merge from 5.5-merge

1 files changed, 83 insertions, 22 deletions

diff --git a/mysql-test/suite/innodb/r/innodb_mysql.result b/mysql-test/suite/innodb/r/innodb_mysql.result
index 248aeed24ee..b6fb1ca05d2 100644
--- a/mysql-test/suite/innodb/r/innodb_mysql.result
+++ b/mysql-test/suite/innodb/r/innodb_mysql.result
@@ -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
@@ -889,13 +892,13 @@ EXPLAIN SELECT * FROM t1 WHERE b BETWEEN 1 AND 2 ORDER BY a;
 id	1
 select_type	SIMPLE
 table	t1
-type	range
+type	index
 possible_keys	bkey
-key	bkey
-key_len	5
+key	PRIMARY
+key_len	4
 ref	NULL
-rows	16
-Extra	Using where; Using index; Using filesort
+rows	32
+Extra	Using where
 SELECT * FROM t1 WHERE b BETWEEN 1 AND 2 ORDER BY a;
 a	b
 1	2
@@ -934,12 +937,12 @@ EXPLAIN SELECT * FROM t1 WHERE b BETWEEN 1 AND 2 ORDER BY b,a;
 id	1
 select_type	SIMPLE
 table	t1
-type	range
+type	index
 possible_keys	bkey
 key	bkey
 key_len	5
 ref	NULL
-rows	16
+rows	32
 Extra	Using where; Using index
 SELECT * FROM t1 WHERE b BETWEEN 1 AND 2 ORDER BY b,a;
 a	b
@@ -989,7 +992,7 @@ possible_keys	bkey
 key	bkey
 key_len	5
 ref	const
-rows	8
+rows	16
 Extra	Using where; Using index; Using filesort
 SELECT * FROM t2 WHERE b=1 ORDER BY a;
 a	b	c
@@ -1018,7 +1021,7 @@ possible_keys	bkey
 key	bkey
 key_len	10
 ref	const,const
-rows	8
+rows	16
 Extra	Using where; Using index
 SELECT * FROM t2 WHERE b=1 AND c=1 ORDER BY a;
 a	b	c
@@ -1047,7 +1050,7 @@ possible_keys	bkey
 key	bkey
 key_len	10
 ref	const,const
-rows	8
+rows	16
 Extra	Using where; Using index
 SELECT * FROM t2 WHERE b=1 AND c=1 ORDER BY b,c,a;
 a	b	c
@@ -1076,7 +1079,7 @@ possible_keys	bkey
 key	bkey
 key_len	10
 ref	const,const
-rows	8
+rows	16
 Extra	Using where; Using index
 SELECT * FROM t2 WHERE b=1 AND c=1 ORDER BY c,a;
 a	b	c
@@ -1213,7 +1216,7 @@ possible_keys	b
 key	b
 key_len	5
 ref	const
-rows	1
+rows	2
 Extra	Using where; Using index
 SELECT * FROM t1 WHERE b=2 ORDER BY a ASC;
 a	b
@@ -1228,7 +1231,7 @@ possible_keys	b
 key	b
 key_len	5
 ref	const
-rows	1
+rows	2
 Extra	Using where; Using index
 SELECT * FROM t1 WHERE b=2 ORDER BY a DESC;
 a	b
@@ -1372,7 +1375,7 @@ INSERT INTO t1 (a,b,c) VALUES (1,1,1), (2,1,1), (3,1,1), (4,1,1);
 INSERT INTO t1 (a,b,c) SELECT a+4,b,c FROM t1;
 EXPLAIN SELECT a, b, c FROM t1 WHERE b = 1 ORDER BY a DESC LIMIT 5;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	index	t1_b	PRIMARY	4	NULL	8	Using where
+1	SIMPLE	t1	range	t1_b	t1_b	5	NULL	8	Using where
 SELECT a, b, c FROM t1 WHERE b = 1 ORDER BY a DESC LIMIT 5;
 a	b	c
 8	1	1
@@ -1735,7 +1738,7 @@ SELECT 1 FROM (SELECT COUNT(DISTINCT c1)
 FROM t1 WHERE c2 IN (1, 1) AND c3 = 2 GROUP BY c2) x;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	<derived2>	system	NULL	NULL	NULL	NULL	1	
-2	DERIVED	t1	index	c3,c2	c2	10	NULL	5	
+2	DERIVED	t1	ALL	c3,c2	c3	5		5	Using filesort
 DROP TABLE t1;
 CREATE TABLE t1 (c1 REAL, c2 REAL, c3 REAL, KEY (c3), KEY (c2, c3))
 ENGINE=InnoDB;
@@ -1749,7 +1752,7 @@ SELECT 1 FROM (SELECT COUNT(DISTINCT c1)
 FROM t1 WHERE c2 IN (1, 1) AND c3 = 2 GROUP BY c2) x;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	<derived2>	system	NULL	NULL	NULL	NULL	1	
-2	DERIVED	t1	index	c3,c2	c2	18	NULL	5	
+2	DERIVED	t1	ALL	c3,c2	c3	9		5	Using filesort
 DROP TABLE t1;
 CREATE TABLE t1 (c1 DECIMAL(12,2), c2 DECIMAL(12,2), c3 DECIMAL(12,2), 
 KEY (c3), KEY (c2, c3))
@@ -1764,7 +1767,7 @@ SELECT 1 FROM (SELECT COUNT(DISTINCT c1)
 FROM t1 WHERE c2 IN (1, 1) AND c3 = 2 GROUP BY c2) x;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	<derived2>	system	NULL	NULL	NULL	NULL	1	
-2	DERIVED	t1	index	c3,c2	c2	14	NULL	5	
+2	DERIVED	t1	ALL	c3,c2	c3	7		5	Using filesort
 DROP TABLE t1;
 End of 5.1 tests
 #
@@ -1871,7 +1874,7 @@ possible_keys	b
 key	b
 key_len	5
 ref	NULL
-rows	3
+rows	5
 Extra	Using where; Using index
 EXPLAIN SELECT c FROM bar WHERE c>2;;
 id	1
@@ -2536,7 +2539,7 @@ f1	f2	f3	f4
 EXPLAIN SELECT * FROM t1 WHERE f2 = 1 AND f4 = TRUE
 ORDER BY f1 DESC LIMIT 5;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	range	f2,f4	f4	1	NULL	11	Using where
+1	SIMPLE	t1	range	f2,f4	f4	1	NULL	22	Using where
 DROP TABLE t1;
 #
 # Bug#54117 crash in thr_multi_unlock, temporary table
@@ -2547,6 +2550,64 @@ ALTER TABLE t1 COMMENT 'test';
 UNLOCK TABLES;
 DROP TABLE t1;
 #
+# Bug#55656: mysqldump can be slower after bug #39653 fix
+#
+CREATE TABLE t1 (a INT , b INT, c INT, d INT,
+KEY (b), PRIMARY KEY (a,b)) ENGINE=INNODB;
+INSERT INTO t1 VALUES (1,1,1,1), (2,2,2,2), (3,3,3,3);
+EXPLAIN SELECT COUNT(*) FROM t1;
+id	1
+select_type	SIMPLE
+table	t1
+type	index
+possible_keys	NULL
+key	b
+key_len	4
+ref	NULL
+rows	3
+Extra	Using index
+DROP INDEX b ON t1;
+CREATE INDEX b ON t1(a,b);
+EXPLAIN SELECT COUNT(*) FROM t1;
+id	1
+select_type	SIMPLE
+table	t1
+type	index
+possible_keys	NULL
+key	b
+key_len	8
+ref	NULL
+rows	3
+Extra	Using index
+DROP INDEX b ON t1;
+CREATE INDEX b ON t1(a,b,c);
+EXPLAIN SELECT COUNT(*) FROM t1;
+id	1
+select_type	SIMPLE
+table	t1
+type	index
+possible_keys	NULL
+key	b
+key_len	13
+ref	NULL
+rows	3
+Extra	Using index
+DROP INDEX b ON t1;
+CREATE INDEX b ON t1(a,b,c,d);
+EXPLAIN SELECT COUNT(*) FROM t1;
+id	1
+select_type	SIMPLE
+table	t1
+type	index
+possible_keys	NULL
+key	PRIMARY
+key_len	8
+ref	NULL
+rows	3
+Extra	Using index
+DROP TABLE t1;
+#
+#
 # Bug#55826: create table .. select crashes with when KILL_BAD_DATA 
 #  is returned
 #