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MySQL 5.6.14 Source Code Document
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MySQL 5.6.14 Source Code Document
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#include <field.h>
Public Member Functions | |
| Field_temporal_with_date_and_timef (uchar *ptr_arg, uchar *null_ptr_arg, uchar null_bit_arg, enum utype unireg_check_arg, const char *field_name_arg, uint8 dec_arg) | |
| Field_temporal_with_date_and_timef (bool maybe_null_arg, const char *field_name_arg, uint8 dec_arg) | |
| uint | decimals () const |
| const CHARSET_INFO * | sort_charset () const |
| void | make_sort_key (uchar *to, uint length) |
| int | cmp (const uchar *a_ptr, const uchar *b_ptr) |
| uint | row_pack_length () const |
| double | val_real () |
| longlong | val_int () |
| my_decimal * | val_decimal (my_decimal *decimal_value) |
 Public Member Functions inherited from Field_temporal_with_date_and_time | |
| Field_temporal_with_date_and_time (uchar *ptr_arg, uchar *null_ptr_arg, uchar null_bit_arg, enum utype unireg_check_arg, const char *field_name_arg, uint8 dec_arg) | |
| void | store_timestamp (const struct timeval *tm) |
| Public Member Functions inherited from Field_temporal_with_date | |
| Field_temporal_with_date (uchar *ptr_arg, uchar *null_ptr_arg, uchar null_bit_arg, enum utype unireg_check_arg, const char *field_name_arg, uint8 int_length_arg, uint8 dec_arg) | |
| Field_temporal_with_date (bool maybe_null_arg, const char *field_name_arg, uint int_length_arg, uint8 dec_arg) | |
| bool | send_binary (Protocol *protocol) |
| type_conversion_status | store_time (MYSQL_TIME *ltime, uint8 dec) |
| String * | val_str (String *, String *) |
| longlong | val_time_temporal () |
| longlong | val_date_temporal () |
| bool | get_time (MYSQL_TIME *ltime) |
| virtual type_conversion_status | validate_stored_val (THD *thd) |
| Public Member Functions inherited from Field_temporal | |
| Field_temporal (uchar *ptr_arg, uchar *null_ptr_arg, uchar null_bit_arg, enum utype unireg_check_arg, const char *field_name_arg, uint32 len_arg, uint8 dec_arg) | |
| Field_temporal (bool maybe_null_arg, const char *field_name_arg, uint32 len_arg, uint8 dec_arg) | |
| virtual Item_result | result_type () const |
| virtual uint32 | max_display_length () |
| virtual bool | str_needs_quotes () |
| virtual uint | is_equal (Create_field *new_field) |
| Item_result | numeric_context_result_type () const |
| enum Item_result | cmp_type () const |
| enum Derivation | derivation () const |
| uint | repertoire () const |
| const CHARSET_INFO * | charset () const |
| bool | can_be_compared_as_longlong () const |
| bool | binary () const |
| type_conversion_status | store (const char *str, uint len, const CHARSET_INFO *cs) |
| type_conversion_status | store_decimal (const my_decimal *decimal) |
| type_conversion_status | store (longlong nr, bool unsigned_val) |
| type_conversion_status | store (double nr) |
| Public Member Functions inherited from Field | |
| bool | has_insert_default_function () const |
| bool | has_update_default_function () const |
| Field (uchar *ptr_arg, uint32 length_arg, uchar *null_ptr_arg, uchar null_bit_arg, utype unireg_check_arg, const char *field_name_arg) | |
| This is used as a table name when the table structure is not set up. | |
| virtual type_conversion_status | store_packed (longlong nr) |
| type_conversion_status | store_time (MYSQL_TIME *ltime) |
| type_conversion_status | store (const char *to, uint length, const CHARSET_INFO *cs, enum_check_fields check_level) |
| longlong | val_temporal_by_field_type () |
| String * | val_str (String *str) |
| String * | val_int_as_str (String *val_buffer, my_bool unsigned_flag) |
| virtual Item_result | cast_to_int_type () const |
| virtual bool | eq (Field *field) |
| virtual bool | eq_def (Field *field) |
| virtual uint32 | pack_length () const |
| virtual uint32 | pack_length_in_rec () const |
| virtual bool | compatible_field_size (uint metadata, Relay_log_info *rli, uint16 mflags, int *order) |
| virtual uint | pack_length_from_metadata (uint field_metadata) |
| virtual int | save_field_metadata (uchar *first_byte) |
| virtual uint32 | data_length () |
| virtual uint32 | sort_length () const |
| virtual uint32 | max_data_length () const |
| virtual type_conversion_status | reset (void) |
| virtual void | reset_fields () |
| virtual bool | get_timestamp (struct timeval *tm, int *warnings) |
| virtual void | store_timestamp (const timeval *tm) |
| void | store_timestamp (my_time_t sec) |
| virtual void | set_default () |
| void | evaluate_insert_default_function () |
| void | evaluate_update_default_function () |
| 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) |
| virtual int | cmp_max (const uchar *a, const uchar *b, uint max_len) |
| virtual int | cmp_binary (const uchar *a, const uchar *b, uint32 max_length=~0L) |
| virtual int | cmp_offset (uint row_offset) |
| virtual int | cmp_binary_offset (uint row_offset) |
| virtual int | key_cmp (const uchar *a, const uchar *b) |
| virtual int | key_cmp (const uchar *str, uint length) |
| virtual void | sql_type (String &str) const =0 |
| bool | is_temporal () const |
| bool | is_temporal_with_date () const |
| bool | is_temporal_with_time () const |
| bool | is_temporal_with_date_and_time () const |
| bool | is_null (my_ptrdiff_t row_offset=0) const |
| bool | is_real_null (my_ptrdiff_t row_offset=0) const |
| bool | is_null_in_record (const uchar *record) const |
| void | set_null (my_ptrdiff_t row_offset=0) |
| void | set_notnull (my_ptrdiff_t row_offset=0) |
| bool | maybe_null (void) const |
| bool | real_maybe_null (void) const |
| uint | null_offset (const uchar *record) const |
| uint | null_offset () const |
| void | set_null_ptr (uchar *p_null_ptr, uint p_null_bit) |
| size_t | last_null_byte () const |
| virtual void | make_field (Send_field *) |
| virtual bool | optimize_range (uint idx, uint part) |
| virtual void | free () |
| virtual Field * | new_field (MEM_ROOT *root, TABLE *new_table, bool keep_type) |
| virtual Field * | new_key_field (MEM_ROOT *root, TABLE *new_table, uchar *new_ptr, uchar *new_null_ptr, uint new_null_bit) |
| Field * | new_key_field (MEM_ROOT *root, TABLE *new_table, uchar *new_ptr) |
| virtual Field * | clone () const =0 |
| virtual Field * | clone (MEM_ROOT *mem_root) const =0 |
| void | move_field (uchar *ptr_arg, uchar *null_ptr_arg, uchar null_bit_arg) |
| void | move_field (uchar *ptr_arg) |
| virtual void | move_field_offset (my_ptrdiff_t ptr_diff) |
| virtual void | get_image (uchar *buff, uint length, const CHARSET_INFO *cs) |
| virtual void | set_image (const uchar *buff, uint length, const CHARSET_INFO *cs) |
| virtual uint | get_key_image (uchar *buff, uint length, imagetype type) |
| virtual void | set_key_image (const uchar *buff, uint length) |
| longlong | val_int_offset (uint row_offset) |
| longlong | val_int (const uchar *new_ptr) |
| String * | val_str (String *str, const uchar *new_ptr) |
| virtual uchar * | pack (uchar *to, const uchar *from, uint max_length, bool low_byte_first) |
| uchar * | pack (uchar *to, const uchar *from) |
| virtual const uchar * | unpack (uchar *to, const uchar *from, uint param_data, bool low_byte_first) |
| const uchar * | unpack (uchar *to, const uchar *from) |
| virtual uint | packed_col_length (const uchar *to, uint length) |
| virtual uint | max_packed_col_length (uint max_length) |
| uint | offset (uchar *record) |
| void | copy_from_tmp (int offset) |
| uint | fill_cache_field (struct st_cache_field *copy) |
| virtual bool | get_date (MYSQL_TIME *ltime, uint fuzzydate) |
| virtual const CHARSET_INFO * | charset_for_protocol (void) const |
| virtual bool | has_charset (void) const |
| virtual bool | match_collation_to_optimize_range () const |
| virtual void | set_derivation (enum Derivation derivation_arg) |
| bool | set_warning (Sql_condition::enum_warning_level, unsigned int code, int cuted_increment) const |
| bool | check_overflow (int op_result) |
| bool | check_truncated (int op_result) |
| bool | warn_if_overflow (int op_result) |
| void | init (TABLE *table_arg) |
| longlong | convert_decimal2longlong (const my_decimal *val, bool unsigned_flag, bool *has_overflow) |
| virtual uint32 | char_length () |
| virtual geometry_type | get_geometry_type () |
| void | dbug_print () |
| 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) |
Additional Inherited Members | |
| Public Types inherited from Field | |
| enum | utype { NONE, DATE, SHIELD, NOEMPTY, CASEUP, PNR, BGNR, PGNR, YES, NO, REL, CHECK, EMPTY, UNKNOWN_FIELD, CASEDN, NEXT_NUMBER, INTERVAL_FIELD, BIT_FIELD, TIMESTAMP_OLD_FIELD, CAPITALIZE, BLOB_FIELD, TIMESTAMP_DN_FIELD, TIMESTAMP_UN_FIELD, TIMESTAMP_DNUN_FIELD } |
| 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 } |
| enum | { LAST_NULL_BYTE_UNDEF = 0 } |
| Static Public Member Functions inherited from Field | |
| static void * | operator new (size_t size) throw () |
| static void * | operator new (size_t size, MEM_ROOT *mem_root) throw () |
| static void | operator delete (void *ptr, MEM_ROOT *mem_root) |
| static void | operator delete (void *ptr_arg, size_t size) throw () |
| static bool | type_can_have_key_part (enum_field_types) |
| static enum_field_types | field_type_merge (enum_field_types, enum_field_types) |
| static Item_result | result_merge_type (enum_field_types) |
| Public Attributes inherited from Field | |
| uchar * | ptr |
| TABLE * | table |
| TABLE * | orig_table |
| const char ** | table_name |
| const char * | field_name |
| LEX_STRING | comment |
| key_map | key_start |
| key_map | part_of_key |
| key_map | part_of_key_not_clustered |
| key_map | part_of_sortkey |
| utype | unireg_check |
| uint32 | field_length |
| uint32 | flags |
| uint16 | field_index |
| uchar | null_bit |
| bool | is_created_from_null_item |
| Protected Member Functions inherited from Field_temporal_with_date_and_time | |
| void | init_timestamp_flags () |
| virtual void | store_timestamp_internal (const struct timeval *tm)=0 |
| bool | convert_TIME_to_timestamp (THD *thd, const MYSQL_TIME *ltime, struct timeval *tm, int *error) |
| Static Protected Member Functions inherited from Field | |
| static void | handle_int16 (uchar *to, const uchar *from, bool low_byte_first_from, bool low_byte_first_to) |
| static void | handle_int24 (uchar *to, const uchar *from, bool low_byte_first_from, bool low_byte_first_to) |
| static void | handle_int32 (uchar *to, const uchar *from, bool low_byte_first_from, bool low_byte_first_to) |
| static void | handle_int64 (uchar *to, const uchar *from, bool low_byte_first_from, bool low_byte_first_to) |
| Protected Attributes inherited from Field_temporal | |
| uint8 | dec |
Abstract class for types with date and time, with fractional part: DATETIME, DATETIME(N), TIMESTAMP, TIMESTAMP(N).
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inline |
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inline |
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inlinevirtual |
Writes a copy of the current value in the record buffer, suitable for sorting using byte-by-byte comparison. Integers are always in big-endian regardless of hardware architecture. At most length bytes are written into the buffer.
| buff | The buffer, assumed to be at least length bytes. |
| length | Number of bytes to write. |
Implements Field.
1.8.1.2 
