bk commit into 5.0 tree (msvensson:1.2407) BUG#25262

[msvensson]

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ChangeSet@stripped, 2007-02-07 14:58:51+01:00, msvensson@stripped +1 -0
  Bug#25262 Auto Increment lost when changing Engine type
   - Try to copy the autoincrement value when altering the table

  sql/sql_table.cc@stripped, 2007-02-07 14:58:49+01:00, msvensson@stripped +6 -0
    Try to copy the autoincrement value when altering the table

# This is a BitKeeper patch.  What follows are the unified diffs for the
# set of deltas contained in the patch.  The rest of the patch, the part
# that BitKeeper cares about, is below these diffs.
# User:	msvensson
# Host:	pilot.mysql.com
# Root:	/home/msvensson/mysql/bug25262/my50-bug25262

--- 1.333/sql/sql_table.cc	2007-01-26 13:36:47 +01:00
+++ 1.334/sql/sql_table.cc	2007-02-07 14:58:49 +01:00
@@ -3274,6 +3274,12 @@
     create_info->avg_row_length= table->s->avg_row_length;
   if (!(used_fields & HA_CREATE_USED_DEFAULT_CHARSET))
     create_info->default_table_charset= table->s->table_charset;
+  if (!(used_fields & HA_CREATE_USED_AUTO) &&
table->found_next_number_field)
+  {
+    /* Table has an autoincrement, copy value to new table */
+    table->file->info(HA_STATUS_AUTO);
+    create_info->auto_increment_value= table->file->auto_increment_value;
+  }
 
   restore_record(table, s->default_values);     // Empty record for DEFAULT
   List_iterator<Alter_drop> drop_it(alter_info->drop_list);