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/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
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* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
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* Copyright (C) 2008 Sun Microsystems
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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 St, Fifth Floor, Boston, MA 02110-1301 USA
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/* Copyright (C) 2000 MySQL AB
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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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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/* This file includes constants used with all databases */
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* @TODO Name this file something better and split it out if necessary.
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* base.h isn't descriptive, especially compared to global.h
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* @TODO Name this file something better and split it out if necessary.
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* base.h isn't descriptive, especially compared to global.h
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* @TODO Convert HA_XXX defines into enums and/or bitmaps
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#ifndef DRIZZLE_SERVER_BASE_H
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#define DRIZZLE_SERVER_BASE_H
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#ifndef stdin /* Included first in handler */
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#define CHSIZE_USED
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#include <drizzled/global.h>
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#include <mysys/my_dir.h> /* This includes types */
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#include <mysys/my_sys.h>
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#include <mystrings/m_string.h>
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#include <mysys/my_list.h>
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/* The following is bits in the flag parameter to ha_open() */
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#define HA_OPEN_WAIT_IF_LOCKED 1
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#define HA_OPEN_IGNORE_IF_LOCKED 2
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#define HA_OPEN_TMP_TABLE 4 /* Table is a temp table */
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#define HA_OPEN_DELAY_KEY_WRITE 8 /* Don't update index */
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#define HA_OPEN_ABORT_IF_CRASHED 16
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#define HA_OPEN_FOR_REPAIR 32 /* open even if crashed */
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#define HA_OPEN_FROM_SQL_LAYER 64
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#define HA_OPEN_MMAP 128 /* open memory mapped */
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#define HA_OPEN_COPY 256 /* Open copy (for repair) */
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/* Internal temp table, used for temporary results */
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#define HA_OPEN_INTERNAL_TABLE 512
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HA_EXTRA_CHANGE_KEY_TO_UNIQUE,
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HA_EXTRA_CHANGE_KEY_TO_DUP,
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When using HA_EXTRA_KEYREAD, overwrite only key member fields and keep
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When using HA_EXTRA_KEYREAD, overwrite only key member fields and keep
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other fields intact. When this is off (by default) InnoDB will use memcpy
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to overwrite entire row.
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HA_EXTRA_KEYREAD_PRESERVE_FIELDS,
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Ignore if the a tuple is not found, continue processing the
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transaction and ignore that 'row'. Needed for idempotency
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HA_EXTRA_WRITE_CANNOT_REPLACE,
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Inform handler that delete_row()/update_row() cannot batch deletes/updates
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and should perform them immediately. This may be needed when table has
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and should perform them immediately. This may be needed when table has
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AFTER DELETE/UPDATE triggers which access to subject table.
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These flags are reset by the handler::extra(HA_EXTRA_RESET) call.
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#define HA_VAR_LENGTH_KEY 8
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#define HA_NULL_PART_KEY 64
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#define HA_USES_COMMENT 4096
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#define HA_USES_BLOCK_SIZE ((uint32_t) 32768)
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#define HA_USES_BLOCK_SIZE ((uint) 32768)
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#define HA_SORT_ALLOWS_SAME 512 /* Intern bit when sorting records */
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/* These flags can be added to key-seg-flag */
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#define HA_OPTION_PACK_RECORD 1
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#define HA_OPTION_PACK_KEYS 2
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#define HA_OPTION_COMPRESS_RECORD 4
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#define HA_OPTION_LONG_BLOB_PTR 8 /* new ISAM format */
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#define HA_OPTION_TMP_TABLE 16
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#define HA_OPTION_CHECKSUM 32
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#define HA_OPTION_DELAY_KEY_WRITE 64
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#define HA_OPTION_NO_PACK_KEYS 128 /* Reserved for MySQL */
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#define HA_OPTION_CREATE_FROM_ENGINE 256
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#define HA_OPTION_RELIES_ON_SQL_LAYER 512
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#define HA_OPTION_NULL_FIELDS 1024
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#define HA_OPTION_PAGE_CHECKSUM 2048
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#define HA_OPTION_TEMP_COMPRESS_RECORD ((uint32_t) 16384) /* set by isamchk */
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#define HA_OPTION_READ_ONLY_DATA ((uint32_t) 32768) /* Set by isamchk */
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#define HA_OPTION_TEMP_COMPRESS_RECORD ((uint) 16384) /* set by isamchk */
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#define HA_OPTION_READ_ONLY_DATA ((uint) 32768) /* Set by isamchk */
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/* Bits in flag to create() */
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#define HA_DONT_TOUCH_DATA 1 /* Don't empty datafile (isamchk) */
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#define HA_PACK_RECORD 2 /* Request packed record format */
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#define HA_CREATE_TMP_TABLE 4
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#define HA_CREATE_CHECKSUM 8
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#define HA_CREATE_KEEP_FILES 16 /* don't overwrite .MYD and MYI */
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#define HA_CREATE_PAGE_CHECKSUM 32
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#define HA_CREATE_DELAY_KEY_WRITE 64
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#define HA_CREATE_RELIES_ON_SQL_LAYER 128
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The following flags (OR-ed) are passed to handler::info() method.
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/* Other constants */
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#define HA_NAMELEN 64 /* Max length of saved filename */
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#define NO_SUCH_KEY (~(uint32_t)0) /* used as a key no. */
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#define NO_SUCH_KEY (~(uint)0) /* used as a key no. */
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typedef ulong key_part_map;
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#define HA_WHOLE_KEY (~(key_part_map)0)
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/* X > key, i.e. not including the right endpoint */
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#define NEAR_MAX 8
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This flag means that index is a unique index, and the interval is
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This flag means that index is a unique index, and the interval is
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equivalent to "AND(keypart_i = const_i)", where all of const_i are not NULLs.
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#define UNIQUE_RANGE 16
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This flag means that the interval is equivalent to
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"AND(keypart_i = const_i)", where not all key parts may be used but all of
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This flag means that the interval is equivalent to
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"AND(keypart_i = const_i)", where not all key parts may be used but all of
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const_i are not NULLs.
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#define EQ_RANGE 32
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This flag has the same meaning as UNIQUE_RANGE, except that for at least
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one keypart the condition is "keypart IS NULL".
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one keypart the condition is "keypart IS NULL".
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#define NULL_RANGE 64
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typedef struct st_key_range
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const unsigned char *key;
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key_part_map keypart_map;
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enum ha_rkey_function flag;
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key_part_map keypart_map;
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typedef struct st_key_multi_range