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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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9
mysql-test/suite/innodb/r/innodb_mysql.result
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@ -720,7 +720,8 @@ CREATE TABLE t2 (a int, b int, primary key (a));
BEGIN;
INSERT INTO t2 values(100,100);
CREATE TABLE IF NOT EXISTS t2 (primary key (a)) select * from t1;
ERROR 23000: Duplicate entry '1' for key 'PRIMARY'
Warnings:
Note 1050 Table 't2' already exists
SELECT * from t2;
a b
100 100
@ -738,7 +739,8 @@ CREATE TEMPORARY TABLE t2 (a int, b int, primary key (a));
BEGIN;
INSERT INTO t2 values(100,100);
CREATE TEMPORARY TABLE IF NOT EXISTS t2 (primary key (a)) select * from t1;
ERROR 23000: Duplicate entry '1' for key 'PRIMARY'
Warnings:
Note 1050 Table 't2' already exists
SELECT * from t2;
a b
100 100
@ -746,7 +748,8 @@ COMMIT;
BEGIN;
INSERT INTO t2 values(101,101);
CREATE TEMPORARY TABLE IF NOT EXISTS t2 (primary key (a)) select * from t1;
ERROR 23000: Duplicate entry '1' for key 'PRIMARY'
Warnings:
Note 1050 Table 't2' already exists
SELECT * from t2;
a b
100 100