myisammrg::records_in_range

1 files changed, 39 insertions, 0 deletions

diff --git a/myisammrg/myrg_range.c b/myisammrg/myrg_range.c
new file mode 100644
index 00000000000..9d93ad75a35
--- /dev/null
+++ b/myisammrg/myrg_range.c
@@ -0,0 +1,39 @@
+/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
+
+   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; either version 2 of the License, or
+   (at your option) any later version.
+
+   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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
+
+#include "myrg_def.h"
+
+ha_rows myrg_records_in_range(MYRG_INFO *info, int inx, const byte *start_key,
+                              uint start_key_len,
+                              enum ha_rkey_function start_search_flag,
+                              const byte *end_key, uint end_key_len,
+                              enum ha_rkey_function end_search_flag)
+{
+  ha_rows records=0, res;
+  MYRG_TABLE *table;
+
+  for (table=info->open_tables ; table != info->end_table ; table++)
+  {
+    res=mi_records_in_range(table->table, inx,
+                start_key, start_key_len, start_search_flag,
+                  end_key,   end_key_len,   end_search_flag);
+    if (res == HA_POS_ERROR || records > HA_POS_ERROR - res)
+      return res;
+    records+=res;
+  }
+  return records;
+}
+