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Commit 4cf6b18b authored by unknown's avatar unknown
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Fix for LP bug#611625: Removing NULL references from subquery parameter list added. 

Incorrect limitation on number of parameters removed.

mysql-test/r/subselect_cache.result:
  Test suite added.
mysql-test/t/subselect_cache.test:
  Test suite added.
sql/sql_class.h:
  Iterator changed.
sql/sql_expression_cache.cc:
  Incorrect limitation removed.
  Removing NULL references from subquery parameter list added.
parent 26148735
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Showing with 386 additions and 14 deletions
mysql-test/r/subselect_cache.result
View file @ 4cf6b18b
......@@ -2985,3 +2985,201 @@ WHERE table1 .`col_varchar_key` ) field10
1 NULL f
drop table t1,t2,t3,t4;
set @@optimizer_switch= default;
#launchpad BUG#611625
CREATE TABLE `t1` (
`pk` int(11) NOT NULL AUTO_INCREMENT,
`col_int_nokey` int(11) DEFAULT NULL,
`col_varchar_nokey` varchar(1) DEFAULT NULL,
PRIMARY KEY (`pk`)
) ENGINE=MyISAM AUTO_INCREMENT=21 DEFAULT CHARSET=latin1;
INSERT INTO `t1` VALUES (1,NULL,'w');
INSERT INTO `t1` VALUES (2,7,'m');
INSERT INTO `t1` VALUES (3,9,'m');
INSERT INTO `t1` VALUES (4,7,'k');
INSERT INTO `t1` VALUES (5,4,'r');
INSERT INTO `t1` VALUES (6,2,'t');
INSERT INTO `t1` VALUES (7,6,'j');
INSERT INTO `t1` VALUES (8,8,'u');
INSERT INTO `t1` VALUES (9,NULL,'h');
INSERT INTO `t1` VALUES (10,5,'o');
INSERT INTO `t1` VALUES (11,NULL,NULL);
INSERT INTO `t1` VALUES (12,6,'k');
INSERT INTO `t1` VALUES (13,188,'e');
INSERT INTO `t1` VALUES (14,2,'n');
INSERT INTO `t1` VALUES (15,1,'t');
INSERT INTO `t1` VALUES (16,1,'c');
INSERT INTO `t1` VALUES (17,0,'m');
INSERT INTO `t1` VALUES (18,9,'y');
INSERT INTO `t1` VALUES (19,NULL,'f');
INSERT INTO `t1` VALUES (20,4,'d');
CREATE TABLE `t3` (
`pk` int(11) NOT NULL AUTO_INCREMENT,
`col_int_nokey` int(11) DEFAULT NULL,
`col_varchar_nokey` varchar(1) DEFAULT NULL,
PRIMARY KEY (`pk`)
) ENGINE=MyISAM AUTO_INCREMENT=101 DEFAULT CHARSET=latin1;
INSERT INTO `t3` VALUES (1,6,'r');
INSERT INTO `t3` VALUES (2,8,'c');
INSERT INTO `t3` VALUES (3,6,'o');
INSERT INTO `t3` VALUES (4,6,'c');
INSERT INTO `t3` VALUES (5,3,'d');
INSERT INTO `t3` VALUES (6,9,'v');
INSERT INTO `t3` VALUES (7,2,'m');
INSERT INTO `t3` VALUES (8,1,'j');
INSERT INTO `t3` VALUES (9,8,'f');
INSERT INTO `t3` VALUES (10,0,'n');
INSERT INTO `t3` VALUES (11,9,'z');
INSERT INTO `t3` VALUES (12,8,'h');
INSERT INTO `t3` VALUES (13,NULL,'q');
INSERT INTO `t3` VALUES (14,0,'w');
INSERT INTO `t3` VALUES (15,5,'z');
INSERT INTO `t3` VALUES (16,1,'j');
INSERT INTO `t3` VALUES (17,1,'a');
INSERT INTO `t3` VALUES (18,6,'m');
INSERT INTO `t3` VALUES (19,6,'n');
INSERT INTO `t3` VALUES (20,1,'e');
INSERT INTO `t3` VALUES (21,8,'u');
INSERT INTO `t3` VALUES (22,1,'s');
INSERT INTO `t3` VALUES (23,0,'u');
INSERT INTO `t3` VALUES (24,4,'r');
INSERT INTO `t3` VALUES (25,9,'g');
INSERT INTO `t3` VALUES (26,8,'o');
INSERT INTO `t3` VALUES (27,5,'w');
INSERT INTO `t3` VALUES (28,9,'b');
INSERT INTO `t3` VALUES (29,5,NULL);
INSERT INTO `t3` VALUES (30,NULL,'y');
INSERT INTO `t3` VALUES (31,NULL,'y');
INSERT INTO `t3` VALUES (32,105,'u');
INSERT INTO `t3` VALUES (33,0,'p');
INSERT INTO `t3` VALUES (34,3,'s');
INSERT INTO `t3` VALUES (35,1,'e');
INSERT INTO `t3` VALUES (36,75,'d');
INSERT INTO `t3` VALUES (37,9,'d');
INSERT INTO `t3` VALUES (38,7,'c');
INSERT INTO `t3` VALUES (39,NULL,'b');
INSERT INTO `t3` VALUES (40,NULL,'t');
INSERT INTO `t3` VALUES (41,4,NULL);
INSERT INTO `t3` VALUES (42,0,'y');
INSERT INTO `t3` VALUES (43,204,'c');
INSERT INTO `t3` VALUES (44,0,'d');
INSERT INTO `t3` VALUES (45,9,'x');
INSERT INTO `t3` VALUES (46,8,'p');
INSERT INTO `t3` VALUES (47,7,'e');
INSERT INTO `t3` VALUES (48,8,'g');
INSERT INTO `t3` VALUES (49,NULL,'x');
INSERT INTO `t3` VALUES (50,6,'s');
INSERT INTO `t3` VALUES (51,5,'e');
INSERT INTO `t3` VALUES (52,2,'l');
INSERT INTO `t3` VALUES (53,3,'p');
INSERT INTO `t3` VALUES (54,7,'h');
INSERT INTO `t3` VALUES (55,NULL,'m');
INSERT INTO `t3` VALUES (56,145,'n');
INSERT INTO `t3` VALUES (57,0,'v');
INSERT INTO `t3` VALUES (58,1,'b');
INSERT INTO `t3` VALUES (59,7,'x');
INSERT INTO `t3` VALUES (60,3,'r');
INSERT INTO `t3` VALUES (61,NULL,'t');
INSERT INTO `t3` VALUES (62,2,'w');
INSERT INTO `t3` VALUES (63,2,'w');
INSERT INTO `t3` VALUES (64,2,'k');
INSERT INTO `t3` VALUES (65,8,'a');
INSERT INTO `t3` VALUES (66,6,'t');
INSERT INTO `t3` VALUES (67,1,'z');
INSERT INTO `t3` VALUES (68,NULL,'e');
INSERT INTO `t3` VALUES (69,1,'q');
INSERT INTO `t3` VALUES (70,0,'e');
INSERT INTO `t3` VALUES (71,4,'v');
INSERT INTO `t3` VALUES (72,1,'d');
INSERT INTO `t3` VALUES (73,1,'u');
INSERT INTO `t3` VALUES (74,27,'o');
INSERT INTO `t3` VALUES (75,4,'b');
INSERT INTO `t3` VALUES (76,6,'c');
INSERT INTO `t3` VALUES (77,2,'q');
INSERT INTO `t3` VALUES (78,248,NULL);
INSERT INTO `t3` VALUES (79,NULL,'h');
INSERT INTO `t3` VALUES (80,9,'d');
INSERT INTO `t3` VALUES (81,75,'w');
INSERT INTO `t3` VALUES (82,2,'m');
INSERT INTO `t3` VALUES (83,9,'i');
INSERT INTO `t3` VALUES (84,4,'w');
INSERT INTO `t3` VALUES (85,0,'f');
INSERT INTO `t3` VALUES (86,0,'k');
INSERT INTO `t3` VALUES (87,1,'v');
INSERT INTO `t3` VALUES (88,119,'c');
INSERT INTO `t3` VALUES (89,1,'y');
INSERT INTO `t3` VALUES (90,7,'h');
INSERT INTO `t3` VALUES (91,2,NULL);
INSERT INTO `t3` VALUES (92,7,'t');
INSERT INTO `t3` VALUES (93,2,'l');
INSERT INTO `t3` VALUES (94,6,'a');
INSERT INTO `t3` VALUES (95,4,'r');
INSERT INTO `t3` VALUES (96,5,'s');
INSERT INTO `t3` VALUES (97,7,'z');
INSERT INTO `t3` VALUES (98,1,'j');
INSERT INTO `t3` VALUES (99,7,'c');
INSERT INTO `t3` VALUES (100,2,'f');
CREATE TABLE `t2` (
`pk` int(11) NOT NULL AUTO_INCREMENT,
`col_int_nokey` int(11) DEFAULT NULL,
`col_varchar_nokey` varchar(1) DEFAULT NULL,
PRIMARY KEY (`pk`)
) ENGINE=MyISAM AUTO_INCREMENT=11 DEFAULT CHARSET=latin1;
INSERT INTO `t2` VALUES (10,8,NULL);
set optimizer_switch='subquery_cache=off';
SELECT (
SELECT `col_int_nokey`
FROM t3
WHERE table1 .`col_varchar_nokey` ) field13
FROM t2 table1 JOIN t1 table2 ON table2 .`pk`
ORDER BY field13;
field13
NULL
NULL
NULL
NULL
NULL
NULL
NULL
NULL
NULL
NULL
NULL
NULL
NULL
NULL
NULL
NULL
NULL
NULL
NULL
NULL
set optimizer_switch='subquery_cache=on';
SELECT
(SELECT `col_int_nokey`
FROM t3
WHERE table1 .`col_varchar_nokey` ) field13
FROM t2 table1 JOIN t1 table2 ON table2 .`pk`
ORDER BY field13;
field13
NULL
NULL
NULL
NULL
NULL
NULL
NULL
NULL
NULL
NULL
NULL
NULL
NULL
NULL
NULL
NULL
NULL
NULL
NULL
NULL
drop table t1,t2,t3;
set @@optimizer_switch= default;
mysql-test/t/subselect_cache.test
View file @ 4cf6b18b
......@@ -1306,3 +1306,167 @@ GROUP BY field10 ;
drop table t1,t2,t3,t4;
set @@optimizer_switch= default;
#
--echo #launchpad BUG#611625
#
CREATE TABLE `t1` (
`pk` int(11) NOT NULL AUTO_INCREMENT,
`col_int_nokey` int(11) DEFAULT NULL,
`col_varchar_nokey` varchar(1) DEFAULT NULL,
PRIMARY KEY (`pk`)
) ENGINE=MyISAM AUTO_INCREMENT=21 DEFAULT CHARSET=latin1;
INSERT INTO `t1` VALUES (1,NULL,'w');
INSERT INTO `t1` VALUES (2,7,'m');
INSERT INTO `t1` VALUES (3,9,'m');
INSERT INTO `t1` VALUES (4,7,'k');
INSERT INTO `t1` VALUES (5,4,'r');
INSERT INTO `t1` VALUES (6,2,'t');
INSERT INTO `t1` VALUES (7,6,'j');
INSERT INTO `t1` VALUES (8,8,'u');
INSERT INTO `t1` VALUES (9,NULL,'h');
INSERT INTO `t1` VALUES (10,5,'o');
INSERT INTO `t1` VALUES (11,NULL,NULL);
INSERT INTO `t1` VALUES (12,6,'k');
INSERT INTO `t1` VALUES (13,188,'e');
INSERT INTO `t1` VALUES (14,2,'n');
INSERT INTO `t1` VALUES (15,1,'t');
INSERT INTO `t1` VALUES (16,1,'c');
INSERT INTO `t1` VALUES (17,0,'m');
INSERT INTO `t1` VALUES (18,9,'y');
INSERT INTO `t1` VALUES (19,NULL,'f');
INSERT INTO `t1` VALUES (20,4,'d');
CREATE TABLE `t3` (
`pk` int(11) NOT NULL AUTO_INCREMENT,
`col_int_nokey` int(11) DEFAULT NULL,
`col_varchar_nokey` varchar(1) DEFAULT NULL,
PRIMARY KEY (`pk`)
) ENGINE=MyISAM AUTO_INCREMENT=101 DEFAULT CHARSET=latin1;
INSERT INTO `t3` VALUES (1,6,'r');
INSERT INTO `t3` VALUES (2,8,'c');
INSERT INTO `t3` VALUES (3,6,'o');
INSERT INTO `t3` VALUES (4,6,'c');
INSERT INTO `t3` VALUES (5,3,'d');
INSERT INTO `t3` VALUES (6,9,'v');
INSERT INTO `t3` VALUES (7,2,'m');
INSERT INTO `t3` VALUES (8,1,'j');
INSERT INTO `t3` VALUES (9,8,'f');
INSERT INTO `t3` VALUES (10,0,'n');
INSERT INTO `t3` VALUES (11,9,'z');
INSERT INTO `t3` VALUES (12,8,'h');
INSERT INTO `t3` VALUES (13,NULL,'q');
INSERT INTO `t3` VALUES (14,0,'w');
INSERT INTO `t3` VALUES (15,5,'z');
INSERT INTO `t3` VALUES (16,1,'j');
INSERT INTO `t3` VALUES (17,1,'a');
INSERT INTO `t3` VALUES (18,6,'m');
INSERT INTO `t3` VALUES (19,6,'n');
INSERT INTO `t3` VALUES (20,1,'e');
INSERT INTO `t3` VALUES (21,8,'u');
INSERT INTO `t3` VALUES (22,1,'s');
INSERT INTO `t3` VALUES (23,0,'u');
INSERT INTO `t3` VALUES (24,4,'r');
INSERT INTO `t3` VALUES (25,9,'g');
INSERT INTO `t3` VALUES (26,8,'o');
INSERT INTO `t3` VALUES (27,5,'w');
INSERT INTO `t3` VALUES (28,9,'b');
INSERT INTO `t3` VALUES (29,5,NULL);
INSERT INTO `t3` VALUES (30,NULL,'y');
INSERT INTO `t3` VALUES (31,NULL,'y');
INSERT INTO `t3` VALUES (32,105,'u');
INSERT INTO `t3` VALUES (33,0,'p');
INSERT INTO `t3` VALUES (34,3,'s');
INSERT INTO `t3` VALUES (35,1,'e');
INSERT INTO `t3` VALUES (36,75,'d');
INSERT INTO `t3` VALUES (37,9,'d');
INSERT INTO `t3` VALUES (38,7,'c');
INSERT INTO `t3` VALUES (39,NULL,'b');
INSERT INTO `t3` VALUES (40,NULL,'t');
INSERT INTO `t3` VALUES (41,4,NULL);
INSERT INTO `t3` VALUES (42,0,'y');
INSERT INTO `t3` VALUES (43,204,'c');
INSERT INTO `t3` VALUES (44,0,'d');
INSERT INTO `t3` VALUES (45,9,'x');
INSERT INTO `t3` VALUES (46,8,'p');
INSERT INTO `t3` VALUES (47,7,'e');
INSERT INTO `t3` VALUES (48,8,'g');
INSERT INTO `t3` VALUES (49,NULL,'x');
INSERT INTO `t3` VALUES (50,6,'s');
INSERT INTO `t3` VALUES (51,5,'e');
INSERT INTO `t3` VALUES (52,2,'l');
INSERT INTO `t3` VALUES (53,3,'p');
INSERT INTO `t3` VALUES (54,7,'h');
INSERT INTO `t3` VALUES (55,NULL,'m');
INSERT INTO `t3` VALUES (56,145,'n');
INSERT INTO `t3` VALUES (57,0,'v');
INSERT INTO `t3` VALUES (58,1,'b');
INSERT INTO `t3` VALUES (59,7,'x');
INSERT INTO `t3` VALUES (60,3,'r');
INSERT INTO `t3` VALUES (61,NULL,'t');
INSERT INTO `t3` VALUES (62,2,'w');
INSERT INTO `t3` VALUES (63,2,'w');
INSERT INTO `t3` VALUES (64,2,'k');
INSERT INTO `t3` VALUES (65,8,'a');
INSERT INTO `t3` VALUES (66,6,'t');
INSERT INTO `t3` VALUES (67,1,'z');
INSERT INTO `t3` VALUES (68,NULL,'e');
INSERT INTO `t3` VALUES (69,1,'q');
INSERT INTO `t3` VALUES (70,0,'e');
INSERT INTO `t3` VALUES (71,4,'v');
INSERT INTO `t3` VALUES (72,1,'d');
INSERT INTO `t3` VALUES (73,1,'u');
INSERT INTO `t3` VALUES (74,27,'o');
INSERT INTO `t3` VALUES (75,4,'b');
INSERT INTO `t3` VALUES (76,6,'c');
INSERT INTO `t3` VALUES (77,2,'q');
INSERT INTO `t3` VALUES (78,248,NULL);
INSERT INTO `t3` VALUES (79,NULL,'h');
INSERT INTO `t3` VALUES (80,9,'d');
INSERT INTO `t3` VALUES (81,75,'w');
INSERT INTO `t3` VALUES (82,2,'m');
INSERT INTO `t3` VALUES (83,9,'i');
INSERT INTO `t3` VALUES (84,4,'w');
INSERT INTO `t3` VALUES (85,0,'f');
INSERT INTO `t3` VALUES (86,0,'k');
INSERT INTO `t3` VALUES (87,1,'v');
INSERT INTO `t3` VALUES (88,119,'c');
INSERT INTO `t3` VALUES (89,1,'y');
INSERT INTO `t3` VALUES (90,7,'h');
INSERT INTO `t3` VALUES (91,2,NULL);
INSERT INTO `t3` VALUES (92,7,'t');
INSERT INTO `t3` VALUES (93,2,'l');
INSERT INTO `t3` VALUES (94,6,'a');
INSERT INTO `t3` VALUES (95,4,'r');
INSERT INTO `t3` VALUES (96,5,'s');
INSERT INTO `t3` VALUES (97,7,'z');
INSERT INTO `t3` VALUES (98,1,'j');
INSERT INTO `t3` VALUES (99,7,'c');
INSERT INTO `t3` VALUES (100,2,'f');
CREATE TABLE `t2` (
`pk` int(11) NOT NULL AUTO_INCREMENT,
`col_int_nokey` int(11) DEFAULT NULL,
`col_varchar_nokey` varchar(1) DEFAULT NULL,
PRIMARY KEY (`pk`)
) ENGINE=MyISAM AUTO_INCREMENT=11 DEFAULT CHARSET=latin1;
INSERT INTO `t2` VALUES (10,8,NULL);
set optimizer_switch='subquery_cache=off';
SELECT (
SELECT `col_int_nokey`
FROM t3
WHERE table1 .`col_varchar_nokey` ) field13
FROM t2 table1 JOIN t1 table2 ON table2 .`pk`
ORDER BY field13;
set optimizer_switch='subquery_cache=on';
SELECT
(SELECT `col_int_nokey`
FROM t3
WHERE table1 .`col_varchar_nokey` ) field13
FROM t2 table1 JOIN t1 table2 ON table2 .`pk`
ORDER BY field13;
drop table t1,t2,t3;
set @@optimizer_switch= default;
sql/sql_class.h
View file @ 4cf6b18b
......@@ -62,9 +62,9 @@ class Item_iterator
class Item_iterator_ref_list: public Item_iterator
{
List_iterator_fast<Item*> list;
List_iterator<Item*> list;
public:
Item_iterator_ref_list(List_iterator_fast<Item*> &arg_list):
Item_iterator_ref_list(List_iterator<Item*> &arg_list):
list(arg_list) {}
void open() { list.rewind(); }
Item *next() { return *(list++); }
......
sql/sql_expression_cache.cc
View file @ 4cf6b18b
......@@ -96,21 +96,38 @@ static uint field_enumerator(uchar *arg)
void Expression_cache_tmptable::init()
{
List_iterator_fast<Item*> li(*list);
List_iterator<Item*> li(*list);
Item_iterator_ref_list it(li);
Item **item;
uint field_counter;
DBUG_ENTER("Expression_cache_tmptable::init");
DBUG_ASSERT(!inited);
inited= TRUE;
cache_table= NULL;
if (!(ULONGLONG_MAX >> (list->elements + 1)))
while ((item= li++))
{
DBUG_PRINT("info", ("Too many dependencies"));
DBUG_VOID_RETURN;
DBUG_ASSERT(item);
if (*item)
{
DBUG_ASSERT((*item)->fixed);
items.push_back((*item));
}
else
{
/*
This is possible when optimizer already executed this subquery and
optimized out the condition predicate.
*/
li.remove();
}
}
cache_table= NULL;
if (list->elements == 0)
{
DBUG_PRINT("info", ("All parameters were removed by optimizer."));
DBUG_VOID_RETURN;
}
cache_table_param.init();
/* dependent items and result */
......@@ -119,13 +136,6 @@ void Expression_cache_tmptable::init()
cache_table_param.skip_create_table= 1;
cache_table= NULL;
while ((item= li++))
{
DBUG_ASSERT(item);
DBUG_ASSERT(*item);
DBUG_ASSERT((*item)->fixed);
items.push_back((*item));
}
items.push_front(val);
if (!(cache_table= create_tmp_table(table_thd, &cache_table_param,
......
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