mirror of
https://github.com/MariaDB/server.git
synced 2025-10-31 15:50:51 +03:00
618 lines
20 KiB
Plaintext
618 lines
20 KiB
Plaintext
set @subselect_innodb_tmp=@@optimizer_switch;
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set optimizer_switch='mrr=on,mrr_sort_keys=on,index_condition_pushdown=on';
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drop table if exists t1,t2,t3;
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CREATE TABLE t1
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(
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FOLDERID VARCHAR(32)BINARY NOT NULL
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, FOLDERNAME VARCHAR(255)BINARY NOT NULL
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, CREATOR VARCHAR(255)BINARY
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, CREATED TIMESTAMP NOT NULL
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, DESCRIPTION VARCHAR(255)BINARY
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, FOLDERTYPE INTEGER NOT NULL
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, MODIFIED TIMESTAMP
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, MODIFIER VARCHAR(255)BINARY
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, FOLDERSIZE INTEGER NOT NULL
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, PARENTID VARCHAR(32)BINARY
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, REPID VARCHAR(32)BINARY
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, ORIGINATOR INTEGER
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, PRIMARY KEY ( FOLDERID )
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) ENGINE=InnoDB;
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CREATE INDEX FFOLDERID_IDX ON t1 (FOLDERID);
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CREATE INDEX CMFLDRPARNT_IDX ON t1 (PARENTID);
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INSERT INTO t1 VALUES("0c9aab05b15048c59bc35c8461507deb", "System", "System", "2003-06-05 16:30:00", "The system content repository folder.", "3", "2003-06-05 16:30:00", "System", "0", NULL, "9c9aab05b15048c59bc35c8461507deb", "1");
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INSERT INTO t1 VALUES("2f6161e879db43c1a5b82c21ddc49089", "Default", "System", "2003-06-09 10:52:02", "The default content repository folder.", "3", "2003-06-05 16:30:00", "System", "0", NULL, "03eea05112b845949f3fd03278b5fe43", "1");
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INSERT INTO t1 VALUES("c373e9f5ad0791724315444553544200", "AddDocumentTest", "admin", "2003-06-09 10:51:25", "Movie Reviews", "0", "2003-06-09 10:51:25", "admin", "0", "2f6161e879db43c1a5b82c21ddc49089", "03eea05112b845949f3fd03278b5fe43", NULL);
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SELECT 'c373e9f5ad0791a0dab5444553544200' IN(SELECT t1.FOLDERID FROM t1 WHERE t1.PARENTID='2f6161e879db43c1a5b82c21ddc49089' AND t1.FOLDERNAME = 'Level1');
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'c373e9f5ad0791a0dab5444553544200' IN(SELECT t1.FOLDERID FROM t1 WHERE t1.PARENTID='2f6161e879db43c1a5b82c21ddc49089' AND t1.FOLDERNAME = 'Level1')
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0
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drop table t1;
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create table t1 (a int) engine=innodb;
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create table t2 (a int) engine=innodb;
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create table t3 (a int) engine=innodb;
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insert into t1 values (1),(2),(3),(4);
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insert into t2 values (10),(20),(30),(40);
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insert into t3 values (1),(2),(10),(50);
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select a from t3 where t3.a in (select a from t1 where a <= 3 union select * from t2 where a <= 30);
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a
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1
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2
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10
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drop table t1,t2,t3;
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CREATE TABLE t1 (
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processor_id INTEGER NOT NULL,
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PRIMARY KEY (processor_id)
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) ENGINE=InnoDB;
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CREATE TABLE t3 (
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yod_id BIGINT UNSIGNED AUTO_INCREMENT NOT NULL,
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login_processor INTEGER UNSIGNED ,
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PRIMARY KEY (yod_id)
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) ENGINE=InnoDB;
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CREATE TABLE t2 (
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processor_id INTEGER NOT NULL,
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yod_id BIGINT UNSIGNED NOT NULL,
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PRIMARY KEY (processor_id, yod_id),
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INDEX (processor_id),
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INDEX (yod_id),
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FOREIGN KEY (processor_id) REFERENCES t1(processor_id),
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FOREIGN KEY (yod_id) REFERENCES t3(yod_id)
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) ENGINE=InnoDB;
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INSERT INTO t1 VALUES (1),(2),(3);
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INSERT INTO t3 VALUES (1,1),(2,2),(3,3);
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INSERT INTO t2 VALUES (1,1),(2,2),(3,3);
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SELECT distinct p1.processor_id, (SELECT y.yod_id FROM t1 p2, t2 y WHERE p2.processor_id = p1.processor_id and p2.processor_id = y.processor_id) FROM t1 p1;
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processor_id (SELECT y.yod_id FROM t1 p2, t2 y WHERE p2.processor_id = p1.processor_id and p2.processor_id = y.processor_id)
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1 1
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2 2
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3 3
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drop table t2,t1,t3;
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CREATE TABLE t1 (
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id int(11) NOT NULL default '0',
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b int(11) default NULL,
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c char(3) default NULL,
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PRIMARY KEY (id),
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KEY t2i1 (b)
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) ENGINE=innodb DEFAULT CHARSET=latin1;
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INSERT INTO t1 VALUES (0,0,'GPL'),(1,0,'GPL'),(2,1,'GPL'),(3,2,'GPL');
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CREATE TABLE t2 (
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id int(11) NOT NULL default '0',
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b int(11) default NULL,
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c char(3) default NULL,
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PRIMARY KEY (id),
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KEY t2i (b)
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) ENGINE=innodb DEFAULT CHARSET=latin1;
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INSERT INTO t2 VALUES (0,0,'GPL'),(1,0,'GPL'),(2,1,'GPL'),(3,2,'GPL');
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select (select max(id) from t2 where b=1 group by b) as x,b from t1 where b=1;
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x b
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2 1
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drop table t1,t2;
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create table t1 (id int not null, value char(255), primary key(id)) engine=innodb;
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create table t2 (id int not null, value char(255)) engine=innodb;
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insert into t1 values (1,'a'),(2,'b');
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insert into t2 values (1,'z'),(2,'x');
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select t2.id,t2.value,(select t1.value from t1 where t1.id=t2.id) from t2;
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id value (select t1.value from t1 where t1.id=t2.id)
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1 z a
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2 x b
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select t2.id,t2.value,(select t1.value from t1 where t1.id=t2.id) from t2;
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id value (select t1.value from t1 where t1.id=t2.id)
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1 z a
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2 x b
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drop table t1,t2;
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create table t1 (a int, b int) engine=innodb;
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insert into t1 values (1,2), (1,3), (2,3), (2,4), (2,5), (3,4), (4,5), (4,100);
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create table t2 (a int) engine=innodb;
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insert into t2 values (1),(2),(3),(4);
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select a, sum(b) as b from t1 group by a having b > (select max(a) from t2);
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a b
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1 5
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2 12
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4 105
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drop table t1, t2;
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CREATE TABLE `t1` ( `unit` varchar(50) NOT NULL default '', `ingredient` varchar(50) NOT NULL default '') ENGINE=InnoDB DEFAULT CHARSET=latin1;
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CREATE TABLE `t2` ( `ingredient` varchar(50) NOT NULL default '', `unit` varchar(50) NOT NULL default '', PRIMARY KEY (ingredient, unit)) ENGINE=InnoDB DEFAULT CHARSET=latin1;
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INSERT INTO `t1` VALUES ('xx','yy');
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INSERT INTO `t2` VALUES ('yy','xx');
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SELECT R.unit, R.ingredient FROM t1 R WHERE R.ingredient IN (SELECT N.ingredient FROM t2 N WHERE N.unit = R.unit);
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unit ingredient
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xx yy
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drop table t1, t2;
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CREATE TABLE t1 (
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id INT NOT NULL auto_increment,
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date1 DATE, coworkerid INT,
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description VARCHAR(255),
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sum_used DOUBLE,
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sum_remaining DOUBLE,
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comments VARCHAR(255),
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PRIMARY KEY(id)
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) engine=innodb;
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insert into t1 values (NULL, '1999-01-01', 1,'test', 22, 33, 'comment'), (NULL, '1999-01-01', 1,'test', 22, 33, 'comment'), (NULL, '1999-01-01', 1,'test', 22, 33, 'comment'), (NULL, '1998-01-01', 1,'test', 22, 33, 'comment'), (NULL, '1998-01-01', 1,'test', 22, 33, 'comment'), (NULL, '2004-01-01', 1,'test', 22, 33, 'comment'), (NULL, '2004-01-01', 1,'test', 22, 33, 'comment');
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SELECT DISTINCT
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(SELECT sum(sum_used) FROM t1 WHERE sum_used > 0 AND year(date1) <= '2004') as somallontvangsten,
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(SELECT sum(sum_used) FROM t1 WHERE sum_used < 0 AND year(date1) <= '2004') as somalluitgaven
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FROM t1;
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somallontvangsten somalluitgaven
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154 NULL
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select * from t1;
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id date1 coworkerid description sum_used sum_remaining comments
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1 1999-01-01 1 test 22 33 comment
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2 1999-01-01 1 test 22 33 comment
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3 1999-01-01 1 test 22 33 comment
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4 1998-01-01 1 test 22 33 comment
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5 1998-01-01 1 test 22 33 comment
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6 2004-01-01 1 test 22 33 comment
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7 2004-01-01 1 test 22 33 comment
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drop table t1;
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CREATE TABLE `t1` ( `a` char(3) NOT NULL default '', `b` char(3) NOT NULL default '', `c` char(3) NOT NULL default '', PRIMARY KEY (`a`,`b`,`c`)) ENGINE=InnoDB;
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CREATE TABLE t2 LIKE t1;
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INSERT INTO t1 VALUES (1,1,1);
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INSERT INTO t2 VALUES (1,1,1);
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PREPARE my_stmt FROM "SELECT t1.b, count(*) FROM t1 group by t1.b having
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count(*) > ALL (SELECT COUNT(*) FROM t2 WHERE t2.a=1 GROUP By t2.b)";
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EXECUTE my_stmt;
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b count(*)
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EXECUTE my_stmt;
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b count(*)
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deallocate prepare my_stmt;
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drop table t1,t2;
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CREATE TABLE t1 (
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school_name varchar(45) NOT NULL,
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country varchar(45) NOT NULL,
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funds_requested float NOT NULL,
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schooltype varchar(45) NOT NULL
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) ENGINE=InnoDB DEFAULT CHARSET=utf8;
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insert into t1 values ("the school", "USA", 1200, "Human");
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select count(country) as countrycount, sum(funds_requested) as smcnt,
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country, (select sum(funds_requested) from t1) as total_funds
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from t1
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group by country;
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countrycount smcnt country total_funds
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1 1200 USA 1200
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select count(country) as countrycount, sum(funds_requested) as smcnt,
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country, (select sum(funds_requested) from t1) as total_funds
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from t1
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group by country;
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countrycount smcnt country total_funds
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1 1200 USA 1200
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drop table t1;
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CREATE TABLE `t1` (
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`t3_id` int NOT NULL,
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`t1_id` int NOT NULL,
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PRIMARY KEY (`t1_id`)
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);
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CREATE TABLE `t2` (
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`t2_id` int NOT NULL,
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`t1_id` int NOT NULL,
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`b` int NOT NULL,
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PRIMARY KEY (`t2_id`),
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UNIQUE KEY `idx_t2_t1_b` (`t1_id`,`b`)
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) ENGINE=InnoDB;
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CREATE TABLE `t3` (
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`t3_id` int NOT NULL
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);
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INSERT INTO `t3` VALUES (3);
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select
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(SELECT rs.t2_id
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FROM t2 rs
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WHERE rs.t1_id=
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(SELECT lt.t1_id
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FROM t1 lt
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WHERE lt.t3_id=a.t3_id)
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ORDER BY b DESC LIMIT 1)
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from t3 AS a;
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(SELECT rs.t2_id
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FROM t2 rs
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WHERE rs.t1_id=
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(SELECT lt.t1_id
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FROM t1 lt
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WHERE lt.t3_id=a.t3_id)
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ORDER BY b DESC LIMIT 1)
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NULL
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DROP PROCEDURE IF EXISTS p1;
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create procedure p1()
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begin
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declare done int default 3;
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repeat
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select
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(SELECT rs.t2_id
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FROM t2 rs
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WHERE rs.t1_id=
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(SELECT lt.t1_id
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FROM t1 lt
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WHERE lt.t3_id=a.t3_id)
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ORDER BY b DESC LIMIT 1) as x
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from t3 AS a;
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set done= done-1;
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until done <= 0 end repeat;
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end//
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call p1();
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x
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NULL
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x
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NULL
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x
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NULL
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call p1();
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x
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NULL
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x
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NULL
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x
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NULL
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call p1();
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x
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NULL
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x
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NULL
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x
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NULL
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drop procedure p1;
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drop tables t1,t2,t3;
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#
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# Bug #58756
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# Crash in heap_rrnd on query with HAVING ... IN (subquery) + LIMIT
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#
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CREATE TABLE t1 (
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col_time_key time DEFAULT NULL,
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col_datetime_key datetime DEFAULT NULL,
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col_varchar_nokey varchar(1) DEFAULT NULL,
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KEY col_time_key (col_time_key),
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KEY col_datetime_key (col_datetime_key)
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) ENGINE=InnoDB DEFAULT CHARSET=latin1;
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INSERT INTO t1 VALUES ('17:53:30','2005-11-10 12:40:29','h');
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INSERT INTO t1 VALUES ('11:35:49','2009-04-25 00:00:00','b');
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INSERT INTO t1 VALUES (NULL,'2002-11-27 00:00:00','s');
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INSERT INTO t1 VALUES ('06:01:40','2004-01-26 20:32:32','e');
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INSERT INTO t1 VALUES ('05:45:11','2007-10-26 11:41:40','j');
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INSERT INTO t1 VALUES ('00:00:00','2005-10-07 00:00:00','e');
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INSERT INTO t1 VALUES ('00:00:00','2000-07-15 05:00:34','f');
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INSERT INTO t1 VALUES ('06:11:01','2000-04-03 16:33:32','v');
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INSERT INTO t1 VALUES ('13:02:46',NULL,'x');
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INSERT INTO t1 VALUES ('21:44:25','2001-04-25 01:26:12','m');
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INSERT INTO t1 VALUES ('22:43:58','2000-12-27 00:00:00','c');
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CREATE TABLE t2 (
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col_time_key time DEFAULT NULL,
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col_datetime_key datetime DEFAULT NULL,
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col_varchar_nokey varchar(1) DEFAULT NULL,
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KEY col_time_key (col_time_key),
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KEY col_datetime_key (col_datetime_key)
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) ENGINE=InnoDB DEFAULT CHARSET=latin1;
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INSERT INTO t2 VALUES ('11:28:45','2004-10-11 18:13:16','w');
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SELECT col_time_key, col_datetime_key
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FROM
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( SELECT * FROM t1 ) AS table1
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HAVING ( 'r' , 'e' ) IN
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( SELECT col_varchar_nokey , col_varchar_nokey FROM t2 )
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ORDER BY col_datetime_key
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LIMIT 10;
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col_time_key col_datetime_key
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DROP TABLE t1;
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DROP TABLE t2;
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# End of Bug #58756
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#
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# Bug#60085 crash in Item::save_in_field() with time data type
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#
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CREATE TABLE t1(a date, b int, unique(b), unique(a), key(b)) engine=innodb;
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INSERT INTO t1 VALUES ('2011-05-13', 0);
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SELECT * FROM t1 WHERE b < (SELECT CAST(a as date) FROM t1 GROUP BY a);
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a b
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2011-05-13 0
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DROP TABLE t1;
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#
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# Bug #11766300 59387: FAILING ASSERTION: CURSOR->POS_STATE == 1997660512 (BTR_PCUR_IS_POSITIONE
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#
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CREATE TABLE t1 (a INT) ENGINE=INNODB;
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INSERT INTO t1 VALUES (0);
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CREATE TABLE t2 (d BINARY(2), PRIMARY KEY (d(1)), UNIQUE KEY (d)) ENGINE=INNODB;
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SELECT 1 FROM t1 WHERE NOT EXISTS
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(SELECT 1 FROM t2 WHERE d = (SELECT d FROM t2 WHERE a >= 1) ORDER BY d);
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1
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1
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EXPLAIN SELECT 1 FROM t1 WHERE NOT EXISTS
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(SELECT 1 FROM t2 WHERE d = (SELECT d FROM t2 WHERE a >= 1) ORDER BY d);
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY t1 ALL NULL NULL NULL NULL 1 Using where
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2 DEPENDENT SUBQUERY t2 eq_ref PRIMARY,d PRIMARY 1 func 1 Using where
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3 DEPENDENT SUBQUERY t2 index NULL d 2 NULL 1 Using index
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DROP TABLE t2;
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CREATE TABLE t2 (b INT, c INT, UNIQUE KEY (b), UNIQUE KEY (b, c )) ENGINE=INNODB;
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INSERT INTO t2 VALUES (1, 1);
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SELECT 1 FROM t1
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WHERE a != (SELECT 1 FROM t2 WHERE a <=> b OR a > '' AND 6 = 7 ORDER BY b, c);
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1
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DROP TABLE t1, t2;
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#
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# Bug #13639204 64111: CRASH ON SELECT SUBQUERY WITH NON UNIQUE
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# INDEX
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#
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CREATE TABLE t1 (
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id int
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) ENGINE=InnoDB;
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INSERT INTO t1 (id) VALUES (11);
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CREATE TABLE t2 (
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t1_id int,
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position int,
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KEY t1_id (t1_id),
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KEY t1_id_position (t1_id,position)
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) ENGINE=InnoDB;
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EXPLAIN SELECT
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(SELECT position FROM t2
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WHERE t2.t1_id = t1.id
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ORDER BY t2.t1_id , t2.position
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LIMIT 10,1
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) AS maxkey
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FROM t1
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LIMIT 1;
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY t1 ALL NULL NULL NULL NULL 1
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2 DEPENDENT SUBQUERY t2 ref t1_id,t1_id_position t1_id_position 5 test.t1.id 1 Using where; Using index
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SELECT
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(SELECT position FROM t2
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WHERE t2.t1_id = t1.id
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ORDER BY t2.t1_id , t2.position
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LIMIT 10,1
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) AS maxkey
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FROM t1
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LIMIT 1;
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maxkey
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NULL
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DROP TABLE t1,t2;
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End of 5.1 tests
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#
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# lp:827416 Crash in select_describe() on EXPLAIN with DISTINCT in nested subqueries
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#
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CREATE TABLE t3 ( b int) ENGINE=InnoDB;
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CREATE TABLE t2 ( c int) ENGINE=InnoDB;
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CREATE TABLE t1 ( a int NOT NULL , PRIMARY KEY (a)) ENGINE=InnoDB;
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EXPLAIN SELECT *
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FROM t1
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WHERE t1.a = (
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SELECT SUM( c )
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FROM t2
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WHERE (SELECT DISTINCT b FROM t3) > 0);
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
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2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE
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3 SUBQUERY t3 ALL NULL NULL NULL NULL 1 Using temporary
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SELECT *
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FROM t1
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WHERE t1.a = (
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SELECT SUM( c )
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FROM t2
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WHERE (SELECT DISTINCT b FROM t3) > 0);
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a
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DROP TABLE t1, t2, t3;
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#
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# lp:858148 Fourth crash in select_describe() with nested subqueries
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#
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CREATE TABLE t1 ( f1 int(11)) ENGINE=InnoDB;
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CREATE TABLE t2 ( f1 int(11), f2 int(11), PRIMARY KEY (f1)) ;
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CREATE TABLE t3 ( f3 int(11)) ENGINE=InnoDB;
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EXPLAIN
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SELECT MAX( f1 ) FROM t2
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WHERE f2 >= (
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SELECT SUM( f1 )
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FROM t1
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WHERE EXISTS (
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SELECT f3
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FROM t3
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GROUP BY 1
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)
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);
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
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2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE
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3 SUBQUERY t3 ALL NULL NULL NULL NULL 1
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SELECT MAX( f1 ) FROM t2
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WHERE f2 >= (
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SELECT SUM( f1 )
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FROM t1
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WHERE EXISTS (
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SELECT f3
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|
FROM t3
|
|
GROUP BY 1
|
|
)
|
|
);
|
|
MAX( f1 )
|
|
NULL
|
|
drop table t1, t2, t3;
|
|
#
|
|
# LP BUG#1006231 crash in select_describe
|
|
#
|
|
create table t1(a1 int) ENGINE=InnoDB;
|
|
insert into t1 values (1);
|
|
explain
|
|
select 1 from t1 where 1 like (select 1 from t1 where 1 <=> (select 1 from t1 group by a1));
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 ALL NULL NULL NULL NULL 1
|
|
2 SUBQUERY t1 ALL NULL NULL NULL NULL 1
|
|
3 SUBQUERY t1 ALL NULL NULL NULL NULL 1 Using temporary; Using filesort
|
|
select 1 from t1 where 1 like (select 1 from t1 where 1 <=> (select 1 from t1 group by a1));
|
|
1
|
|
1
|
|
drop table t1;
|
|
#
|
|
# MDEV-3988 crash in create_tmp_table
|
|
#
|
|
drop table if exists `t1`,`t2`;
|
|
Warnings:
|
|
Note 1051 Unknown table 'test.t1'
|
|
Note 1051 Unknown table 'test.t2'
|
|
create table `t1`(`a` char(1) character set utf8)engine=innodb;
|
|
create table `t2`(`b` char(1) character set utf8)engine=memory;
|
|
select distinct (select 1 from `t2` where `a`) `d2` from `t1`;
|
|
d2
|
|
select distinct (select 1 from `t2` where `a`) `d2`, a from `t1`;
|
|
d2 a
|
|
select distinct a, (select 1 from `t2` where `a`) `d2` from `t1`;
|
|
a d2
|
|
select distinct (1 + (select 1 from `t2` where `a`)) `d2` from `t1`;
|
|
d2
|
|
drop table t1,t2;
|
|
#
|
|
# MDEV-4042: Assertion `table->key_read == 0' fails in close_thread_table on EXPLAIN with GROUP BY and HAVING in EXISTS SQ,
|
|
# MDEV-4536: ...sql/sql_base.cc:1598: bool close_thread_table(THD*, TABLE**): Assertion `table->key_read == 0' failed.
|
|
CREATE TABLE t1 (a INT) ENGINE=InnoDB;
|
|
CREATE TABLE t2 (b INT PRIMARY KEY, c INT) ENGINE=InnoDB;
|
|
CREATE TABLE t3 (d INT) ENGINE=InnoDB;
|
|
EXPLAIN
|
|
SELECT * FROM t1 WHERE EXISTS ( SELECT b FROM t2, t3 GROUP BY b HAVING b != 3 );
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE
|
|
2 SUBQUERY t2 index NULL PRIMARY 4 NULL 1 Using index; Using temporary; Using filesort
|
|
2 SUBQUERY t3 ALL NULL NULL NULL NULL 1 Using join buffer (flat, BNL join)
|
|
SELECT * FROM t1 WHERE EXISTS ( SELECT b FROM t2, t3 GROUP BY b HAVING b != 3 );
|
|
a
|
|
DROP TABLE t1,t2,t3;
|
|
CREATE TABLE t1 (
|
|
pk int auto_increment primary key,
|
|
col_int_key int(11),
|
|
key col_int_key (col_int_key),col_varchar_key varchar(128),
|
|
key (col_varchar_key)
|
|
) engine=innodb;
|
|
EXPLAIN
|
|
SELECT 1 FROM t1 AS alias1
|
|
WHERE EXISTS ( SELECT SQ2_alias1 . col_int_key AS SQ2_field1
|
|
FROM ( t1 AS SQ2_alias1 RIGHT OUTER JOIN
|
|
t1 AS SQ2_alias2 ON (SQ2_alias2 . col_int_key = SQ2_alias1 . col_int_key )
|
|
)
|
|
GROUP BY SQ2_field1
|
|
HAVING SQ2_alias1 . col_int_key >= 7
|
|
);
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE
|
|
2 SUBQUERY SQ2_alias2 index NULL col_int_key 5 NULL 1 Using index; Using temporary; Using filesort
|
|
2 SUBQUERY SQ2_alias1 ref col_int_key col_int_key 5 test.SQ2_alias2.col_int_key 1 Using where; Using index
|
|
SELECT 1 FROM t1 AS alias1
|
|
WHERE EXISTS ( SELECT SQ2_alias1 . col_int_key AS SQ2_field1
|
|
FROM ( t1 AS SQ2_alias1 RIGHT OUTER JOIN
|
|
t1 AS SQ2_alias2 ON (SQ2_alias2 . col_int_key = SQ2_alias1 . col_int_key )
|
|
)
|
|
GROUP BY SQ2_field1
|
|
HAVING SQ2_alias1 . col_int_key >= 7
|
|
);
|
|
1
|
|
drop table t1;
|
|
set optimizer_switch=@subselect_innodb_tmp;
|
|
#
|
|
# MDEV-9635:Server crashes in part_of_refkey or assertion
|
|
# `!created && key_to_save < (int)s->keys' failed in
|
|
# TABLE::use_index(int) or with join_cache_level>2
|
|
#
|
|
SET join_cache_level=3;
|
|
CREATE TABLE t1 (f1 VARCHAR(1024)) ENGINE=InnoDB;
|
|
CREATE ALGORITHM=TEMPTABLE VIEW v1 AS SELECT * FROM t1;
|
|
CREATE TABLE t2 (f2 VARCHAR(4)) ENGINE=InnoDB;
|
|
INSERT INTO t2 VALUES ('foo'),('bar');
|
|
SELECT * FROM v1, t2 WHERE ( f1, f2 ) IN ( SELECT f1, f1 FROM t1 );
|
|
f1 f2
|
|
set join_cache_level = default;
|
|
drop view v1;
|
|
drop table t1,t2;
|
|
#
|
|
# MDEV-10693: cost-based choice between materialization and in-to-exists
|
|
# for a subquery from the expression used in ref access
|
|
#
|
|
CREATE TABLE t1 (i1 INT PRIMARY KEY) ENGINE=InnoDB;
|
|
INSERT INTO t1 VALUES (1),(2);
|
|
CREATE TABLE t2 (i2 INT) ENGINE=InnoDB;
|
|
CREATE TABLE t3 (i3 INT PRIMARY KEY) ENGINE=InnoDB;
|
|
INSERT INTO t3 VALUES (3);
|
|
SELECT * FROM t1
|
|
WHERE NULL IN ( SELECT i2 FROM t2
|
|
WHERE i1 IN ( i2 IN ( SELECT i3 FROM t3 ) ) AND i2 = 2 );
|
|
i1
|
|
DROP TABLE t1,t2,t3;
|
|
#
|
|
# MDEV-6041: ORDER BY+subqueries: subquery_table.key=outer_table.col is not recongized as binding
|
|
#
|
|
create table t1(a int) engine=innodb;
|
|
insert into t1 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
|
|
create table t2(
|
|
id int primary key,
|
|
key1 int,
|
|
col1 int,
|
|
key(key1)
|
|
) engine=innodb;
|
|
insert into t2
|
|
select
|
|
A.a + B.a*10 + C.a*100 + D.a* 1000,
|
|
A.a + 10*B.a,
|
|
123456
|
|
from t1 A, t1 B, t1 C, t1 D;
|
|
# Table tsubq:
|
|
# - must use 'ref' (not 'index'), and must not use 'Using filesort'
|
|
# - shows a bad estimate for 'rows' (but I'm not sure if one can do better w/o histograms)
|
|
explain select
|
|
(SELECT
|
|
concat(id, '-', key1, '-', col1)
|
|
FROM t2
|
|
WHERE t2.key1 = t1.a
|
|
ORDER BY t2.id ASC LIMIT 1)
|
|
from
|
|
t1;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 ALL NULL NULL NULL NULL 10
|
|
2 DEPENDENT SUBQUERY t2 ref key1 key1 5 test.t1.a 1 Using where
|
|
#
|
|
# MDEV-6081: ORDER BY+ref(const): selectivity is very incorrect (MySQL Bug#14338686)
|
|
#
|
|
alter table t2 add key2 int;
|
|
update t2 set key2=key1;
|
|
alter table t2 add key(key2);
|
|
analyze table t2;
|
|
Table Op Msg_type Msg_text
|
|
test.t2 analyze status OK
|
|
flush tables;
|
|
# Table tsubq must use 'ref' + Using filesort (not 'index' w/o filesort)
|
|
explain select
|
|
(SELECT
|
|
concat(id, '-', key1, '-', col1)
|
|
FROM t2
|
|
WHERE t2.key1 = t1.a
|
|
ORDER BY t2.key2 ASC LIMIT 1)
|
|
from
|
|
t1;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 ALL NULL NULL NULL NULL #
|
|
2 DEPENDENT SUBQUERY t2 ref key1 key1 5 test.t1.a # Using where; Using filesort
|
|
drop table t1,t2;
|
|
#
|
|
# mdev-12931: semi-join in ON expression of STRAIGHT_JOIN
|
|
# joining a base table and a mergeable derived table
|
|
#
|
|
CREATE TABLE t1 (f1 int) ENGINE=InnoDB;
|
|
INSERT INTO t1 VALUES (3),(2);
|
|
CREATE TABLE t2 (f2 int) ENGINE=InnoDB;
|
|
INSERT INTO t2 VALUES (1),(4);
|
|
CREATE TABLE t3 (f3 int) ENGINE=InnoDB;
|
|
INSERT INTO t3 VALUES (5),(6);
|
|
CREATE TABLE t4 (f4 int) ENGINE=InnoDB;
|
|
INSERT INTO t4 VALUES (1),(8);
|
|
SELECT *
|
|
FROM t1
|
|
INNER JOIN
|
|
( t2 STRAIGHT_JOIN ( SELECT * FROM t3 ) AS sq
|
|
ON ( 1 IN ( SELECT f4 FROM t4 ) ) )
|
|
ON ( f1 >= f2 );
|
|
f1 f2 f3
|
|
3 1 5
|
|
2 1 5
|
|
3 1 6
|
|
2 1 6
|
|
EXPLAIN EXTENDED
|
|
SELECT *
|
|
FROM t1
|
|
INNER JOIN
|
|
( t2 STRAIGHT_JOIN ( SELECT * FROM t3 ) AS sq
|
|
ON ( 1 IN ( SELECT f4 FROM t4 ) ) )
|
|
ON ( f1 >= f2 );
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|
1 PRIMARY <subquery3> eq_ref distinct_key distinct_key 4 func 1 100.00
|
|
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00 Using join buffer (flat, BNL join)
|
|
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer (incremental, BNL join)
|
|
1 PRIMARY t3 ALL NULL NULL NULL NULL 2 100.00 Using join buffer (incremental, BNL join)
|
|
3 MATERIALIZED t4 ALL NULL NULL NULL NULL 2 100.00 Using where
|
|
Warnings:
|
|
Note 1003 select `test`.`t1`.`f1` AS `f1`,`test`.`t2`.`f2` AS `f2`,`test`.`t3`.`f3` AS `f3` from `test`.`t1` join `test`.`t2` semi join (`test`.`t4`) join `test`.`t3` where `test`.`t4`.`f4` = 1 and `test`.`t1`.`f1` >= `test`.`t2`.`f2`
|
|
DROP TABLE t1,t2,t3,t4;
|