release/src/router/mysql/storage/myisam/mi_rfirst.c

   1 /* Copyright (c) 2000, 2001, 2005-2007 MySQL AB
   2
   3    This program is free software; you can redistribute it and/or modify
   4    it under the terms of the GNU General Public License as published by
   5    the Free Software Foundation; version 2 of the License.
   6
   7    This program is distributed in the hope that it will be useful,
   8    but WITHOUT ANY WARRANTY; without even the implied warranty of
   9    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  10    GNU General Public License for more details.
  11
  12    You should have received a copy of the GNU General Public License
  13    along with this program; if not, write to the Free Software
  14    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA */
  15
  16 #include "myisamdef.h"
  17
  18         /*  Read first row through  a specfic key */
  19
  20 int mi_rfirst(MI_INFO *info, uchar *buf, int inx)
  21 {
  22   DBUG_ENTER("mi_rfirst");
  23   info->lastpos= HA_OFFSET_ERROR;
  24   info->update|= HA_STATE_PREV_FOUND;
  25   DBUG_RETURN(mi_rnext(info,buf,inx));
  26 } /* mi_rfirst */