MySQL  8.0.22
Source Code Documentation
Field_temporal_with_date Class Referenceabstract

Abstract class for types with date with optional time, with or without fractional part: DATE, DATETIME, DATETIME(N), TIMESTAMP, TIMESTAMP(N). More...

#include <field.h>

Inheritance diagram for Field_temporal_with_date:
Field_temporal Field Field_newdate Field_temporal_with_date_and_time Field_datetime Field_temporal_with_date_and_timef Field_timestamp Field_datetimef Field_timestampf

Public Member Functions

 Field_temporal_with_date (uchar *ptr_arg, uchar *null_ptr_arg, uchar null_bit_arg, uchar auto_flags_arg, const char *field_name_arg, uint8 int_length_arg, uint8 dec_arg)
 Constructor for Field_temporal. More...
 
bool send_to_protocol (Protocol *protocol) const override
 Send the value of this field over the protocol using the correct Protocol::store*() function which matches the type of the field. More...
 
type_conversion_status store_time (MYSQL_TIME *ltime, uint8 dec) final
 Store MYSQL_TIME value with the given amount of decimal digits into a field. More...
 
Stringval_str (String *, String *) const override
 
longlong val_time_temporal () const override
 Returns TIME value in packed longlong format. More...
 
longlong val_date_temporal () const override
 Returns DATE/DATETIME value in packed longlong format. More...
 
longlong val_time_temporal_at_utc () const override
 
longlong val_date_temporal_at_utc () const override
 
bool get_time (MYSQL_TIME *ltime) const final
 
type_conversion_status validate_stored_val (THD *thd) override
 Validate date value stored in the field. More...
 
- Public Member Functions inherited from Field_temporal
 Field_temporal (uchar *ptr_arg, uchar *null_ptr_arg, uchar null_bit_arg, uchar auto_flags_arg, const char *field_name_arg, uint32 len_arg, uint8 dec_arg)
 Constructor for Field_temporal. More...
 
Item_result result_type () const final
 
uint32 max_display_length () const final
 
bool str_needs_quotes () const final
 
uint is_equal (const Create_field *new_field) const final
 Whether a field being created is type-compatible with an existing one. More...
 
Item_result numeric_context_result_type () const final
 Returns Item_result type of a field when it appears in numeric context such as: SELECT time_column + 1; SELECT SUM(time_column); Examples: More...
 
enum Item_result cmp_type () const final
 
enum Derivation derivation () const final
 
uint repertoire () const final
 
const CHARSET_INFOcharset () const final
 
bool can_be_compared_as_longlong () const final
 
bool binary () const final
 
type_conversion_status store (const char *str, size_t len, const CHARSET_INFO *cs) final
 Store string into a date/time/datetime field. More...
 
type_conversion_status store_decimal (const my_decimal *decimal) final
 
type_conversion_status store (longlong nr, bool unsigned_val) override
 
type_conversion_status store (double nr) final
 
double val_real () const override
 
my_decimalval_decimal (my_decimal *decimal_value) const override
 
- Public Member Functions inherited from Field
 Field (const Field &)=default
 
void operator= (Field &)=delete
 
bool has_insert_default_general_value_expression () const
 Checks if the field is marked as having a general expression to generate default values. More...
 
bool has_insert_default_datetime_value_expression () const
 Checks if the field is marked as having a datetime value expression to generate default values on inserts. More...
 
bool has_update_default_datetime_value_expression () const
 Checks if the field is marked as having a datetime value expression to generate default values on updates. More...
 
ucharget_null_ptr ()
 
virtual void set_field_length (uint32 length)
 
bool is_flag_set (unsigned flag) const
 
void set_flag (unsigned flag)
 
void clear_flag (unsigned flag)
 
uint32 all_flags () const
 
virtual bool is_unsigned () const
 Whether the field is signed or not. More...
 
bool is_gcol () const
 
bool is_virtual_gcol () const
 
void set_hidden (dd::Column::enum_hidden_type hidden)
 Sets the hidden type for this field. More...
 
dd::Column::enum_hidden_type hidden () const
 
bool is_hidden_from_user () const
 
bool is_field_for_functional_index () const
 
 Field (uchar *ptr_arg, uint32 length_arg, uchar *null_ptr_arg, uchar null_bit_arg, uchar auto_flags_arg, const char *field_name_arg)
 This is used as a table name when the table structure is not set up. More...
 
virtual ~Field ()=default
 
void reset_warnings ()
 
void set_tmp_nullable ()
 Turn on temporary nullability for the field. More...
 
void reset_tmp_nullable ()
 Turn off temporary nullability for the field. More...
 
void reset_tmp_null ()
 Reset temporary NULL value for field. More...
 
void set_tmp_null ()
 Set field to temporary value NULL. More...
 
bool is_tmp_nullable () const
 
bool is_tmp_null () const
 
virtual type_conversion_status store_packed (longlong nr)
 Store a temporal value in packed longlong format into a field. More...
 
type_conversion_status store_time (MYSQL_TIME *ltime)
 Store MYSQL_TYPE value into a field when the number of fractional digits is not important or is not know. More...
 
type_conversion_status store (const char *to, size_t length, const CHARSET_INFO *cs, enum_check_fields check_level)
 
virtual longlong val_int () const =0
 
longlong val_temporal_by_field_type () const
 Returns "native" packed longlong representation of a TIME or DATE/DATETIME field depending on field type. More...
 
Stringval_str (String *str) const
 
Stringval_int_as_str (String *val_buffer, bool unsigned_flag) const
 Interpret field value as an integer but return the result as a string. More...
 
virtual Item_result cast_to_int_type () const
 
bool gcol_expr_is_equal (const Create_field *field) const
 Check whether generated columns' expressions are the same. More...
 
virtual bool eq (const Field *field) const
 
virtual bool eq_def (const Field *field) const
 
virtual uint32 pack_length () const
 
virtual uint32 pack_length_in_rec () const
 
virtual bool compatible_field_size (uint metadata, Relay_log_info *, uint16, int *order) const
 Check to see if field size is compatible with destination. More...
 
virtual uint pack_length_from_metadata (uint field_metadata) const
 
virtual uint row_pack_length () const
 
int save_field_metadata (uchar *first_byte)
 
virtual uint32 data_length (ptrdiff_t row_offset=0) const
 
virtual uint32 max_data_length () const
 Get the maximum size of the data in packed format. More...
 
virtual type_conversion_status reset ()
 
virtual bool get_timestamp (struct timeval *tm, int *warnings) const
 Returns a UTC component in struct timeval format. More...
 
virtual void store_timestamp (const timeval *)
 Stores a timestamp value in timeval format in a field. More...
 
virtual void set_default ()
 
void evaluate_insert_default_function ()
 Evaluates the INSERT default function and stores the result in the field. More...
 
void evaluate_update_default_function ()
 Evaluates the UPDATE default function, if one exists, and stores the result in the record buffer. More...
 
virtual bool zero_pack () const
 
virtual enum ha_base_keytype key_type () const
 
virtual uint32 key_length () const
 
virtual enum_field_types type () const =0
 
virtual enum_field_types real_type () const
 
virtual enum_field_types binlog_type () const
 
int cmp (const uchar *str) const
 
virtual int cmp_max (const uchar *a, const uchar *b, uint max_len) const
 
virtual int cmp (const uchar *, const uchar *) const =0
 
virtual int cmp_binary (const uchar *a, const uchar *b, uint32 max_length=~0L) const
 
virtual int cmp_offset (ptrdiff_t row_offset) const
 
virtual int cmp_binary_offset (ptrdiff_t row_offset) const
 
virtual int key_cmp (const uchar *a, const uchar *b) const
 
virtual int key_cmp (const uchar *str, uint length) const
 
virtual uint decimals () const
 
virtual bool is_text_key_type () const
 
virtual void sql_type (String &str) const =0
 
bool is_null (ptrdiff_t row_offset=0) const
 Check whether the full table's row is NULL or the Field has value NULL. More...
 
bool is_real_null (ptrdiff_t row_offset=0) const
 Check whether the Field has value NULL (temporary or actual). More...
 
bool is_null_in_record (const uchar *record) const
 Check if the Field has value NULL or the record specified by argument has value NULL for this Field. More...
 
void set_null (ptrdiff_t row_offset=0)
 Set field to value NULL. More...
 
void set_notnull (ptrdiff_t row_offset=0)
 Set field to value NOT NULL. More...
 
type_conversion_status check_constraints (int mysql_errno)
 Check NOT NULL constraint on the field after temporary nullability is disabled. More...
 
void set_check_for_truncated_fields (enum_check_fields check_for_truncated_fields)
 Remember the value of THD::check_for_truncated_fields to handle possible NOT-NULL constraint errors after BEFORE-trigger execution is finished. More...
 
bool is_nullable () const
 
uint null_offset (const uchar *record) const
 
uint null_offset () const
 
void set_null_ptr (uchar *p_null_ptr, uint p_null_bit)
 
virtual void make_send_field (Send_field *send_field) const
 Populates a Send_field object with metadata about the column represented by this Field object. More...
 
virtual size_t make_sort_key (uchar *buff, size_t length) const =0
 Writes a copy of the current value in the record buffer, suitable for sorting using byte-by-byte comparison. More...
 
virtual bool optimize_range (uint idx, uint part) const
 
virtual void mem_free ()
 
virtual Fieldnew_field (MEM_ROOT *root, TABLE *new_table) const
 
Fieldnew_field (MEM_ROOT *root, TABLE *new_table, uchar *new_ptr, uchar *new_null_ptr, uint new_null_bit) const
 
virtual Fieldnew_key_field (MEM_ROOT *root, TABLE *new_table, uchar *new_ptr, uchar *new_null_ptr, uint new_null_bit) const
 
Fieldnew_key_field (MEM_ROOT *root, TABLE *new_table, uchar *new_ptr) const
 
virtual Fieldclone (MEM_ROOT *mem_root) const =0
 Makes a shallow copy of the Field object. More...
 
void move_field (uchar *ptr_arg, uchar *null_ptr_arg, uchar null_bit_arg)
 
virtual void move_field_offset (ptrdiff_t ptr_diff)
 
virtual void get_image (uchar *buff, size_t length, const CHARSET_INFO *) const
 
virtual void set_image (const uchar *buff, size_t length, const CHARSET_INFO *)
 
virtual size_t get_key_image (uchar *buff, size_t length, imagetype type) const
 
virtual void set_key_image (const uchar *buff, size_t length)
 
longlong val_int_offset (ptrdiff_t row_offset)
 
longlong val_int (uchar *new_ptr)
 
Stringval_str (String *str, uchar *new_ptr)
 
virtual ucharpack (uchar *to, const uchar *from, size_t max_length) const
 Pack the field into a format suitable for storage and transfer. More...
 
ucharpack (uchar *to) const
 
virtual const ucharunpack (uchar *to, const uchar *from, uint param_data)
 Unpack a field from row data. More...
 
const ucharunpack (const uchar *from)
 
virtual ucharpack_with_metadata_bytes (uchar *to, const uchar *from, uint max_length) const
 This function does the same thing as pack(), except for the difference that max_length does not mean the number of bytes in the output, but the maximum field length from the input (which must be exactly field->max_field_length()). More...
 
virtual bool pack_diff (uchar **to, ulonglong value_options) const
 Write the field for the binary log in diff format. More...
 
virtual uint max_packed_col_length () const
 This is a wrapper around pack_length() used by filesort() to determine how many bytes we need for packing "addon fields". More...
 
uint offset (uchar *record) const
 
void copy_data (ptrdiff_t src_record_offset)
 
virtual bool get_date (MYSQL_TIME *ltime, my_time_flags_t fuzzydate) const
 
const CHARSET_INFOcharset_for_protocol () const
 
virtual const CHARSET_INFOsort_charset () const
 
virtual bool has_charset () const
 
virtual bool match_collation_to_optimize_range () const
 
virtual void set_derivation (enum Derivation)
 
bool set_warning (Sql_condition::enum_severity_level level, unsigned int code, int cut_increment)
 Produce warning or note about data saved into field. More...
 
bool set_warning (Sql_condition::enum_severity_level level, uint code, int cut_increment, const char *view_db, const char *view_name)
 Produce warning or note about data saved into field. More...
 
bool warn_if_overflow (int op_result)
 Process decimal library return codes and issue warnings for overflow and truncation. More...
 
virtual void init (TABLE *table_arg)
 
longlong convert_decimal2longlong (const my_decimal *val, bool unsigned_flag, bool *has_overflow)
 Conversion from decimal to longlong. More...
 
virtual uint32 char_length () const
 
virtual geometry_type get_geometry_type () const
 
void dbug_print () const
 
ha_storage_media field_storage_type () const
 
void set_storage_type (ha_storage_media storage_type_arg)
 
column_format_type column_format () const
 
void set_column_format (column_format_type column_format_arg)
 
virtual void hash (ulong *nr, ulong *nr2) const
 
virtual ulonglong get_max_int_value () const
 Get the upper limit of the MySQL integral and floating-point type. More...
 
virtual const uchardata_ptr () const
 Return a const pointer to the actual data in the record buffer. More...
 
const ucharfield_ptr () const
 Return a const pointer to where the field is stored in the record buffer. More...
 
ucharfield_ptr ()
 Return a pointer to where the field is stored in the record buffer. More...
 
void set_field_ptr (uchar *ptr_arg)
 
virtual bool is_updatable () const
 Checks whether a string field is part of write_set. More...
 
bool is_part_of_actual_key (THD *thd, uint cur_index, KEY *cur_index_info) const
 Check whether field is part of the index taking the index extensions flag into account. More...
 
Key_map get_covering_prefix_keys () const
 Get covering prefix keys. More...
 
virtual bool is_array () const
 Whether the field is a typed array. More...
 
virtual uint32 get_length_bytes () const
 Return number of bytes the field's length takes. More...
 
bool handle_old_value () const
 Whether field's old valued have to be handled. More...
 
virtual void set_field_index (uint16 field_index)
 Sets field index. More...
 
uint16 field_index () const
 Returns field index. More...
 

Protected Member Functions

virtual bool get_date_internal (MYSQL_TIME *ltime) const =0
 Low level function to get value into MYSQL_TIME, without checking for being valid. More...
 
virtual bool get_date_internal_at_utc (MYSQL_TIME *ltime) const
 
bool get_internal_check_zero (MYSQL_TIME *ltime, my_time_flags_t fuzzydate) const
 Get value into MYSQL_TIME and check TIME_NO_ZERO_DATE flag. More...
 
type_conversion_status convert_number_to_TIME (longlong nr, bool unsigned_val, int nanoseconds, MYSQL_TIME *ltime, int *warning) final
 Convert a number with fractional part with nanosecond precision into MYSQL_TIME, according to the field type. More...
 
bool convert_str_to_TIME (const char *str, size_t len, const CHARSET_INFO *cs, MYSQL_TIME *ltime, MYSQL_TIME_STATUS *status) final
 Convert a string to MYSQL_TIME, according to the field type. More...
 
type_conversion_status store_internal_adjust_frac (MYSQL_TIME *ltime, int *warnings) final
 Low level routine to store a MYSQL_TIME value into a field with rounding/truncation according to the field decimals() value and sql_mode. More...
 
- Protected Member Functions inherited from Field_temporal
virtual type_conversion_status store_internal (const MYSQL_TIME *ltime, int *error)=0
 Low level routine to store a MYSQL_TIME value into a field. More...
 
type_conversion_status store_lldiv_t (const lldiv_t *lld, int *warning)
 Store a temporal value in lldiv_t into a field, with rounding according to the field decimals() value. More...
 
longlong convert_number_to_datetime (longlong nr, bool unsigned_val, MYSQL_TIME *ltime, int *warnings)
 Convert an integer number into MYSQL_TIME, according to the field type. More...
 
bool set_warnings (const ErrConvString &str, int warnings)
 Set warnings from a warning vector. More...
 
virtual my_time_flags_t date_flags (const THD *thd) const
 Flags that are passed as "flag" argument to check_date(), number_to_datetime(), str_to_datetime(). More...
 
my_time_flags_t date_flags () const
 Flags that are passed as "flag" argument to check_date(), number_to_datetime(), str_to_datetime(). More...
 
bool set_datetime_warning (Sql_condition::enum_severity_level level, uint code, const ErrConvString &val, enum_mysql_timestamp_type ts_type, int truncate_increment)
 Produce warning or note about double datetime data saved into field. More...
 
- Protected Member Functions inherited from Field
ucharpack_int16 (uchar *to, const uchar *from, size_t max_length) const
 
const ucharunpack_int16 (uchar *to, const uchar *from) const
 
ucharpack_int24 (uchar *to, const uchar *from, size_t max_length) const
 
const ucharunpack_int24 (uchar *to, const uchar *from) const
 
ucharpack_int32 (uchar *to, const uchar *from, size_t max_length) const
 
const ucharunpack_int32 (uchar *to, const uchar *from) const
 
ucharpack_int64 (uchar *to, const uchar *from, size_t max_length) const
 
const ucharunpack_int64 (uchar *to, const uchar *from) const
 

Additional Inherited Members

- Public Types inherited from Field
enum  enum_auto_flags {
  NONE = 0, NEXT_NUMBER = 1, DEFAULT_NOW = 2, ON_UPDATE_NOW = 4,
  GENERATED_FROM_EXPRESSION = 8
}
 Flags for Field::auto_flags / Create_field::auto_flags bitmaps. More...
 
enum  geometry_type {
  GEOM_GEOMETRY = 0, GEOM_POINT = 1, GEOM_LINESTRING = 2, GEOM_POLYGON = 3,
  GEOM_MULTIPOINT = 4, GEOM_MULTILINESTRING = 5, GEOM_MULTIPOLYGON = 6, GEOM_GEOMETRYCOLLECTION = 7
}
 
enum  imagetype { itRAW, itMBR }
 
- Static Public Member Functions inherited from Field
static bool type_can_have_key_part (enum_field_types)
 Check whether a field type can be partially indexed by a key. More...
 
static enum_field_types field_type_merge (enum_field_types, enum_field_types)
 Return type of which can carry value of both given types in UNION result. More...
 
static Item_result result_merge_type (enum_field_types)
 Detect Item_result by given field type of UNION merge result. More...
 
- Public Attributes inherited from Field
TABLEtable
 
const char * orig_db_name {nullptr}
 Pointer to original database name, only non-NULL for a temporary table. More...
 
const char * orig_table_name {nullptr}
 Pointer to original table name, only non-NULL for a temporary table. More...
 
const char ** table_name
 
const char * field_name
 
LEX_CSTRING comment
 
Key_map key_start
 
Key_map part_of_key
 Keys that includes this field except of prefix keys. More...
 
Key_map part_of_prefixkey
 Prefix keys. More...
 
Key_map part_of_sortkey
 
Key_map part_of_key_not_extended
 All keys that include this field, but not extended by the storage engine to include primary key columns. More...
 
uint32 field_length
 
uchar null_bit
 
uchar auto_flags
 Bitmap of flags indicating if field value is auto-generated by default and/or on update, and in which way. More...
 
bool is_created_from_null_item
 If true, this field was created in create_tmp_field_from_item from a NULL value. More...
 
bool m_indexed
 True if this field belongs to some index (unlike part_of_key, the index might have only a prefix). More...
 
LEX_CSTRING m_engine_attribute = EMPTY_CSTR
 
LEX_CSTRING m_secondary_engine_attribute = EMPTY_CSTR
 
Value_generatorgcol_info {nullptr}
 
bool stored_in_db
 
Value_generatorm_default_val_expr {nullptr}
 Holds the expression to be used to generate default values. More...
 
- Static Public Attributes inherited from Field
static constexpr size_t MAX_VARCHAR_WIDTH {65535}
 
static constexpr size_t MAX_TINY_BLOB_WIDTH {255}
 
static constexpr size_t MAX_SHORT_BLOB_WIDTH {65535}
 
static constexpr size_t MAX_MEDIUM_BLOB_WIDTH {16777215}
 
static constexpr size_t MAX_LONG_BLOB_WIDTH {4294967295}
 
- Static Protected Member Functions inherited from Field_temporal
static uint8 normalize_dec (uint8 dec_arg)
 Adjust number of decimal digits from DECIMAL_NOT_SPECIFIED to DATETIME_MAX_DECIMALS. More...
 
- Protected Attributes inherited from Field_temporal
uint8 dec
 
- Protected Attributes inherited from Field
ucharptr
 Holds the position to the field in record. More...
 
- Static Protected Attributes inherited from Field
static uchar dummy_null_buffer = ' '
 

Detailed Description

Abstract class for types with date with optional time, with or without fractional part: DATE, DATETIME, DATETIME(N), TIMESTAMP, TIMESTAMP(N).

Constructor & Destructor Documentation

◆ Field_temporal_with_date()

Field_temporal_with_date::Field_temporal_with_date ( uchar ptr_arg,
uchar null_ptr_arg,
uchar  null_bit_arg,
uchar  auto_flags_arg,
const char *  field_name_arg,
uint8  int_length_arg,
uint8  dec_arg 
)
inline

Constructor for Field_temporal.

Parameters
ptr_argSee Field definition
null_ptr_argSee Field definition
null_bit_argSee Field definition
auto_flags_argSee Field definition
field_name_argSee Field definition
int_length_argNumber of characters in the integer part.
dec_argNumber of second fraction digits, 0..6.

Member Function Documentation

◆ convert_number_to_TIME()

type_conversion_status Field_temporal_with_date::convert_number_to_TIME ( longlong  nr,
bool  unsigned_val,
int  nanoseconds,
MYSQL_TIME ltime,
int *  warning 
)
finalprotectedvirtual

Convert a number with fractional part with nanosecond precision into MYSQL_TIME, according to the field type.

Nanoseconds are rounded to milliseconds and added to ltime->second_part.

Parameters
[in]nrNumber
[in]unsigned_valSIGNED/UNSIGNED flag
[in]nanosecondsFractional part in nanoseconds
[out]ltimeThe value is stored here
[in,out]warningWarnings found during execution
Returns
Conversion status
Return values
falseOn success
trueOn error

Implements Field_temporal.

◆ convert_str_to_TIME()

bool Field_temporal_with_date::convert_str_to_TIME ( const char *  str,
size_t  len,
const CHARSET_INFO cs,
MYSQL_TIME ltime,
MYSQL_TIME_STATUS status 
)
finalprotectedvirtual

Convert a string to MYSQL_TIME, according to the field type.

Parameters
[in]strString
[in]lenString length
[in]csString character set
[out]ltimeThe value is stored here
[out]statusConversion status
Return values
falseConversion went fine, ltime contains a valid time
trueConversion failed, ltime was reset and contains nothing

Implements Field_temporal.

◆ get_date_internal()

virtual bool Field_temporal_with_date::get_date_internal ( MYSQL_TIME ltime) const
protectedpure virtual

Low level function to get value into MYSQL_TIME, without checking for being valid.

Implemented in Field_datetimef, Field_datetime, Field_newdate, Field_timestampf, and Field_timestamp.

◆ get_date_internal_at_utc()

virtual bool Field_temporal_with_date::get_date_internal_at_utc ( MYSQL_TIME ltime) const
inlineprotectedvirtual

Reimplemented in Field_timestampf, and Field_timestamp.

◆ get_internal_check_zero()

bool Field_temporal_with_date::get_internal_check_zero ( MYSQL_TIME ltime,
my_time_flags_t  fuzzydate 
) const
protected

Get value into MYSQL_TIME and check TIME_NO_ZERO_DATE flag.

Return values
Trueon error: we get a zero value but flags disallow zero dates.
Falseon success.

◆ get_time()

bool Field_temporal_with_date::get_time ( MYSQL_TIME ltime) const
inlinefinalvirtual

Reimplemented from Field.

◆ send_to_protocol()

bool Field_temporal_with_date::send_to_protocol ( Protocol protocol) const
overridevirtual

Send the value of this field over the protocol using the correct Protocol::store*() function which matches the type of the field.

Reimplemented from Field.

Reimplemented in Field_newdate.

◆ store_internal_adjust_frac()

type_conversion_status Field_temporal_with_date::store_internal_adjust_frac ( MYSQL_TIME ltime,
int *  warnings 
)
finalprotectedvirtual

Low level routine to store a MYSQL_TIME value into a field with rounding/truncation according to the field decimals() value and sql_mode.

Parameters
[in]ltimeMYSQL_TIME value.
[out]warningsError flag vector, set in case of error.
Return values
falseIn case of success.
trueIn case of error.

Implements Field_temporal.

◆ store_time()

type_conversion_status Field_temporal_with_date::store_time ( MYSQL_TIME ltime,
uint8  dec_arg 
)
finalvirtual

Store MYSQL_TIME value with the given amount of decimal digits into a field.

This is called when storing a date in a string.

Note, the "dec" parameter represents number of digits of the Item that previously created the MYSQL_TIME value. It's needed when we store the value into a CHAR/VARCHAR/TEXT field to display the proper amount of fractional digits. For other field types the "dec" value does not matter and is ignored.

Parameters
ltimeTime, date or datetime value.
dec_argNumber of decimals in ltime.
Return values
falseon success
trueon error
Note
Needs to be changed if/when we want to support different time formats.

Reimplemented from Field.

◆ val_date_temporal()

longlong Field_temporal_with_date::val_date_temporal ( ) const
overridevirtual

Returns DATE/DATETIME value in packed longlong format.

This method should not be called for non-temporal types. Temporal field types override the default method.

Reimplemented from Field.

Reimplemented in Field_datetimef, and Field_newdate.

◆ val_date_temporal_at_utc()

longlong Field_temporal_with_date::val_date_temporal_at_utc ( ) const
overridevirtual

Reimplemented from Field.

◆ val_str()

String * Field_temporal_with_date::val_str ( String val_buffer,
String  
) const
overridevirtual

Implements Field.

Reimplemented in Field_datetime, and Field_newdate.

◆ val_time_temporal()

longlong Field_temporal_with_date::val_time_temporal ( ) const
overridevirtual

Returns TIME value in packed longlong format.

This method should not be called for non-temporal types. Temporal field types override the default method.

Reimplemented from Field.

Reimplemented in Field_newdate.

◆ val_time_temporal_at_utc()

longlong Field_temporal_with_date::val_time_temporal_at_utc ( ) const
overridevirtual

Reimplemented from Field.

◆ validate_stored_val()

type_conversion_status Field_temporal_with_date::validate_stored_val ( THD thd)
overridevirtual

Validate date value stored in the field.

Now we check whether date value is zero or has zero in date or not and sets warning/error message appropriately(depending on the sql_mode).

Reimplemented from Field.

Reimplemented in Field_timestampf, and Field_timestamp.


The documentation for this class was generated from the following files: