Merge changes from MySQL AB to the innodb_mysql test.

mysql-test/innodb_mysql.result

@@ -124,7 +124,7 @@ min(7)
 NULL
 select min(7) from DUAL;
 min(7)
-NULL
+7
 explain select min(7) from t2m join t1m;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Select tables optimized away
@@ -139,7 +139,7 @@ max(7)
 NULL
 select max(7) from DUAL;
 max(7)
-NULL
+7
 explain select max(7) from t2m join t1m;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Select tables optimized away
@@ -178,7 +178,7 @@ min(7)
 NULL
 select min(7) from DUAL;
 min(7)
-NULL
+7
 explain select min(7) from t2i join t1i;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t2i	ALL	NULL	NULL	NULL	NULL	1	
@@ -194,7 +194,7 @@ max(7)
 NULL
 select max(7) from DUAL;
 max(7)
-NULL
+7
 explain select max(7) from t2i join t1i;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t2i	ALL	NULL	NULL	NULL	NULL	1	
@@ -432,22 +432,44 @@ ifnull( c,
 0 ) + 1;
 select last_insert_id();
 last_insert_id()
-1
+2
+select last_insert_id(0);
+last_insert_id(0)
+0
+insert into t2 ( a ) values ( 6 ) on duplicate key update c =
+ifnull( c,
+0 ) + 1;
+select last_insert_id();
+last_insert_id()
+0
 select * from t2;
 k	a	c
-1	6	1
+1	6	2
 2	7	NULL
 insert ignore into t2 values (null,6,1),(10,8,1);
 select last_insert_id();
 last_insert_id()
-1
+0
 insert ignore into t2 values (null,6,1),(null,8,1),(null,15,1),(null,20,1);
 select last_insert_id();
 last_insert_id()
 11
 select * from t2;
 k	a	c
-1	6	1
+1	6	2
+2	7	NULL
+10	8	1
+11	15	1
+12	20	1
+insert into t2 ( a ) values ( 6 ) on duplicate key update c =
+ifnull( c,
+0 ) + 1, k=last_insert_id(k);
+select last_insert_id();
+last_insert_id()
+1
+select * from t2;
+k	a	c
+1	6	3
 2	7	NULL
 10	8	1
 11	15	1

mysql-test/innodb_mysql.test

@@ -369,8 +369,8 @@ insert into t1 values('aaa');
 drop table t1;
 
 # Fix for BUG#19243 "wrong LAST_INSERT_ID() after ON DUPLICATE KEY
-# UPDATE": now LAST_INSERT_ID() will return the id of the updated
-# row.
+# UPDATE": if the row is updated, it's like a regular UPDATE:
+# LAST_INSERT_ID() is not affected.
 CREATE TABLE `t2` (
   `k` int(11) NOT NULL auto_increment,
   `a` int(11) default NULL,
@@ -390,6 +390,12 @@ insert into t2 ( a ) values ( 6 ) on duplicate key update c =
 ifnull( c,
 0 ) + 1;
 select last_insert_id();
+# test again when last_insert_id() is 0 initially
+select last_insert_id(0);
+insert into t2 ( a ) values ( 6 ) on duplicate key update c =
+ifnull( c,
+0 ) + 1;
+select last_insert_id();
 select * from t2;
 
 # Test of LAST_INSERT_ID() when autogenerated will fail:
@@ -402,5 +408,14 @@ insert ignore into t2 values (null,6,1),(null,8,1),(null,15,1),(null,20,1);
 select last_insert_id();
 select * from t2;
 
-drop table t2;
+# Test of the workaround which enables people to know the id of the
+# updated row in INSERT ON DUPLICATE KEY UPDATE, by using
+# LAST_INSERT_ID(autoinc_col) in the UPDATE clause.
 
+insert into t2 ( a ) values ( 6 ) on duplicate key update c =
+ifnull( c,
+0 ) + 1, k=last_insert_id(k);
+select last_insert_id();
+select * from t2;
+
+drop table t2;