88 lines
2.7 KiB
C++
88 lines
2.7 KiB
C++
/* Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License, version 2.0,
|
|
as published by the Free Software Foundation.
|
|
|
|
This program is also distributed with certain software (including
|
|
but not limited to OpenSSL) that is licensed under separate terms,
|
|
as designated in a particular file or component or in included license
|
|
documentation. The authors of MySQL hereby grant you an additional
|
|
permission to link the program and your derivative works with the
|
|
separately licensed software that they have included with MySQL.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License, version 2.0, for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
|
|
|
|
/* Extra functions we want to do with a database */
|
|
/* - Set flags for quicker databasehandler */
|
|
/* - Set databasehandler to normal */
|
|
/* - Reset recordpointers as after open database */
|
|
|
|
#include <sys/types.h>
|
|
|
|
#include "my_dbug.h"
|
|
#include "storage/heap/heapdef.h"
|
|
|
|
static void heap_extra_keyflag(HP_INFO *info, enum ha_extra_function function);
|
|
|
|
/* set extra flags for database */
|
|
|
|
int heap_extra(HP_INFO *info, enum ha_extra_function function) {
|
|
DBUG_TRACE;
|
|
|
|
switch (function) {
|
|
case HA_EXTRA_RESET_STATE:
|
|
heap_reset(info);
|
|
break;
|
|
case HA_EXTRA_NO_READCHECK:
|
|
info->opt_flag &= ~READ_CHECK_USED; /* No readcheck */
|
|
break;
|
|
case HA_EXTRA_READCHECK:
|
|
info->opt_flag |= READ_CHECK_USED;
|
|
break;
|
|
case HA_EXTRA_CHANGE_KEY_TO_UNIQUE:
|
|
case HA_EXTRA_CHANGE_KEY_TO_DUP:
|
|
heap_extra_keyflag(info, function);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
return 0;
|
|
} /* heap_extra */
|
|
|
|
int heap_reset(HP_INFO *info) {
|
|
info->lastinx = -1;
|
|
info->current_record = (ulong)~0L;
|
|
info->current_hash_ptr = 0;
|
|
info->update = 0;
|
|
info->next_block = 0;
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
Start/Stop Inserting Duplicates Into a Table, WL#1648.
|
|
*/
|
|
static void heap_extra_keyflag(HP_INFO *info, enum ha_extra_function function) {
|
|
uint idx;
|
|
|
|
for (idx = 0; idx < info->s->keys; idx++) {
|
|
switch (function) {
|
|
case HA_EXTRA_CHANGE_KEY_TO_UNIQUE:
|
|
info->s->keydef[idx].flag |= HA_NOSAME;
|
|
break;
|
|
case HA_EXTRA_CHANGE_KEY_TO_DUP:
|
|
info->s->keydef[idx].flag &= ~(HA_NOSAME);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|