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WL#5370 Keep forward-compatibility when changing

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'CREATE TABLE IF NOT EXISTS ... SELECT' behaviour
BUG#47132, BUG#47442, BUG49494, BUG#23992 and BUG#48814 will disappear
automatically after the this patch.
BUG#55617 is fixed by this patch too.
            
This is the 5.5 part.
It implements:
- 'CREATE TABLE IF NOT EXISTS ... SELECT' statement will not insert
  anything and binlog anything if the table already exists.
  It only generate a warning that table already exists.
- A couple of test cases for the behavior changing.
This commit is contained in:
2010-08-18 17:35:41 +08:00
parent 8977575cff
commit d3b7cd3ff2
31 changed files with 806 additions and 302 deletions
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2
mysql-test/t/merge.test
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@@ -579,7 +579,7 @@ DROP TABLE tm1, t1, t2;
#
CREATE TABLE t1(c1 INT);
CREATE TABLE t2 (c1 INT) ENGINE=MERGE UNION=(t1) INSERT_METHOD=FIRST;
--error ER_UPDATE_TABLE_USED
# After WL#5370, it just generates a warning that the table already exists
CREATE TABLE IF NOT EXISTS t1 SELECT * FROM t2;
DROP TABLE t1, t2;