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Re: Crash in create_ref_for_key() with maria-5.3-mwl89
Test case :
SET SESSION optimizer_switch='semijoin=off';
--disable_warnings
DROP TABLE /*! IF EXISTS */ CC;
DROP TABLE /*! IF EXISTS */ C;
DROP TABLE /*! IF EXISTS */ B;
--enable_warnings
CREATE TABLE `CC` (
`pk` int(11) NOT NULL AUTO_INCREMENT,
`col_int_nokey` int(11) DEFAULT NULL,
`col_int_key` int(11) DEFAULT NULL,
`col_varchar_key` varchar(1) DEFAULT NULL,
PRIMARY KEY (`pk`),
KEY `col_int_key` (`col_int_key`),
KEY `col_varchar_key` (`col_varchar_key`,`col_int_key`)
) ENGINE=MyISAM AUTO_INCREMENT=30 DEFAULT CHARSET=latin1;
INSERT INTO `CC` VALUES (10,7,8,'v');
INSERT INTO `CC` VALUES (11,1,9,'r');
INSERT INTO `CC` VALUES (12,5,9,'a');
INSERT INTO `CC` VALUES (13,3,186,'m');
INSERT INTO `CC` VALUES (14,6,NULL,'y');
INSERT INTO `CC` VALUES (15,92,2,'j');
INSERT INTO `CC` VALUES (16,7,3,'d');
INSERT INTO `CC` VALUES (17,NULL,0,'z');
INSERT INTO `CC` VALUES (18,3,133,'e');
INSERT INTO `CC` VALUES (19,5,1,'h');
INSERT INTO `CC` VALUES (20,1,8,'b');
INSERT INTO `CC` VALUES (21,2,5,'s');
INSERT INTO `CC` VALUES (22,NULL,5,'e');
INSERT INTO `CC` VALUES (23,1,8,'j');
INSERT INTO `CC` VALUES (24,0,6,'e');
INSERT INTO `CC` VALUES (25,210,51,'f');
INSERT INTO `CC` VALUES (26,8,4,'v');
INSERT INTO `CC` VALUES (27,7,7,'x');
INSERT INTO `CC` VALUES (28,5,6,'m');
INSERT INTO `CC` VALUES (29,NULL,4,'c');
CREATE TABLE `C` (
`pk` int(11) NOT NULL AUTO_INCREMENT,
`col_int_nokey` int(11) DEFAULT NULL,
`col_int_key` int(11) DEFAULT NULL,
`col_varchar_key` varchar(1) DEFAULT NULL,
PRIMARY KEY (`pk`),
KEY `col_int_key` (`col_int_key`),
KEY `col_varchar_key` (`col_varchar_key`,`col_int_key`)
) ENGINE=MyISAM AUTO_INCREMENT=21 DEFAULT CHARSET=latin1;
INSERT INTO `C` VALUES (1,NULL,2,'w');
INSERT INTO `C` VALUES (2,7,9,'m');
INSERT INTO `C` VALUES (3,9,3,'m');
INSERT INTO `C` VALUES (4,7,9,'k');
INSERT INTO `C` VALUES (5,4,NULL,'r');
INSERT INTO `C` VALUES (6,2,9,'t');
INSERT INTO `C` VALUES (7,6,3,'j');
INSERT INTO `C` VALUES (8,8,8,'u');
INSERT INTO `C` VALUES (9,NULL,8,'h');
INSERT INTO `C` VALUES (10,5,53,'o');
INSERT INTO `C` VALUES (11,NULL,0,NULL);
INSERT INTO `C` VALUES (12,6,5,'k');
INSERT INTO `C` VALUES (13,188,166,'e');
INSERT INTO `C` VALUES (14,2,3,'n');
INSERT INTO `C` VALUES (15,1,0,'t');
INSERT INTO `C` VALUES (16,1,1,'c');
INSERT INTO `C` VALUES (17,0,9,'m');
INSERT INTO `C` VALUES (18,9,5,'y');
INSERT INTO `C` VALUES (19,NULL,6,'f');
INSERT INTO `C` VALUES (20,4,2,'d');
CREATE TABLE `B` (
`pk` int(11) NOT NULL AUTO_INCREMENT,
`col_int_nokey` int(11) DEFAULT NULL,
`col_int_key` int(11) DEFAULT NULL,
`col_varchar_key` varchar(1) DEFAULT NULL,
PRIMARY KEY (`pk`),
KEY `col_int_key` (`col_int_key`),
KEY `col_varchar_key` (`col_varchar_key`,`col_int_key`)
) ENGINE=MyISAM AUTO_INCREMENT=2 DEFAULT CHARSET=latin1;
INSERT INTO `B` VALUES (1,1,7,'f');
SELECT `col_int_key`
FROM B
WHERE ( 2 , 6 ) IN (
SELECT SUBQUERY1_t1 .`col_int_nokey` , SUBQUERY1_t1 .`col_int_nokey`
FROM C SUBQUERY1_t1 STRAIGHT_JOIN CC SUBQUERY1_t2 ON SUBQUERY1_t2 .`pk` = SUBQUERY1_t1 .`pk` ) ;
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LPexportBug652727.xml