h:938
@ BOOL_NOT_TRUE
Definition: item.h:937
@ BOOL_IS_TRUE
Definition: item.h:934
@ BOOL_IS_FALSE
Definition: item.h:935
@ BOOL_NEGATED
Definition: item.h:941
uint32 max_length
Maximum length of result of evaluating this item, in number of bytes.
Definition: item.h:3335
virtual enum Type type() const =0
virtual uint cols() const
Definition: item.h:2955
Definition: sql_optimizer.h:125
A class that is capable of holding objects of any sub-type of Json_scalar.
Definition: json_dom.h:1892
Abstraction for accessing JSON values irrespective of whether they are (started out as) binary JSON v...
Definition: json_dom.h:1160
Definition: item_cmpfunc.h:613
Item_bool_func * create(Item *a, Item *b) const override
Definition: item_cmpfunc.cc:321
bool l_op() const override
Definition: item_cmpfunc.h:618
const char * symbol(bool invert) const override
This interface is only used by Item_allany_subselect.
Definition: item_cmpfunc.h:616
bool eqne_op() const override
Definition: item_cmpfunc.h:617
Abstract base class for the comparison operators =, <> and <=>.
Definition: item_cmpfunc.h:540
virtual Item_bool_func * create_scalar_predicate(Item *a, Item *b) const =0
Creates only an item tree node, without attempting to rewrite row constructors.
virtual Item_bool_func * combine(List< Item > list) const =0
Combines a list of conditions exp op exp.
bool eqne_op() const override
Definition: item_cmpfunc.h:543
Item_bool_func * create(Item *a, Item *b) const override
This implementation of the factory method also implements flattening of row constructors.
Definition: item_cmpfunc.cc:263
bool l_op() const override
Definition: item_cmpfunc.h:544
Definition: sql_list.h:619
Definition: sql_list.h:433
void sort(Node_cmp_func cmp)
Sort the list.
Definition: sql_list.h:533
T * head()
Definition: sql_list.h:459
Definition: item_cmpfunc.h:597
Item_bool_func * create(Item *a, Item *b) const override
Definition: item_cmpfunc.cc:313
bool l_op() const override
Definition: item_cmpfunc.h:602
bool eqne_op() const override
Definition: item_cmpfunc.h:601
const char * symbol(bool invert) const override
This interface is only used by Item_allany_subselect.
Definition: item_cmpfunc.h:600
A typesafe replacement for DYNAMIC_ARRAY.
Definition: mem_root_array.h:60
A typesafe replacement for DYNAMIC_ARRAY.
Definition: mem_root_array.h:425
Definition: item_cmpfunc.h:580
Item_bool_func * create_scalar_predicate(Item *a, Item *b) const override
Creates only an item tree node, without attempting to rewrite row constructors.
Definition: item_cmpfunc.cc:300
const char * symbol(bool invert) const override
This interface is only used by Item_allany_subselect.
Definition: item_cmpfunc.h:582
Item_bool_func * combine(List< Item > list) const override
Combines a list of conditions exp op exp.
Definition: item_cmpfunc.cc:305
Wrapper class for an Item list head, used to allocate Item lists in the parser in a context-independe...
Definition: parse_tree_helpers.h:104
Base class for parse tree nodes (excluding the Parse_tree_root hierarchy)
Definition: parse_tree_node_base.h:138
This class represents a query block, aka a query specification, which is a query consisting of a SELE...
Definition: sql_lex.h:1153
String class wrapper with a preallocated buffer of size buff_sz.
Definition: sql_string.h:629
Using this class is fraught with peril, and you need to be very careful when doing so.
Definition: sql_string.h:166
bool copy()
Definition: sql_string.cc:191
bool is_alloced() const
Definition: sql_string.h:414
For each client connection we create a separate thread with THD serving as a thread/connection descri...
Definition: sql_lexer_thd.h:33
uint elements
Definition: sql_list.h:135
Definition: item_cmpfunc.h:1919
longlong value
Definition: item_cmpfunc.h:1920
bool has_date
Distinguish between DATE/DATETIME/TIMESTAMP and TIME.
Definition: item_cmpfunc.h:1926
const Item * warn_item
Definition: item_cmpfunc.h:1924
Definition: item_cmpfunc.h:1954
my_decimal value
Definition: item_cmpfunc.h:1955
Definition: item_cmpfunc.h:1895
longlong value
Definition: item_cmpfunc.h:1896
void store_value(Item *item) override
Definition: item_cmpfunc.h:1899
int cmp(Item *arg) override
Definition: item_cmpfunc.h:1903
int compare(const cmp_item *ci) const override
Definition: item_cmpfunc.h:1907
Definition: item_cmpfunc.h:1869
unique_ptr_destroy_only< Json_wrapper > m_value
Cached JSON value to look up.
Definition: item_cmpfunc.h:1872
~cmp_item_json() override
String m_str_value
String buffer.
Definition: item_cmpfunc.h:1876
unique_ptr_destroy_only< Json_scalar_holder > m_holder
Cache for the value above.
Definition: item_cmpfunc.h:1874
Definition: item_cmpfunc.h:1935
int cmp(Item *arg) override
Definition: item_cmpfunc.h:1943
double value
Definition: item_cmpfunc.h:1936
void store_value(Item *item) override
Definition: item_cmpfunc.h:1939
int compare(const cmp_item *ci) const override
Definition: item_cmpfunc.h:1947
Definition: item_cmpfunc.h:2175
cmp_item_row(cmp_item_row &&other)
Definition: item_cmpfunc.h:2190
uint n
Definition: item_cmpfunc.h:2177
cmp_item_row(THD *thd, Item *item)
Definition: item_cmpfunc.h:2185
cmp_item_row()
Definition: item_cmpfunc.h:2180
cmp_item which stores a scalar (i.e. non-ROW).
Definition: item_cmpfunc.h:1835
void set_null_value(bool nv)
Definition: item_cmpfunc.h:1838
bool m_null_value
If stored value is NULL.
Definition: item_cmpfunc.h:1837
Definition: item_cmpfunc.h:1841
const String * value_res
Definition: item_cmpfunc.h:1843
int compare(const cmp_item *ci) const override
Definition: item_cmpfunc.h:1850
cmp_item_string(const CHARSET_INFO *cs)
Definition: item_cmpfunc.h:1848
void store_value(Item *item) override
Definition: item_cmpfunc.h:1855
const CHARSET_INFO * cmp_charset
Definition: item_cmpfunc.h:1845
StringBuffer< STRING_BUFFER_USUAL_SIZE > value
Definition: item_cmpfunc.h:1844
Definition: item_cmpfunc.h:1791
virtual void store_value(Item *item)=0
virtual int compare(const cmp_item *item) const =0
virtual int cmp(Item *item)=0
virtual ~cmp_item()=default
virtual cmp_item * make_same()=0
virtual void store_value_by_template(cmp_item *, Item *item)
Definition: item_cmpfunc.h:1829
Definition: item_cmpfunc.h:1703
Item_basic_constant * create_item(MEM_ROOT *mem_root) const override
Create an instance of Item_{type} (e.g.
Definition: item_cmpfunc.h:1707
in_datetime_as_longlong(MEM_ROOT *mem_root, uint elements)
Definition: item_cmpfunc.h:1705
Definition: item_cmpfunc.h:1731
Item_basic_constant * create_item(MEM_ROOT *mem_root) const override
Create an instance of Item_{type} (e.g.
Definition: item_cmpfunc.h:1738
Item * warn_item
An item used to issue warnings.
Definition: item_cmpfunc.h:1733
in_datetime(MEM_ROOT *mem_root, Item *warn_item_arg, uint elements)
Definition: item_cmpfunc.h:1736
Definition: item_cmpfunc.h:1767
Mem_root_array< my_decimal > base
Definition: item_cmpfunc.h:1768
in_decimal(MEM_ROOT *mem_root, uint elements)
Definition: item_cmpfunc.h:1771
void value_to_item(uint pos, Item_basic_constant *item) const override
Store the value at position pos into provided item object.
Definition: item_cmpfunc.h:1776
Item_basic_constant * create_item(MEM_ROOT *mem_root) const override
Create an instance of Item_{type} (e.g.
Definition: item_cmpfunc.h:1773
Definition: item_cmpfunc.h:1747
in_double(MEM_ROOT *mem_root, uint elements)
Definition: item_cmpfunc.h:1751
void value_to_item(uint pos, Item_basic_constant *item) const override
Store the value at position pos into provided item object.
Definition: item_cmpfunc.h:1756
Mem_root_array< double > base
Definition: item_cmpfunc.h:1748
Item_basic_constant * create_item(MEM_ROOT *mem_root) const override
Create an instance of Item_{type} (e.g.
Definition: item_cmpfunc.h:1753
Definition: item_cmpfunc.h:1670
Item_basic_constant * create_item(MEM_ROOT *mem_root) const override
Create an instance of Item_{type} (e.g.
Definition: item_cmpfunc.h:1683
in_longlong(MEM_ROOT *mem_root, uint elements)
Definition: item_cmpfunc.h:1681
void value_to_item(uint pos, Item_basic_constant *item) const override
Store the value at position pos into provided item object.
Definition: item_cmpfunc.h:1690
void set(uint pos, Item *item) override
Definition: item_cmpfunc.h:1698
Mem_root_array< packed_longlong > base
Definition: item_cmpfunc.h:1678
Definition: item_cmpfunc.h:2217
Mem_root_array< cmp_item_row * > base_pointers
Definition: item_cmpfunc.h:2221
Mem_root_array< cmp_item_row > base_objects
Definition: item_cmpfunc.h:2219
Item_basic_constant * create_item(MEM_ROOT *) const override
Create an instance of Item_{type} (e.g.
Definition: item_cmpfunc.h:2239
unique_ptr_destroy_only< cmp_item_row > tmp
Definition: item_cmpfunc.h:2218
bool is_row_result() const override
Definition: item_cmpfunc.h:2225
void value_to_item(uint, Item_basic_constant *) const override
Store the value at position pos into provided item object.
Definition: item_cmpfunc.h:2243
Definition: item_cmpfunc.h:1646
Mem_root_array< String * > base_pointers
Definition: item_cmpfunc.h:1651
Mem_root_array< String > base_objects
Definition: item_cmpfunc.h:1649
void value_to_item(uint pos, Item_basic_constant *item) const override
Store the value at position pos into provided item object.
Definition: item_cmpfunc.h:1659
const CHARSET_INFO * collation
Definition: item_cmpfunc.h:1652
String tmp
Definition: item_cmpfunc.h:1648
Item_basic_constant * create_item(MEM_ROOT *mem_root) const override
Create an instance of Item_{type} (e.g.
Definition: item_cmpfunc.h:1656
Definition: item_cmpfunc.h:1715
Item_basic_constant * create_item(MEM_ROOT *mem_root) const override
Create an instance of Item_{type} (e.g.
Definition: item_cmpfunc.h:1719
in_time_as_longlong(MEM_ROOT *mem_root, uint elements)
Definition: item_cmpfunc.h:1717
Definition: item_cmpfunc.h:1578
const uint m_size
Size of the vector.
Definition: item_cmpfunc.h:1580
virtual void set(uint pos, Item *item)=0
virtual void value_to_item(uint pos, Item_basic_constant *item) const =0
Store the value at position pos into provided item object.
virtual ~in_vector()=default
virtual bool find_item(Item *item)=0
Calls item->val_int() or item->val_str() etc.
virtual bool is_row_result() const
Definition: item_cmpfunc.h:1624
virtual bool compare_elems(uint pos1, uint pos2) const =0
Compare values number pos1 and pos2 for equality.
virtual Item_basic_constant * create_item(MEM_ROOT *mem_root) const =0
Create an instance of Item_{type} (e.g.
virtual void sort_array()=0
Sort the IN-list array, so we can do efficient lookup with binary_search.
in_vector(uint elements)
See Item_func_in::resolve_type() for why we need both count and used_count.
Definition: item_cmpfunc.h:1588
A (partial) implementation of std::deque allocating its blocks on a MEM_ROOT.
Definition: mem_root_deque.h:109
my_decimal class limits 'decimal_t' type to what we need in MySQL.
Definition: my_decimal.h:93
static MEM_ROOT mem_root
Definition: client_plugin.cc:109
static bool contains(const std::vector< std::string > &container, const std::string &file)
Definition: config_files.cc:40
enum_query_type
Query type constants (usable as bitmap flags).
Definition: enum_query_type.h:30
Fido Client Authentication nullptr
Definition: fido_client_plugin.cc:221
This file contains the field type.
enum_field_types
Column types for MySQL.
Definition: field_types.h:52
@ MYSQL_TYPE_VARCHAR
Definition: field_types.h:68
@ MYSQL_TYPE_TIME
Definition: field_types.h:64
@ MYSQL_TYPE_DATETIME
Definition: field_types.h:65
bool(Item::* Item_analyzer)(uchar **argp)
Definition: item.h:711
void(* Cond_traverser)(const Item *item, void *arg)
Definition: item.h:721
Item *(Item::* Item_transformer)(uchar *arg)
Type for transformers used by Item::transform and Item::compile.
Definition: item.h:720
static void ensure_multi_equality_fields_are_available(Item **args, int arg_idx, table_map available_tables, bool replace, bool *found)
Definition: item_cmpfunc.cc:7893
int(Arg_comparator::* arg_cmp_func)()
Definition: item_cmpfunc.h:73
Eq_creator eq_creator
Definition: mysqld.cc:1516
Ge_creator ge_creator
Definition: mysqld.cc:1521
Item * make_condition(Parse_context *pc, Item *item)
Ensure that all expressions involved in conditions are boolean functions.
Definition: item_cmpfunc.cc:5455
void find_and_adjust_equal_fields(Item *item, table_map available_tables, bool replace, bool *found)
Definition: item_cmpfunc.cc:7874
Lt_creator lt_creator
Definition: mysqld.cc:1520
bool get_mysql_time_from_str_no_warn(THD *thd, String *str, MYSQL_TIME *l_time, MYSQL_TIME_STATUS *status)
A minion of get_mysql_time_from_str, see its description.
Definition: item_cmpfunc.cc:872
Gt_creator gt_creator
Definition: mysqld.cc:1519
static const int UNKNOWN
Definition: item_cmpfunc.h:470
bool IsAnd(const Item *item)
Returns true if the item is a conjunction.
Definition: item_cmpfunc.h:2812
Ne_creator ne_creator
Definition: mysqld.cc:1517
Equal_creator equal_creator
Definition: mysqld.cc:1518
bool WalkConjunction(Item *condition, Func func)
Calls "func" on each term in "condition" if it's a conjunction (and recursively on any conjunction di...
Definition: item_cmpfunc.h:2825
bool get_mysql_time_from_str(THD *thd, String *str, enum_mysql_timestamp_type warn_type, const char *warn_name, MYSQL_TIME *l_time)
Parse date provided in a string to a MYSQL_TIME.
Definition: item_cmpfunc.cc:903
Le_creator le_creator
Definition: mysqld.cc:1522
longlong get_datetime_value(THD *thd, Item ***item_arg, Item **, const Item *warn_item, bool *is_null)
Retrieve correct DATETIME value from given item.
Definition: item_cmpfunc.cc:1510
Item * and_conds(Item *a, Item *b)
Builds condition: (a AND b) IS TRUE.
Definition: item_cmpfunc.h:2770
String * eval_string_arg(const CHARSET_INFO *to_cs, Item *arg, String *buffer)
Evaluate an argument string and return it in the desired character set.
Definition: item_func.cc:255
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:488
Header for compiler-dependent features.
It is interface module to fixed precision decimals library.
Some integer typedefs for easier portability.
unsigned long long int ulonglong
Definition: my_inttypes.h:55
unsigned char uchar
Definition: my_inttypes.h:51
long long int longlong
Definition: my_inttypes.h:54
uint16_t uint16
Definition: my_inttypes.h:64
uint64_t table_map
Definition: my_table_map.h:29
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:93
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:44
static bool replace
Definition: mysqlimport.cc:65
std::string str(const mysqlrouter::ConfigGenerator::Options::Endpoint &ep)
Definition: config_generator.cc:1063
Definition: commit_order_queue.h:33