From a175314c3e5827eb193872241446f2f8f5c9d33c Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 4 May 2024 20:07:14 +0200 Subject: Adding upstream version 1:10.5.12. Signed-off-by: Daniel Baumann --- storage/myisammrg/myrg_rfirst.c | 49 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 storage/myisammrg/myrg_rfirst.c (limited to 'storage/myisammrg/myrg_rfirst.c') diff --git a/storage/myisammrg/myrg_rfirst.c b/storage/myisammrg/myrg_rfirst.c new file mode 100644 index 00000000..c8400c0a --- /dev/null +++ b/storage/myisammrg/myrg_rfirst.c @@ -0,0 +1,49 @@ +/* Copyright (c) 2000, 2001, 2003, 2005-2007 MySQL AB + Use is subject to license terms + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; version 2 of the License. + + 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 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 Street, Fifth Floor, Boston, MA 02110-1335 USA */ + +#include "myrg_def.h" + + /* Read first row according to specific key */ + +int myrg_rfirst(MYRG_INFO *info, uchar *buf, int inx) +{ + MYRG_TABLE *table; + MI_INFO *mi; + int err; + + if (_myrg_init_queue(info,inx,HA_READ_KEY_OR_NEXT)) + return my_errno; + + for (table=info->open_tables ; table != info->end_table ; table++) + { + if ((err=mi_rfirst(table->table,NULL,inx))) + { + if (err == HA_ERR_END_OF_FILE) + continue; + return err; + } + /* adding to queue */ + queue_insert(&(info->by_key),(uchar *)table); + } + /* We have done a read in all tables */ + info->last_used_table=table; + + if (!info->by_key.elements) + return HA_ERR_END_OF_FILE; + + mi=(info->current_table=(MYRG_TABLE *)queue_top(&(info->by_key)))->table; + return _myrg_mi_read_record(mi,buf); +} -- cgit v1.2.3