mirror of
https://github.com/MariaDB/server.git
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db7edfed17
MDEV-10134 Add full support for DEFAULT - Added support for using tables with MySQL 5.7 virtual fields, including MySQL 5.7 syntax - Better error messages also for old cases - CREATE ... SELECT now also updates timestamp columns - Blob can now have default values - Added new system variable "check_constraint_checks", to turn of CHECK constraint checking if needed. - Removed some engine independent tests in suite vcol to only test myisam - Moved some tests from 'include' to 't'. Should some day be done for all tests. - FRM version increased to 11 if one uses virtual fields or constraints - Changed to use a bitmap to check if a field has got a value, instead of setting HAS_EXPLICIT_VALUE bit in field flags - Expressions can now be up to 65K in total - Ensure we are not refering to uninitialized fields when handling virtual fields or defaults - Changed check_vcol_func_processor() to return a bitmap of used types - Had to change some functions that calculated cached value in fix_fields to do this in val() or getdate() instead. - store_now_in_TIME() now takes a THD argument - fill_record() now updates default values - Add a lookahead for NOT NULL, to be able to handle DEFAULT 1+1 NOT NULL - Automatically generate a name for constraints that doesn't have a name - Added support for ALTER TABLE DROP CONSTRAINT - Ensure that partition functions register virtual fields used. This fixes some bugs when using virtual fields in a partitioning function
217 lines
8 KiB
C
217 lines
8 KiB
C
#ifndef UNIREG_INCLUDED
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#define UNIREG_INCLUDED
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/*
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Copyright (c) 2000, 2011, Oracle and/or its affiliates.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA */
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#include <mysql_version.h> /* FRM_VER */
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/* Extra functions used by unireg library */
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#ifndef NO_ALARM_LOOP
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#define NO_ALARM_LOOP /* lib5 and popen can't use alarm */
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#endif
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/* These paths are converted to other systems (WIN95) before use */
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#define LANGUAGE "english/"
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#define ERRMSG_FILE "errmsg.sys"
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#define TEMP_PREFIX "MY"
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#define LOG_PREFIX "ML"
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#define PROGDIR "bin/"
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#ifndef MYSQL_DATADIR
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#define MYSQL_DATADIR "data/"
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#endif
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#ifndef SHAREDIR
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#define SHAREDIR "share/"
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#endif
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#ifndef PLUGINDIR
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#define PLUGINDIR "lib/plugin"
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#endif
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#define MAX_ERROR_RANGES 4 /* 1000-2000, 2000-3000, 3000-4000, 4000-5000 */
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#define ERRORS_PER_RANGE 1000
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#define DEFAULT_ERRMSGS my_default_lc_messages->errmsgs->errmsgs
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#define CURRENT_THD_ERRMSGS (current_thd)->variables.errmsgs
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#define ER_DEFAULT(X) DEFAULT_ERRMSGS[((X)-ER_ERROR_FIRST) / ERRORS_PER_RANGE][(X)% ERRORS_PER_RANGE]
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#define ER_THD(thd,X) ((thd)->variables.errmsgs[((X)-ER_ERROR_FIRST) / ERRORS_PER_RANGE][(X) % ERRORS_PER_RANGE])
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#define ER(X) ER_THD(current_thd, (X))
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#define ER_THD_OR_DEFAULT(thd,X) ((thd) ? ER_THD(thd, (X)) : ER_DEFAULT(X))
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#define ME_INFO (ME_HOLDTANG+ME_OLDWIN+ME_NOREFRESH)
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#define ME_ERROR (ME_BELL+ME_OLDWIN+ME_NOREFRESH)
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#define MYF_RW MYF(MY_WME+MY_NABP) /* Vid my_read & my_write */
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#define SPECIAL_USE_LOCKS 1 /* Lock used databases */
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#define SPECIAL_NO_NEW_FUNC 2 /* Skip new functions */
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#define SPECIAL_SKIP_SHOW_DB 4 /* Don't allow 'show db' */
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#define SPECIAL_WAIT_IF_LOCKED 8 /* Wait if locked database */
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#define SPECIAL_SAME_DB_NAME 16 /* form name = file name */
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#define SPECIAL_ENGLISH 32 /* English error messages */
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#define SPECIAL_NO_RESOLVE 64 /* Don't use gethostname */
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#define SPECIAL_NO_PRIOR 128 /* Obsolete */
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#define SPECIAL_BIG_SELECTS 256 /* Don't use heap tables */
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#define SPECIAL_NO_HOST_CACHE 512 /* Don't cache hosts */
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#define SPECIAL_SHORT_LOG_FORMAT 1024
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#define SPECIAL_SAFE_MODE 2048
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#define SPECIAL_LOG_QUERIES_NOT_USING_INDEXES 4096 /* Obsolete */
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/* Extern defines */
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#define store_record(A,B) memcpy((A)->B,(A)->record[0],(size_t) (A)->s->reclength)
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#define restore_record(A,B) memcpy((A)->record[0],(A)->B,(size_t) (A)->s->reclength)
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#define cmp_record(A,B) memcmp((A)->record[0],(A)->B,(size_t) (A)->s->reclength)
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#define empty_record(A) { \
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restore_record((A),s->default_values); \
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bfill((A)->null_flags,(A)->s->null_bytes,255);\
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}
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/* Defines for use with openfrm, openprt and openfrd */
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#define READ_ALL 1 /* openfrm: Read all parameters */
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#define CHANGE_FRM 2 /* openfrm: open .frm as O_RDWR */
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#define READ_KEYINFO 4 /* L{s nyckeldata fr}n filen */
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#define EXTRA_RECORD 8 /* Reserve space for an extra record */
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#define DONT_OPEN_TABLES 8 /* Don't open database-files (frd) */
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#define DONT_OPEN_MASTER_REG 16 /* Don't open first reg-file (prt) */
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#define EXTRA_LONG_RECORD 16 /* Plats f|r dubbel s|k-record */
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#define COMPUTE_TYPES 32 /* Kontrollera type f|r f{ltena */
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#define SEARCH_PRG 64 /* S|k efter registret i 'prg_dev' */
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#define READ_USED_NAMES 128 /* L{s anv{nda formul{rnamn */
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#define DONT_GIVE_ERROR 256 /* Don't do frm_error on openfrm */
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#define READ_SCREENS 1024 /* Read screens, info and helpfile */
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#define DELAYED_OPEN 4096 /* Open table later */
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#define OPEN_VIEW 8192 /* Allow open on view */
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#define OPEN_VIEW_NO_PARSE 16384 /* Open frm only if it's a view,
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but do not parse view itself */
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/**
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This flag is used in function get_all_tables() which fills
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I_S tables with data which are retrieved from frm files and storage engine
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The flag means that we need to open FRM file only to get necessary data.
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*/
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#define OPEN_FRM_FILE_ONLY 32768
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/**
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This flag is used in function get_all_tables() which fills
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I_S tables with data which are retrieved from frm files and storage engine
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The flag means that we need to process tables only to get necessary data.
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Views are not processed.
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*/
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#define OPEN_TABLE_ONLY (OPEN_FRM_FILE_ONLY*2)
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/**
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This flag is used in function get_all_tables() which fills
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I_S tables with data which are retrieved from frm files and storage engine
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The flag means that we need to process views only to get necessary data.
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Tables are not processed.
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*/
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#define OPEN_VIEW_ONLY (OPEN_TABLE_ONLY*2)
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/**
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This flag is used in function get_all_tables() which fills
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I_S tables with data which are retrieved from frm files and storage engine.
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The flag means that we need to open a view using
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open_normal_and_derived_tables() function.
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*/
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#define OPEN_VIEW_FULL (OPEN_VIEW_ONLY*2)
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/**
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This flag is used in function get_all_tables() which fills
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I_S tables with data which are retrieved from frm files and storage engine.
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The flag means that I_S table uses optimization algorithm.
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*/
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#define OPTIMIZE_I_S_TABLE (OPEN_VIEW_FULL*2)
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/**
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This flag is used to instruct tdc_open_view() to check metadata version.
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*/
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#define CHECK_METADATA_VERSION (OPEN_TRIGGER_ONLY*2)
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/*
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The flag means that we need to process trigger files only.
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*/
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#define OPEN_TRIGGER_ONLY (OPTIMIZE_I_S_TABLE*2)
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#define SC_INFO_LENGTH 4 /* Form format constant */
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#define TE_INFO_LENGTH 3
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#define MTYP_NOEMPTY_BIT 128
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/*
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Minimum length pattern before Turbo Boyer-Moore is used
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for SELECT "text" LIKE "%pattern%", excluding the two
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wildcards in class Item_func_like.
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*/
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#define MIN_TURBOBM_PATTERN_LEN 3
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/*
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Defines for binary logging.
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Do not decrease the value of BIN_LOG_HEADER_SIZE.
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Do not even increase it before checking code.
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*/
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#define BIN_LOG_HEADER_SIZE 4
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#define DEFAULT_KEY_CACHE_NAME "default"
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/* Include prototypes for unireg */
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#include "mysqld_error.h"
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#include "structs.h" /* All structs we need */
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#include "sql_list.h" /* List<> */
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#include "field.h" /* Create_field */
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/*
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Types of values in the MariaDB extra2 frm segment.
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Each value is written as
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type: 1 byte
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length: 1 byte (1..255) or \0 and 2 bytes.
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binary value of the 'length' bytes.
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Older MariaDB servers can ignore values of unknown types if
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the type code is less than 128 (EXTRA2_ENGINE_IMPORTANT).
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Otherwise older (but newer than 10.0.1) servers are required
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to report an error.
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*/
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enum extra2_frm_value_type {
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EXTRA2_TABLEDEF_VERSION=0,
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EXTRA2_DEFAULT_PART_ENGINE=1,
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EXTRA2_GIS=2,
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#define EXTRA2_ENGINE_IMPORTANT 128
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EXTRA2_ENGINE_TABLEOPTS=128,
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};
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int rea_create_table(THD *thd, LEX_CUSTRING *frm,
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const char *path, const char *db, const char *table_name,
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HA_CREATE_INFO *create_info, handler *file,
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bool no_ha_create_table);
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LEX_CUSTRING build_frm_image(THD *thd, const char *table,
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HA_CREATE_INFO *create_info,
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List<Create_field> &create_fields,
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uint keys, KEY *key_info, handler *db_file);
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#define FRM_HEADER_SIZE 64
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#define FRM_FORMINFO_SIZE 288
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#define FRM_MAX_SIZE (512*1024)
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static inline bool is_binary_frm_header(uchar *head)
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{
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return head[0] == 254
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&& head[1] == 1
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&& head[2] >= FRM_VER
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&& head[2] <= FRM_VER_CURRENT;
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}
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#endif
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