370
381
#define IS_EQUAL_PACK_LENGTH 2
374
Query type constants.
376
QT_ORDINARY -- ordinary SQL query.
377
QT_IS -- SQL query to be shown in INFORMATION_SCHEMA (in utf8 and without
378
character set introducers).
382
Move this out of here once Stew's done with UDF breakout. The following headers need it:
384
sql_lex.h --> included by session.h
402
* @TODO Move to a separate header?
404
* It's needed by item.h and field.h, which are both inter-dependent
405
* and contain forward declarations of many structs/classes in the
408
* What is needed is a separate header file that is included
409
* by *both* item.h and field.h to resolve inter-dependencies
411
* But, probably want to hold off on this until Stew finished the UDF cleanup
415
DERIVATION_IGNORABLE= 5,
416
DERIVATION_COERCIBLE= 4,
417
DERIVATION_SYSCONST= 3,
418
DERIVATION_IMPLICIT= 2,
420
DERIVATION_EXPLICIT= 0
424
* Opening modes for open_temporary_table and open_table_from_share
426
* @TODO Put this into an appropriate header. It is only needed in:
440
* used by several functions in functions/time directory
443
enum date_time_format_types
445
TIME_ONLY= 0, TIME_MICROSECOND, DATE_ONLY, DATE_TIME, DATE_TIME_MICROSECOND
449
enum enum_parsing_place
458
enum enum_mysql_completiontype {
461
, ROLLBACK_AND_CHAIN= 7
464
, COMMIT_AND_CHAIN= 6
467
enum enum_check_fields
471
, CHECK_FIELD_ERROR_FOR_NULL
482
typedef uint64_t query_id_t;
483
typedef void *range_seq_t;
487
The maximum is defined as (ULONG_MAX/1000) with 4 bytes uint32_t
489
static const uint32_t SLAVE_MAX_HEARTBEAT_PERIOD= 4294967;
491
#define SLAVE_NET_TIMEOUT 3600
493
#define MAX_SLAVE_ERROR 2000
495
/* masks for start/stop operations on io and sql slave threads */
500
#define NO_HASH /* Not yet implemented */
503
// the following is for checking tables
505
#define HA_ADMIN_ALREADY_DONE 1
506
#define HA_ADMIN_OK 0
507
#define HA_ADMIN_NOT_IMPLEMENTED -1
508
#define HA_ADMIN_FAILED -2
509
#define HA_ADMIN_CORRUPT -3
510
#define HA_ADMIN_INTERNAL_ERROR -4
511
#define HA_ADMIN_INVALID -5
512
#define HA_ADMIN_REJECT -6
513
#define HA_ADMIN_TRY_ALTER -7
514
#define HA_ADMIN_NEEDS_UPGRADE -10
515
#define HA_ADMIN_NEEDS_ALTER -11
516
#define HA_ADMIN_NEEDS_CHECK -12
519
#define HA_ADD_INDEX (0)
520
#define HA_DROP_INDEX (1)
521
#define HA_ALTER_INDEX (2)
522
#define HA_RENAME_INDEX (3)
523
#define HA_ADD_UNIQUE_INDEX (4)
524
#define HA_DROP_UNIQUE_INDEX (5)
525
#define HA_ALTER_UNIQUE_INDEX (6)
526
#define HA_RENAME_UNIQUE_INDEX (7)
527
#define HA_ADD_PK_INDEX (8)
528
#define HA_DROP_PK_INDEX (9)
529
#define HA_ALTER_PK_INDEX (10)
530
#define HA_ADD_COLUMN (11)
531
#define HA_DROP_COLUMN (12)
532
#define HA_CHANGE_COLUMN (13)
533
#define HA_ALTER_COLUMN_NAME (14)
534
#define HA_ALTER_COLUMN_TYPE (15)
535
#define HA_ALTER_COLUMN_ORDER (16)
536
#define HA_ALTER_COLUMN_NULLABLE (17)
537
#define HA_COLUMN_DEFAULT_VALUE (18)
538
#define HA_COLUMN_STORAGE (19)
539
#define HA_COLUMN_FORMAT (20)
540
#define HA_ADD_FOREIGN_KEY (21)
541
#define HA_DROP_FOREIGN_KEY (22)
542
#define HA_ALTER_FOREIGN_KEY (23)
543
#define HA_ADD_CONSTRAINT (24)
544
#define HA_CHANGE_CHARACTER_SET (30)
545
#define HA_SET_DEFAULT_CHARACTER_SET (31)
546
#define HA_CHANGE_AUTOINCREMENT_VALUE (32)
547
#define HA_ALTER_STORAGE (33)
548
#define HA_ALTER_TABLESPACE (34)
549
#define HA_ALTER_ROW_FORMAT (35)
550
#define HA_RENAME_TABLE (36)
551
#define HA_ALTER_STORAGE_ENGINE (37)
552
#define HA_RECREATE (38)
553
#define HA_ALTER_STORED_VCOL (39)
554
/* Remember to increase HA_MAX_ALTER_FLAGS when adding more flags! */
556
/* Return values for check_if_supported_alter */
558
#define HA_ALTER_ERROR -1
559
#define HA_ALTER_SUPPORTED_WAIT_LOCK 0
560
#define HA_ALTER_SUPPORTED_NO_LOCK 1
561
#define HA_ALTER_NOT_SUPPORTED 2
563
/* Bits in table_flags() to show what database can do */
565
#define HA_NO_TRANSACTIONS (1 << 0) /* Doesn't support transactions */
566
#define HA_PARTIAL_COLUMN_READ (1 << 1) /* read may not return all columns */
567
#define HA_TABLE_SCAN_ON_INDEX (1 << 2) /* No separate data/index file */
569
The following should be set if the following is not true when scanning
570
a table with rnd_next()
571
- We will see all rows (including deleted ones)
572
- Row positions are 'table->s->db_record_offset' apart
573
If this flag is not set, filesort will do a postion() call for each matched
574
row to be able to find the row later.
576
#define HA_REC_NOT_IN_SEQ (1 << 3)
579
Reading keys in random order is as fast as reading keys in sort order
580
(Used in records.cc to decide if we should use a record cache and by
581
filesort to decide if we should sort key + data or key + pointer-to-row
583
#define HA_FAST_KEY_READ (1 << 5)
585
Set the following flag if we on delete should force all key to be read
586
and on update read all keys that changes
588
#define HA_REQUIRES_KEY_COLUMNS_FOR_DELETE (1 << 6)
589
#define HA_NULL_IN_KEY (1 << 7) /* One can have keys with NULL */
590
#define HA_DUPLICATE_POS (1 << 8) /* ha_position() gives dup row */
591
#define HA_NO_BLOBS (1 << 9) /* Doesn't support blobs */
592
#define HA_CAN_INDEX_BLOBS (1 << 10)
593
#define HA_AUTO_PART_KEY (1 << 11) /* auto-increment in multi-part key */
594
#define HA_REQUIRE_PRIMARY_KEY (1 << 12) /* .. and can't create a hidden one */
595
#define HA_STATS_RECORDS_IS_EXACT (1 << 13) /* stats.records is exact */
597
If we get the primary key columns for free when we do an index read
598
It also implies that we have to retrive the primary key when using
599
position() and rnd_pos().
601
#define HA_PRIMARY_KEY_IN_READ_INDEX (1 << 15)
603
If HA_PRIMARY_KEY_REQUIRED_FOR_POSITION is set, it means that to position()
604
uses a primary key. Without primary key, we can't call position().
606
#define HA_PRIMARY_KEY_REQUIRED_FOR_POSITION (1 << 16)
607
#define HA_NOT_DELETE_WITH_CACHE (1 << 18)
609
The following is we need to a primary key to delete (and update) a row.
610
If there is no primary key, all columns needs to be read on update and delete
612
#define HA_PRIMARY_KEY_REQUIRED_FOR_DELETE (1 << 19)
613
#define HA_NO_PREFIX_CHAR_KEYS (1 << 20)
614
#define HA_NO_AUTO_INCREMENT (1 << 23)
615
#define HA_HAS_CHECKSUM (1 << 24)
616
/* Table data are stored in separate files (for lower_case_table_names) */
617
#define HA_FILE_BASED (1 << 26)
618
#define HA_NEED_READ_RANGE_BUFFER (1 << 29) /* for read_multi_range */
619
#define HA_ANY_INDEX_MAY_BE_UNIQUE (1 << 30)
620
#define HA_NO_COPY_ON_ALTER (INT64_C(1) << 31)
621
#define HA_HAS_RECORDS (INT64_C(1) << 32) /* records() gives exact count*/
622
#define HA_MRR_CANT_SORT (INT64_C(1) << 34)
625
Engine is capable of row-format and statement-format logging,
628
#define HA_BINLOG_ROW_CAPABLE (INT64_C(1) << 35)
629
#define HA_BINLOG_STMT_CAPABLE (INT64_C(1) << 36)
631
#define HA_ONLINE_ALTER (INT64_C(1) << 37)
634
Set of all binlog flags. Currently only contain the capabilities
637
#define HA_BINLOG_FLAGS (HA_BINLOG_ROW_CAPABLE | HA_BINLOG_STMT_CAPABLE)
639
/* bits in index_flags(index_number) for what you can do with index */
640
#define HA_READ_NEXT 1 /* TODO really use this flag */
641
#define HA_READ_PREV 2 /* supports ::index_prev */
642
#define HA_READ_ORDER 4 /* index_next/prev follow sort order */
643
#define HA_READ_RANGE 8 /* can find all records in a range */
644
#define HA_ONLY_WHOLE_INDEX 16 /* Can't use part key searches */
645
#define HA_KEYREAD_ONLY 64 /* Support HA_EXTRA_KEYREAD */
647
Index scan will not return records in rowid order. Not guaranteed to be
648
set for unordered (e.g. HASH) indexes.
650
#define HA_KEY_SCAN_NOT_ROR 128
651
#define HA_DO_INDEX_COND_PUSHDOWN 256 /* Supports Index Condition Pushdown */
653
/* operations for disable/enable indexes */
654
#define HA_KEY_SWITCH_NONUNIQ 0
655
#define HA_KEY_SWITCH_ALL 1
656
#define HA_KEY_SWITCH_NONUNIQ_SAVE 2
657
#define HA_KEY_SWITCH_ALL_SAVE 3
660
Note: the following includes binlog and closing 0.
661
so: innodb + bdb + ndb + binlog + myisam + myisammrg + archive +
662
example + csv + heap + blackhole + federated + 0
663
(yes, the sum is deliberately inaccurate)
664
TODO remove the limit, use dynarrays
669
Parameters for open() (in register form->filestat)
670
HA_GET_INFO does an implicit HA_ABORT_IF_LOCKED
673
#define HA_OPEN_KEYFILE 1
674
#define HA_OPEN_RNDFILE 2
675
#define HA_GET_INDEX 4
676
#define HA_GET_INFO 8 /* do a ha_info() after open */
677
#define HA_READ_ONLY 16 /* File opened as readonly */
678
/* Try readonly if can't open with read and write */
679
#define HA_TRY_READ_ONLY 32
680
#define HA_WAIT_IF_LOCKED 64 /* Wait if locked on open */
681
#define HA_ABORT_IF_LOCKED 128 /* skip if locked on open.*/
682
#define HA_BLOCK_LOCK 256 /* unlock when reading some records */
683
#define HA_OPEN_TEMPORARY 512
685
/* For transactional LOCK Table. handler::lock_table() */
686
#define HA_LOCK_IN_SHARE_MODE F_RDLCK
687
#define HA_LOCK_IN_EXCLUSIVE_MODE F_WRLCK
689
/* Some key definitions */
690
#define HA_KEY_NULL_LENGTH 1
691
#define HA_KEY_BLOB_LENGTH 2
693
#define HA_LEX_CREATE_TMP_TABLE 1
694
#define HA_LEX_CREATE_IF_NOT_EXISTS 2
695
#define HA_LEX_CREATE_TABLE_LIKE 4
696
#define HA_OPTION_NO_CHECKSUM (1L << 17)
697
#define HA_OPTION_NO_DELAY_KEY_WRITE (1L << 18)
698
#define HA_MAX_REC_LENGTH 65535
700
/* Table caching type */
701
#define HA_CACHE_TBL_NONTRANSACT 0
702
#define HA_CACHE_TBL_NOCACHE 1
703
#define HA_CACHE_TBL_ASKTRANSACT 2
704
#define HA_CACHE_TBL_TRANSACT 4
706
/* Options of START TRANSACTION statement (and later of SET TRANSACTION stmt) */
707
#define DRIZZLE_START_TRANS_OPT_WITH_CONS_SNAPSHOT 1
709
/* Flags for method is_fatal_error */
710
#define HA_CHECK_DUP_KEY 1
711
#define HA_CHECK_DUP_UNIQUE 2
712
#define HA_CHECK_DUP (HA_CHECK_DUP_KEY + HA_CHECK_DUP_UNIQUE)
717
DB_TYPE_FIRST_DYNAMIC=42,
718
DB_TYPE_DEFAULT=127 // Must be last
721
enum row_type { ROW_TYPE_NOT_USED=-1, ROW_TYPE_DEFAULT, ROW_TYPE_FIXED,
722
ROW_TYPE_DYNAMIC, ROW_TYPE_COMPRESSED,
723
ROW_TYPE_REDUNDANT, ROW_TYPE_COMPACT, ROW_TYPE_PAGE };
725
enum column_format_type { COLUMN_FORMAT_TYPE_NOT_USED= -1,
726
COLUMN_FORMAT_TYPE_DEFAULT= 0,
727
COLUMN_FORMAT_TYPE_FIXED= 1,
728
COLUMN_FORMAT_TYPE_DYNAMIC= 2 };
730
enum enum_binlog_func {
735
BFN_BINLOG_PURGE_FILE= 5
738
enum enum_binlog_command {
748
/* struct to hold information about the table that should be created */
750
/* Bits in used_fields */
751
#define HA_CREATE_USED_AUTO (1L << 0)
753
#define HA_CREATE_USED_UNION (1L << 2)
754
#define HA_CREATE_USED_PASSWORD (1L << 17)
756
#define HA_CREATE_USED_INSERT_METHOD (1L << 3)
757
#define HA_CREATE_USED_MIN_ROWS (1L << 4)
758
#define HA_CREATE_USED_MAX_ROWS (1L << 5)
759
#define HA_CREATE_USED_AVG_ROW_LENGTH (1L << 6)
760
#define HA_CREATE_USED_PACK_KEYS (1L << 7)
761
#define HA_CREATE_USED_CHARSET (1L << 8)
762
#define HA_CREATE_USED_DEFAULT_CHARSET (1L << 9)
763
#define HA_CREATE_USED_DATADIR (1L << 10)
764
#define HA_CREATE_USED_INDEXDIR (1L << 11)
765
#define HA_CREATE_USED_ENGINE (1L << 12)
766
#define HA_CREATE_USED_CHECKSUM (1L << 13)
767
#define HA_CREATE_USED_DELAY_KEY_WRITE (1L << 14)
768
#define HA_CREATE_USED_ROW_FORMAT (1L << 15)
769
#define HA_CREATE_USED_COMMENT (1L << 16)
770
#define HA_CREATE_USED_CONNECTION (1L << 18)
771
#define HA_CREATE_USED_KEY_BLOCK_SIZE (1L << 19)
772
#define HA_CREATE_USED_PAGE_CHECKSUM (1L << 21)
773
#define HA_CREATE_USED_BLOCK_SIZE (1L << 22)
775
#define MAXGTRIDSIZE 64
776
#define MAXBQUALSIZE 64
778
#define COMPATIBLE_DATA_YES 0
779
#define COMPATIBLE_DATA_NO 1
781
#define UNDEF_NODEGROUP 65535
782
#define NOT_A_PARTITION_ID ((uint32_t)-1)
784
enum ha_choice { HA_CHOICE_UNDEF, HA_CHOICE_NO, HA_CHOICE_YES };
787
The below two are not used (and not handled) in this milestone of this WL
788
entry because there seems to be no use for them at this stage of
791
#define HA_MRR_SINGLE_POINT 1
792
#define HA_MRR_FIXED_KEY 2
795
Indicates that RANGE_SEQ_IF::next(&range) doesn't need to fill in the
798
#define HA_MRR_NO_ASSOCIATION 4
801
The MRR user will provide ranges in key order, and MRR implementation
802
must return rows in key order.
804
#define HA_MRR_SORTED 8
806
/* MRR implementation doesn't have to retrieve full records */
807
#define HA_MRR_INDEX_ONLY 16
810
The passed memory buffer is of maximum possible size, the caller can't
811
assume larger buffer.
813
#define HA_MRR_LIMITS 32
817
Flag set <=> default MRR implementation is used
818
(The choice is made by **_info[_const]() function which may set this
819
flag. SQL layer remembers the flag value and then passes it to
820
multi_read_range_init().
822
#define HA_MRR_USE_DEFAULT_IMPL 64
825
Used only as parameter to multi_range_read_info():
826
Flag set <=> the caller guarantees that the bounds of the scanned ranges
827
will not have NULL values.
829
#define HA_MRR_NO_NULL_ENDPOINTS 128
831
enum enum_ha_read_modes { RFIRST, RNEXT, RPREV, RLAST, RKEY, RNEXT_SAME };
833
enum enum_tx_isolation { ISO_READ_UNCOMMITTED, ISO_READ_COMMITTED,
834
ISO_REPEATABLE_READ, ISO_SERIALIZABLE};
837
enum SHOW_COMP_OPTION { SHOW_OPTION_YES, SHOW_OPTION_NO, SHOW_OPTION_DISABLED};
840
#define MYF(v) (myf) (v)
843
When a command is added here, be sure it's also added in mysqld.cc
844
in "struct show_var_st status_vars[]= {" ...
846
If the command returns a result set or is not allowed in stored
847
functions or triggers, please also make sure that
848
sp_get_flags_for_command (sp_head.cc) returns proper flags for the
852
enum enum_sql_command {
853
SQLCOM_SELECT, SQLCOM_CREATE_TABLE, SQLCOM_CREATE_INDEX, SQLCOM_ALTER_TABLE,
854
SQLCOM_UPDATE, SQLCOM_INSERT, SQLCOM_INSERT_SELECT,
855
SQLCOM_DELETE, SQLCOM_TRUNCATE, SQLCOM_DROP_TABLE, SQLCOM_DROP_INDEX,
856
SQLCOM_SHOW_DATABASES, SQLCOM_SHOW_TABLES, SQLCOM_SHOW_FIELDS,
857
SQLCOM_SHOW_KEYS, SQLCOM_SHOW_VARIABLES, SQLCOM_SHOW_STATUS,
858
SQLCOM_SHOW_ENGINE_LOGS, SQLCOM_SHOW_ENGINE_STATUS, SQLCOM_SHOW_ENGINE_MUTEX,
859
SQLCOM_SHOW_PROCESSLIST,
861
SQLCOM_SHOW_CREATE_DB,
862
SQLCOM_SHOW_TABLE_STATUS,
863
SQLCOM_LOAD,SQLCOM_SET_OPTION,SQLCOM_LOCK_TABLES,SQLCOM_UNLOCK_TABLES,
864
SQLCOM_CHANGE_DB, SQLCOM_CREATE_DB, SQLCOM_DROP_DB, SQLCOM_ALTER_DB,
865
SQLCOM_REPAIR, SQLCOM_REPLACE, SQLCOM_REPLACE_SELECT,
866
SQLCOM_OPTIMIZE, SQLCOM_CHECK,
867
SQLCOM_ASSIGN_TO_KEYCACHE,
868
SQLCOM_FLUSH, SQLCOM_KILL, SQLCOM_ANALYZE,
869
SQLCOM_ROLLBACK, SQLCOM_ROLLBACK_TO_SAVEPOINT,
870
SQLCOM_COMMIT, SQLCOM_SAVEPOINT, SQLCOM_RELEASE_SAVEPOINT,
871
SQLCOM_SLAVE_START, SQLCOM_SLAVE_STOP,
874
SQLCOM_SHOW_OPEN_TABLES,
875
SQLCOM_DELETE_MULTI, SQLCOM_UPDATE_MULTI,
882
When a command is added here, be sure it's also added in mysqld.cc
883
in "struct show_var_st status_vars[]= {" ...
885
/* This should be the last !!! */
889
enum enum_duplicates { DUP_ERROR, DUP_REPLACE, DUP_UPDATE };
891
enum release_type { RELEASE_NORMAL, RELEASE_WAIT_FOR_DROP };
894
Make sure that the order of schema_tables and enum_schema_tables are the same.
897
enum enum_schema_tables
901
SCH_COLLATION_CHARACTER_SET_APPLICABILITY,
904
SCH_GLOBAL_VARIABLES,
905
SCH_KEY_COLUMN_USAGE,
909
SCH_REFERENTIAL_CONSTRAINTS,
912
SCH_SESSION_VARIABLES,
916
SCH_TABLE_CONSTRAINTS,
922
#define MY_I_S_MAYBE_NULL 1
923
#define MY_I_S_UNSIGNED 2
926
#define SKIP_OPEN_TABLE 0 // do not open table
927
#define OPEN_FRM_ONLY 1 // open FRM file only
928
#define OPEN_FULL_TABLE 2 // open FRM,MYD, MYI files
931
"Declared Type Collation"
932
A combination of collation and its derivation.
934
Flags for collation aggregation modes:
935
MY_COLL_ALLOW_SUPERSET_CONV - allow conversion to a superset
936
MY_COLL_ALLOW_COERCIBLE_CONV - allow conversion of a coercible value
938
MY_COLL_ALLOW_CONV - allow any kind of conversion
939
(combination of the above two)
940
MY_COLL_DISALLOW_NONE - don't allow return DERIVATION_NONE
941
(e.g. when aggregating for comparison)
942
MY_COLL_CMP_CONV - combination of MY_COLL_ALLOW_CONV
943
and MY_COLL_DISALLOW_NONE
946
#define MY_COLL_ALLOW_SUPERSET_CONV 1
947
#define MY_COLL_ALLOW_COERCIBLE_CONV 2
948
#define MY_COLL_ALLOW_CONV 3
949
#define MY_COLL_DISALLOW_NONE 4
950
#define MY_COLL_CMP_CONV 7
954
This enum is used to report information about monotonicity of function
955
represented by Item* tree.
956
Monotonicity is defined only for Item* trees that represent table
957
partitioning expressions (i.e. have no subselects/user vars/PS parameters
958
etc etc). An Item* tree is assumed to have the same monotonicity properties
959
as its correspoinding function F:
961
[signed] int64_t F(field1, field2, ...) {
962
put values of field_i into table record buffer;
963
return item->val_int();
967
At the moment function monotonicity is not well defined (and so may be
968
incorrect) for Item trees with parameters/return types that are different
969
from INT_RESULT, may be NULL, or are unsigned.
970
It will be possible to address this issue once the related partitioning bugs
971
(BUG#16002, BUG#15447, BUG#13436) are fixed.
974
typedef enum monotonicity_info
976
NON_MONOTONIC, /* none of the below holds */
977
MONOTONIC_INCREASING, /* F() is unary and (x < y) => (F(x) <= F(y)) */
978
MONOTONIC_STRICT_INCREASING /* F() is unary and (x < y) => (F(x) < F(y)) */
979
} enum_monotonicity_info;
983
NO_TMP_TABLE, NON_TRANSACTIONAL_TMP_TABLE, TRANSACTIONAL_TMP_TABLE,
984
INTERNAL_TMP_TABLE, SYSTEM_TMP_TABLE, TMP_TABLE_FRM_FILE_ONLY
988
Values in this enum are used to indicate how a tables TIMESTAMP field
989
should be treated. It can be set to the current timestamp on insert or
991
WARNING: The values are used for bit operations. If you change the
992
enum, you must keep the bitwise relation of the values. For example:
993
(int) TIMESTAMP_AUTO_SET_ON_BOTH must be equal to
994
(int) TIMESTAMP_AUTO_SET_ON_INSERT | (int) TIMESTAMP_AUTO_SET_ON_UPDATE.
995
We use an enum here so that the debugger can display the value names.
997
enum timestamp_auto_set_type
999
TIMESTAMP_NO_AUTO_SET= 0, TIMESTAMP_AUTO_SET_ON_INSERT= 1,
1000
TIMESTAMP_AUTO_SET_ON_UPDATE= 2, TIMESTAMP_AUTO_SET_ON_BOTH= 3
1002
#define clear_timestamp_auto_bits(_target_, _bits_) \
1003
(_target_)= (enum timestamp_auto_set_type)((int)(_target_) & ~(int)(_bits_))
1006
Category of table found in the table share.
1008
enum enum_table_category
1013
TABLE_UNKNOWN_CATEGORY=0,
1017
The table is visible only in the session.
1019
- FLUSH TABLES WITH READ LOCK
1020
- SET GLOBAL READ_ONLY = ON
1021
do not apply to this table.
1022
Note that LOCK Table t FOR READ/WRITE
1023
can be used on temporary tables.
1024
Temporary tables are not part of the table cache.
1026
TABLE_CATEGORY_TEMPORARY=1,
1030
These tables do honor:
1031
- LOCK Table t FOR READ/WRITE
1032
- FLUSH TABLES WITH READ LOCK
1033
- SET GLOBAL READ_ONLY = ON
1034
User tables are cached in the table cache.
1036
TABLE_CATEGORY_USER=2,
1039
Information schema tables.
1040
These tables are an interface provided by the system
1041
to inspect the system metadata.
1042
These tables do *not* honor:
1043
- LOCK Table t FOR READ/WRITE
1044
- FLUSH TABLES WITH READ LOCK
1045
- SET GLOBAL READ_ONLY = ON
1046
as there is no point in locking explicitely
1047
an INFORMATION_SCHEMA table.
1048
Nothing is directly written to information schema tables.
1049
Note that this value is not used currently,
1050
since information schema tables are not shared,
1051
but implemented as session specific temporary tables.
1054
TODO: Fixing the performance issues of I_S will lead
1055
to I_S tables in the table cache, which should use
1058
TABLE_CATEGORY_INFORMATION
1061
/* Information for one open table */
1062
enum index_hint_type
1070
enum enum_enable_or_disable { LEAVE_AS_IS, ENABLE, DISABLE };
1071
enum enum_delay_key_write { DELAY_KEY_WRITE_NONE, DELAY_KEY_WRITE_ON,
1072
DELAY_KEY_WRITE_ALL };
1073
enum enum_slave_exec_mode { SLAVE_EXEC_MODE_STRICT,
1074
SLAVE_EXEC_MODE_IDEMPOTENT,
1075
SLAVE_EXEC_MODE_LAST_BIT};
1076
enum enum_mark_columns
1077
{ MARK_COLUMNS_NONE, MARK_COLUMNS_READ, MARK_COLUMNS_WRITE};
1079
enum enum_filetype { FILETYPE_CSV, FILETYPE_XML };
1081
enum find_item_error_report_type {REPORT_ALL_ERRORS, REPORT_EXCEPT_NOT_FOUND,
1082
IGNORE_ERRORS, REPORT_EXCEPT_NON_UNIQUE,
1083
IGNORE_EXCEPT_NON_UNIQUE};
1085
enum enum_schema_table_state
1088
PROCESSED_BY_CREATE_SORT_INDEX,
1089
PROCESSED_BY_JOIN_EXEC
1093
* The following are for the interface with the .frm file
1096
#define FIELDFLAG_DECIMAL 1
1097
#define FIELDFLAG_BINARY 1 // Shares same flag
1098
#define FIELDFLAG_NUMBER 2
1099
#define FIELDFLAG_DECIMAL_POSITION 4
1100
#define FIELDFLAG_PACK 120 // Bits used for packing
1101
#define FIELDFLAG_INTERVAL 256 // mangled with decimals!
1102
#define FIELDFLAG_BLOB 1024 // mangled with decimals!
1104
#define FIELDFLAG_NO_DEFAULT 16384 /* sql */
1105
#define FIELDFLAG_SUM ((uint32_t) 32768)// predit: +#fieldflag
1106
#define FIELDFLAG_MAYBE_NULL ((uint32_t) 32768)// sql
1107
#define FIELDFLAG_HEX_ESCAPE ((uint32_t) 0x10000)
1108
#define FIELDFLAG_PACK_SHIFT 3
1109
#define FIELDFLAG_DEC_SHIFT 8
1110
#define FIELDFLAG_MAX_DEC 31
1112
#define MTYP_TYPENR(type) (type & 127) /* Remove bits from type */
1114
#define f_is_dec(x) ((x) & FIELDFLAG_DECIMAL)
1115
#define f_is_num(x) ((x) & FIELDFLAG_NUMBER)
1116
#define f_is_decimal_precision(x) ((x) & FIELDFLAG_DECIMAL_POSITION)
1117
#define f_is_packed(x) ((x) & FIELDFLAG_PACK)
1118
#define f_packtype(x) (((x) >> FIELDFLAG_PACK_SHIFT) & 15)
1119
#define f_decimals(x) ((uint8_t) (((x) >> FIELDFLAG_DEC_SHIFT) & \
1121
#define f_is_alpha(x) (!f_is_num(x))
1122
#define f_is_binary(x) ((x) & FIELDFLAG_BINARY) // 4.0- compatibility
1123
#define f_is_enum(x) (((x) & (FIELDFLAG_INTERVAL | FIELDFLAG_NUMBER)) == \
1125
#define f_is_blob(x) (((x) & (FIELDFLAG_BLOB | FIELDFLAG_NUMBER)) == \
1127
#define f_is_equ(x) ((x) & (1+2+FIELDFLAG_PACK+31*256))
1128
#define f_settype(x) (((int) x) << FIELDFLAG_PACK_SHIFT)
1129
#define f_maybe_null(x) (x & FIELDFLAG_MAYBE_NULL)
1130
#define f_no_default(x) (x & FIELDFLAG_NO_DEFAULT)
1131
#define f_is_hex_escape(x) ((x) & FIELDFLAG_HEX_ESCAPE)
1133
384
#endif /* DRIZZLE_SERVER_DEFINITIONS_H */