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d5964ba20c
Docs/manual.texi: Updated MERGE table stuff + more extra/perror.c: Added missing error messages include/myisammrg.h: Fixes for MERGE TABLE include/queues.h: Fixes for MERGE TABLE isam/isamlog.c: Fixed hard bug myisam/mi_log.c: cleanup myisam/mi_open.c: Fixed file name format in myisam log myisam/myisamlog.c: Bug fixes myisammrg/mymrgdef.h: Fixes for MERGE TABLE myisammrg/myrg_create.c: Fixes for MERGE TABLE myisammrg/myrg_open.c: Fixes for MERGE TABLE myisammrg/myrg_queue.c: Fixes for MERGE TABLE myisammrg/myrg_rfirst.c: Fixes for MERGE TABLE myisammrg/myrg_rkey.c: Fixes for MERGE TABLE myisammrg/myrg_rlast.c: Fixes for MERGE TABLE myisammrg/myrg_rnext.c: Fixes for MERGE TABLE myisammrg/myrg_rprev.c: Fixes for MERGE TABLE myisammrg/myrg_rrnd.c: Fixes for MERGE TABLE mysql.proj: update mysys/queues.c: Fixed bug when using reverse queues sql-bench/test-insert.sh: Separated some things to get better timings sql/ha_heap.cc: Fixed heap table bug sql/ha_heap.h: Fixed heap table bug sql/ha_myisam.h: Fixed wrong max_keys sql/ha_myisammrg.cc: Fixed MERGE TABLES sql/ha_myisammrg.h: Fixed MERGE TABLES sql/handler.h: Fix for MERGE TABLES and HEAP tables sql/lex.h: Fixed MERGE TABLES sql/mysql_priv.h: Cleanup of code sql/sql_acl.cc: Fixed that privilege tables are flushed at start sql/sql_lex.h: Fixed MERGE TABLES sql/sql_parse.cc: Fixed MERGE TABLES sql/sql_select.cc: Fixes for HEAP tables sql/sql_table.cc: Cleanup sql/sql_yacc.yy: Fixed MERGE TABLES
50 lines
1.5 KiB
C
50 lines
1.5 KiB
C
/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult 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; either version 2 of the License, or
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(at your option) any later version.
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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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#include "mymrgdef.h"
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/* Read last row with the same key as the previous read. */
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int myrg_rlast(MYRG_INFO *info, byte *buf, int inx)
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{
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MYRG_TABLE *table;
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MI_INFO *mi;
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int err;
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if (_myrg_init_queue(info,inx, HA_READ_KEY_OR_PREV))
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return my_errno;
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for (table=info->open_tables ; table < info->end_table ; table++)
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{
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if ((err=mi_rlast(table->table,NULL,inx)))
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{
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if (err == HA_ERR_END_OF_FILE)
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continue;
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return err;
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}
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/* adding to queue */
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queue_insert(&(info->by_key),(byte *)table);
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}
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/* We have done a read in all tables */
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info->last_used_table=table;
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if (!info->by_key.elements)
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return HA_ERR_END_OF_FILE;
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mi=(info->current_table=(MYRG_TABLE *)queue_top(&(info->by_key)))->table;
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return mi_rrnd(mi,buf,mi->lastpos);
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}
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