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e96fcbcfe9
Optimize fixed length MyISAM rows to use pread/pwrite. BUILD/compile-pentium-debug-max: Also build embedded server libmysqld/lib_vio.c: Add vio_poll_read() myisam/mi_statrec.c: Use pread()/pwrite() instead of seek+read/write mysql-test/r/multi_update.result: Fix multi-table-delete test mysql-test/t/multi_update.test: Fix multi-table-delete test sql/filesort.cc: Fix multi-table-delete sql/mysql_priv.h: Fix multi-table-delete sql/sql_class.h: Fix multi-table-delete sql/sql_delete.cc: Fix multi-table-delete sql/sql_parse.cc: Fix multi-table-delete sql/sql_select.cc: Fix multi-table-delete sql/sql_table.cc: cleanup sql/sql_unions.cc: cleanup sql/sql_yacc.yy: cleanup/ optimize sql/structs.h: Fix multi-table-delete sql/uniques.cc: Fix multi-table-delete
35 lines
1013 B
C++
35 lines
1013 B
C++
/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & Monty & Sinisa
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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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/* Union of selects */
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#include "mysql_priv.h"
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/*
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Do a union of selects
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*/
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int mysql_union(THD *thd,LEX *lex,uint no_of_selects)
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{
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SELECT_LEX *sl;
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for (sl=&lex->select_lex;sl;sl=sl->next)
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{
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}
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return 0;
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}
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