From faacd36a128da1623132e904e6e1ab84bbc61df7 Mon Sep 17 00:00:00 2001 From: Georgi Kodinov Date: Fri, 18 Sep 2009 16:01:18 +0300 Subject: Bug#46760: Fast ALTER TABLE no longer works for InnoDB Despite copying the value of the old table's row type we don't always have to mark row type as being specified. Innodb uses this to check if it can do fast ALTER TABLE or not. Fixed by correctly flagging the presence of row_type only when it's actually changed. Added a test case for 39200. --- sql/handler.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'sql/handler.h') diff --git a/sql/handler.h b/sql/handler.h index f759239d66e..fe8f7c437ff 100644 --- a/sql/handler.h +++ b/sql/handler.h @@ -913,6 +913,15 @@ typedef struct st_ha_create_information ulong key_block_size; SQL_LIST merge_list; handlerton *db_type; + /** + Row type of the table definition. + + Defaults to ROW_TYPE_DEFAULT for all non-ALTER statements. + For ALTER TABLE defaults to ROW_TYPE_NOT_USED (means "keep the current"). + + Can be changed either explicitly by the parser. + If nothing speficied inherits the value of the original table (if present). + */ enum row_type row_type; uint null_bits; /* NULL bits at start of record */ uint options; /* OR of HA_CREATE_ options */ -- cgit v1.2.1