1 files changed, 86 insertions, 0 deletions
diff --git a/storage/myisammrg/myrg_info.c b/storage/myisammrg/myrg_info.c
new file mode 100644
index 00000000..1d78c650
--- /dev/null
+++ b/storage/myisammrg/myrg_info.c
@@ -0,0 +1,86 @@
+/* Copyright (c) 2000, 2001, 2005, 2006 MySQL AB, 2009 Sun Microsystems, Inc.
+   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 St, Fifth Floor, Boston, MA 02110-1335  USA */
+
+#include "myrg_def.h"
+
+ulonglong myrg_position(MYRG_INFO *info)
+{
+  MYRG_TABLE *current_table;
+
+  if (!(current_table = info->current_table) &&
+      info->open_tables != info->end_table)
+    current_table = info->open_tables;
+  return  current_table ?
+    current_table->table->lastpos + current_table->file_offset :
+    ~(ulonglong) 0;
+}
+
+int myrg_status(MYRG_INFO *info,register MYMERGE_INFO *x,int flag)
+{
+  MYRG_TABLE *current_table;
+  DBUG_ENTER("myrg_status");
+
+  if (!(current_table = info->current_table) &&
+      info->open_tables != info->end_table)
+    current_table = info->open_tables;
+  x->recpos  = info->current_table ?
+    info->current_table->table->lastpos + info->current_table->file_offset :
+      (ulong) -1L;
+  if (flag != HA_STATUS_POS)
+  {
+    MYRG_TABLE *file;
+
+    info->records=info->del=info->data_file_length=0;
+    for (file=info->open_tables ; file != info->end_table ; file++)
+    {
+      file->file_offset=info->data_file_length;
+      info->data_file_length+=file->table->s->state.state.data_file_length;
+      info->records+=file->table->s->state.state.records;
+      info->del+=file->table->s->state.state.del;
+      DBUG_PRINT("info2",("table: %s, offset: %lu",
+                  file->table->filename,(ulong) file->file_offset));
+    }
+    x->records= info->records;
+    x->deleted= info->del;
+    x->data_file_length= info->data_file_length;
+    x->reclength= info->reclength;
+    x->options= info->options;
+    if (current_table)
+    {
+      /*
+        errkey is set to the index number of the myisam tables. But
+        since the MERGE table can have less keys than the MyISAM
+        tables, errkey cannot be be used as an index into the key_info
+        on the server. This value will be overwritten with MAX_KEY by
+        the MERGE engine.
+      */
+      x->errkey= current_table->table->errkey;
+      /*
+        Calculate the position of the duplicate key to be the sum of the
+        offset of the myisam file and the offset into the file at which
+        the duplicate key is located.
+      */
+      x->dupp_key_pos= current_table->file_offset + current_table->table->dupp_key_pos;
+    }
+    else
+    {
+      x->errkey= 0;
+      x->dupp_key_pos= 0;
+    }
+    x->rec_per_key = info->rec_per_key_part;
+  }
+  DBUG_RETURN(0);
+}