mirror of
https://github.com/MariaDB/server.git
synced 2025-01-16 12:02:42 +01:00
3369 lines
130 KiB
Text
3369 lines
130 KiB
Text
drop table if exists t0,t1,t2,t3,t4,t5,t6;
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drop view if exists v1, v2;
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set @subselect4_tmp= @@optimizer_switch;
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set optimizer_switch='semijoin=on,firstmatch=on,loosescan=on';
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set optimizer_switch='semijoin_with_cache=on';
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set optimizer_switch='mrr=on,mrr_sort_keys=on,index_condition_pushdown=on';
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#
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# Bug #46791: Assertion failed:(table->key_read==0),function unknown
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# function,file sql_base.cc
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#
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CREATE TABLE t1 (a INT, b INT, KEY(a));
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INSERT INTO t1 VALUES (1,1),(2,2);
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CREATE TABLE t2 LIKE t1;
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INSERT INTO t2 VALUES (1,1),(2,2);
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CREATE TABLE t3 LIKE t1;
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# should have 1 impossible where and 2 dependent subqueries
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EXPLAIN
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SELECT 1 FROM t1
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WHERE NOT EXISTS (SELECT 1 FROM t2 WHERE 1 = (SELECT MIN(t2.b) FROM t3))
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ORDER BY count(*);
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY t1 index NULL a 5 NULL 2 Using index
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2 SUBQUERY t2 ALL NULL NULL NULL NULL 2 Using where
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3 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL no matching row in const table
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# should not crash the next statement
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SELECT 1 FROM t1
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WHERE NOT EXISTS (SELECT 1 FROM t2 WHERE 1 = (SELECT MIN(t2.b) FROM t3))
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ORDER BY count(*);
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1
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1
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# should not crash: the crash is caused by the previous statement
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SELECT 1;
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1
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1
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DROP TABLE t1,t2,t3;
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#
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# Bug #47106: Crash / segfault on adding EXPLAIN to a non-crashing
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# query
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#
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CREATE TABLE t1 (
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a INT,
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b INT,
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PRIMARY KEY (a),
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KEY b (b)
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);
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INSERT INTO t1 VALUES (1, 1), (2, 1);
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CREATE TABLE t2 LIKE t1;
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INSERT INTO t2 SELECT * FROM t1;
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CREATE TABLE t3 LIKE t1;
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INSERT INTO t3 SELECT * FROM t1;
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# Should not crash.
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# Should have 1 impossible where and 2 dependent subqs.
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EXPLAIN
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SELECT
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(SELECT 1 FROM t1,t2 WHERE t2.b > t3.b)
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FROM t3 WHERE 1 = 0 GROUP BY 1;
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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
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2 DEPENDENT SUBQUERY t1 index NULL PRIMARY 4 NULL 2 Using index
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2 DEPENDENT SUBQUERY t2 ALL b NULL NULL NULL 2 Range checked for each record (index map: 0x2)
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# should return 0 rows
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SELECT
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(SELECT 1 FROM t1,t2 WHERE t2.b > t3.b)
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FROM t3 WHERE 1 = 0 GROUP BY 1;
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(SELECT 1 FROM t1,t2 WHERE t2.b > t3.b)
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DROP TABLE t1,t2,t3;
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End of 5.0 tests.
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CREATE TABLE t1 (col_int_nokey int(11) NOT NULL, col_varchar_nokey varchar(1) NOT NULL) engine=myisam;
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INSERT INTO t1 VALUES (2,'s'),(0,'v'),(2,'s');
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CREATE TABLE t2 (
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pk int(11) NOT NULL AUTO_INCREMENT,
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`col_int_key` int(11) NOT NULL,
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col_varchar_key varchar(1) NOT NULL,
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PRIMARY KEY (pk),
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KEY `col_int_key` (`col_int_key`),
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KEY `col_varchar_key` (`col_varchar_key`)
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) ENGINE=MyISAM;
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INSERT INTO t2 VALUES (4,10,'g'), (5,20,'v');
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SELECT t1.col_int_nokey,(SELECT MIN( t2_a.col_int_key ) FROM t2 t2_a, t2 t2_b, t1 t1_a WHERE t1_a.col_varchar_nokey = t2_b.col_varchar_key and t1.col_int_nokey ) as sub FROM t1;
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col_int_nokey sub
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2 10
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0 NULL
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2 10
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SELECT t1.col_int_nokey,(SELECT MIN( t2_a.col_int_key ) +1 FROM t2 t2_a, t2 t2_b, t1 t1_a WHERE t1_a.col_varchar_nokey = t2_b.col_varchar_key and t1.col_int_nokey ) as sub FROM t1;
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col_int_nokey sub
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2 11
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0 NULL
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2 11
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DROP TABLE t1,t2;
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#
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# Bug#54568: create view cause Assertion failed: 0,
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# file .\item_subselect.cc, line 836
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#
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EXPLAIN SELECT 1 LIKE ( 1 IN ( SELECT 1 ) );
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
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Warnings:
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Note 1249 Select 2 was reduced during optimization
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DESCRIBE SELECT 1 LIKE ( 1 IN ( SELECT 1 ) );
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
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Warnings:
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Note 1249 Select 2 was reduced during optimization
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# None of the below should crash
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CREATE VIEW v1 AS SELECT 1 LIKE ( 1 IN ( SELECT 1 ) );
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CREATE VIEW v2 AS SELECT 1 LIKE '%' ESCAPE ( 1 IN ( SELECT 1 ) );
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DROP VIEW v1, v2;
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#
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# Bug#51070: Query with a NOT IN subquery predicate returns a wrong
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# result set
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#
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CREATE TABLE t1 ( a INT, b INT );
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INSERT INTO t1 VALUES ( 1, NULL ), ( 2, NULL );
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CREATE TABLE t2 ( c INT, d INT );
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INSERT INTO t2 VALUES ( NULL, 3 ), ( NULL, 4 );
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CREATE TABLE t3 ( e INT, f INT );
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INSERT INTO t3 VALUES ( NULL, NULL ), ( NULL, NULL );
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CREATE TABLE t4 ( a INT );
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INSERT INTO t4 VALUES (1), (2), (3);
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CREATE TABLE t5 ( a INT );
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INSERT INTO t5 VALUES (NULL), (2);
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SET @old_optimizer_switch = @@session.optimizer_switch;
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SET SESSION optimizer_switch = 'materialization=off,in_to_exists=on,semijoin=off';
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EXPLAIN
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SELECT * FROM t1 WHERE ( a, b ) NOT IN ( SELECT c, d FROM t2 );
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id select_type table type possible_keys key key_len ref rows Extra
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x PRIMARY x x x x x x x x
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x DEPENDENT SUBQUERY x x x x x x x x
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SELECT * FROM t1 WHERE ( a, b ) NOT IN ( SELECT c, d FROM t2 );
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a b
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EXPLAIN
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SELECT * FROM t1 WHERE ( a, b ) NOT IN ( SELECT c, d FROM t2 ) IS NULL;
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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 2 Using where
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2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 2 Using where
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SELECT * FROM t1 WHERE ( a, b ) NOT IN ( SELECT c, d FROM t2 ) IS NULL;
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a b
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1 NULL
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2 NULL
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SELECT * FROM t1 WHERE ( a, b ) IN ( SELECT c, d FROM t2 ) IS NULL;
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a b
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1 NULL
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2 NULL
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SELECT * FROM t1 WHERE ( a, b ) NOT IN ( SELECT c, d FROM t2 ) IS UNKNOWN;
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a b
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1 NULL
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2 NULL
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SELECT * FROM t1 WHERE (( a, b ) NOT IN ( SELECT c, d FROM t2 )) IS UNKNOWN;
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a b
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1 NULL
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2 NULL
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SELECT * FROM t1 WHERE 1 = 1 AND ( a, b ) NOT IN ( SELECT c, d FROM t2 );
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a b
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EXPLAIN
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SELECT * FROM t1 WHERE ( a, b ) NOT IN ( SELECT e, f FROM t3 );
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id select_type table type possible_keys key key_len ref rows Extra
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x PRIMARY x x x x x x x x
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x DEPENDENT SUBQUERY x x x x x x x x
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SELECT * FROM t1 WHERE ( a, b ) NOT IN ( SELECT e, f FROM t3 );
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a b
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EXPLAIN
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SELECT * FROM t2 WHERE ( c, d ) NOT IN ( SELECT a, b FROM t1 );
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id select_type table type possible_keys key key_len ref rows Extra
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x PRIMARY x x x x x x x x
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x DEPENDENT SUBQUERY x x x x x x x x
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SELECT * FROM t2 WHERE ( c, d ) NOT IN ( SELECT a, b FROM t1 );
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c d
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EXPLAIN
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SELECT * FROM t3 WHERE ( e, f ) NOT IN ( SELECT c, d FROM t2 );
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id select_type table type possible_keys key key_len ref rows Extra
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x PRIMARY x x x x x x x x
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x DEPENDENT SUBQUERY x x x x x x x x
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SELECT * FROM t3 WHERE ( e, f ) NOT IN ( SELECT c, d FROM t2 );
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e f
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EXPLAIN
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SELECT * FROM t2 WHERE ( c, d ) NOT IN ( SELECT e, f FROM t3 );
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id select_type table type possible_keys key key_len ref rows Extra
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x PRIMARY x x x x x x x x
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x DEPENDENT SUBQUERY x x x x x x x x
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SELECT * FROM t2 WHERE ( c, d ) NOT IN ( SELECT e, f FROM t3 );
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c d
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SELECT * FROM t1 WHERE ( a, b ) NOT IN
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( SELECT c, d FROM t2 WHERE c = 1 AND c <> 1 );
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a b
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1 NULL
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2 NULL
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SELECT * FROM t1 WHERE b NOT IN ( SELECT c FROM t2 WHERE c = 1 );
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a b
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1 NULL
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2 NULL
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SELECT * FROM t1 WHERE NULL NOT IN ( SELECT c FROM t2 WHERE c = 1 AND c <> 1 );
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a b
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1 NULL
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2 NULL
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SET SESSION optimizer_switch = @old_optimizer_switch;
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DROP TABLE t1, t2, t3, t4, t5;
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#
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# Bug#58207: invalid memory reads when using default column value and
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# tmptable needed
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#
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CREATE TABLE t(a VARCHAR(245) DEFAULT
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'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa');
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INSERT INTO t VALUES (''),(''),(''),(''),(''),(''),(''),(''),(''),(''),('');
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SELECT * FROM (SELECT default(a) FROM t GROUP BY a) d;
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default(a)
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aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
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DROP TABLE t;
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#
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# LP BUG#1009187, MDEV-373, MYSQL bug#58628
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# Wrong result for a query with [NOT] IN subquery predicate if
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# the left part of the predicate is explicit NULL
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#
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CREATE TABLE t1 (pk INT NOT NULL, i INT NOT NULL);
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INSERT INTO t1 VALUES (0,10), (1,20), (2,30), (3,40);
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CREATE TABLE t2a (pk INT NOT NULL, i INT NOT NULL, PRIMARY KEY(i,pk));
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INSERT INTO t2a VALUES (0,0), (1,1), (2,2), (3,3);
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CREATE TABLE t2b (pk INT, i INT);
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INSERT INTO t2b VALUES (0,0), (1,1), (2,2), (3,3);
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CREATE TABLE t2c (pk INT NOT NULL, i INT NOT NULL);
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INSERT INTO t2c VALUES (0,0), (1,1), (2,2), (3,3);
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create index it2c on t2c (i,pk);
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CREATE TABLE t2d (pk INT NOT NULL, i INT NOT NULL, PRIMARY KEY(i));
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INSERT INTO t2d VALUES (0,0), (1,1), (2,2), (3,3);
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EXPLAIN
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SELECT * FROM t1 WHERE NULL NOT IN (SELECT t2a.i FROM t2a WHERE t2a.pk = t1.pk);
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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 4 Using where
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2 DEPENDENT SUBQUERY t2a unique_subquery PRIMARY PRIMARY 8 const,test.t1.pk 1 Using index; Using where; Full scan on NULL key
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SELECT * FROM t1 WHERE NULL NOT IN (SELECT t2a.i FROM t2a WHERE t2a.pk = t1.pk);
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pk i
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SELECT * FROM t1 WHERE 1+NULL NOT IN (SELECT t2a.i FROM t2a WHERE t2a.pk = t1.pk);
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pk i
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SELECT * FROM t1 WHERE NULL IN (SELECT t2a.i FROM t2a WHERE t2a.pk = t1.pk) IS UNKNOWN;
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pk i
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0 10
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1 20
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2 30
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3 40
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SELECT t1.pk, NULL NOT IN (SELECT t2a.i FROM t2a WHERE t2a.pk = t1.pk) FROM t1;
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pk NULL NOT IN (SELECT t2a.i FROM t2a WHERE t2a.pk = t1.pk)
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0 NULL
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1 NULL
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2 NULL
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3 NULL
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EXPLAIN
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SELECT * FROM t1 WHERE NULL NOT IN (SELECT t2b.i FROM t2b WHERE t2b.pk = t1.pk);
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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 4 Using where
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2 DEPENDENT SUBQUERY t2b ALL NULL NULL NULL NULL 4 Using where
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SELECT * FROM t1 WHERE NULL NOT IN (SELECT t2b.i FROM t2b WHERE t2b.pk = t1.pk);
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pk i
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SELECT * FROM t1 WHERE NULL IN (SELECT t2b.i FROM t2b WHERE t2b.pk = t1.pk) IS UNKNOWN;
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pk i
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0 10
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1 20
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2 30
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3 40
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SELECT t1.pk, NULL NOT IN (SELECT t2b.i FROM t2b WHERE t2b.pk = t1.pk) FROM t1;
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pk NULL NOT IN (SELECT t2b.i FROM t2b WHERE t2b.pk = t1.pk)
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0 NULL
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1 NULL
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2 NULL
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3 NULL
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EXPLAIN
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SELECT * FROM t1 WHERE NULL NOT IN (SELECT t2c.i FROM t2c WHERE t2c.pk = t1.pk);
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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 4 Using where
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2 DEPENDENT SUBQUERY t2c index_subquery it2c it2c 8 const,test.t1.pk 1 Using index; Using where; Full scan on NULL key
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SELECT * FROM t1 WHERE NULL NOT IN (SELECT t2c.i FROM t2c WHERE t2c.pk = t1.pk);
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pk i
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SELECT * FROM t1 WHERE NULL IN (SELECT t2c.i FROM t2c WHERE t2c.pk = t1.pk) IS UNKNOWN;
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pk i
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0 10
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1 20
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2 30
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3 40
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SELECT t1.pk, NULL NOT IN (SELECT t2c.i FROM t2c WHERE t2c.pk = t1.pk) FROM t1;
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pk NULL NOT IN (SELECT t2c.i FROM t2c WHERE t2c.pk = t1.pk)
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0 NULL
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1 NULL
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2 NULL
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3 NULL
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EXPLAIN
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SELECT * FROM t1 WHERE NULL NOT IN (SELECT t2d.i FROM t2d WHERE t2d.pk = t1.pk);
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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 4 Using where
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2 DEPENDENT SUBQUERY t2d const PRIMARY PRIMARY 4 const 1 Using where; Full scan on NULL key
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SELECT * FROM t1 WHERE NULL NOT IN (SELECT t2d.i FROM t2d WHERE t2d.pk = t1.pk);
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pk i
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SELECT * FROM t1 WHERE NULL IN (SELECT t2d.i FROM t2d WHERE t2d.pk = t1.pk) IS UNKNOWN;
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pk i
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0 10
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1 20
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2 30
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3 40
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SELECT t1.pk, NULL NOT IN (SELECT t2d.i FROM t2d WHERE t2d.pk = t1.pk) FROM t1;
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pk NULL NOT IN (SELECT t2d.i FROM t2d WHERE t2d.pk = t1.pk)
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0 NULL
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1 NULL
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2 NULL
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3 NULL
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EXPLAIN
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SELECT * FROM t1 WHERE (NULL, 1) NOT IN (SELECT t2a.i, t2a.pk FROM t2a WHERE t2a.pk = t1.pk);
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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 4 Using where
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2 DEPENDENT SUBQUERY t2a unique_subquery PRIMARY PRIMARY 8 const,test.t1.pk 1 Using index; Using where; Full scan on NULL key
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SELECT * FROM t1 WHERE (NULL, 1) NOT IN (SELECT t2a.i, t2a.pk FROM t2a WHERE t2a.pk = t1.pk);
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pk i
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0 10
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2 30
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3 40
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SELECT (NULL, 1) NOT IN (SELECT t2a.i, t2a.pk FROM t2a WHERE t2a.pk = t1.pk) as exp from t1;
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exp
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1
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NULL
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1
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|
1
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EXPLAIN
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SELECT * FROM t1 WHERE (NULL, 1) NOT IN (SELECT t2b.i, t2b.pk FROM t2b WHERE t2b.pk = t1.pk);
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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 4 Using where
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2 DEPENDENT SUBQUERY t2b ALL NULL NULL NULL NULL 4 Using where
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SELECT * FROM t1 WHERE (NULL, 1) NOT IN (SELECT t2b.i, t2b.pk FROM t2b WHERE t2b.pk = t1.pk);
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pk i
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0 10
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2 30
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3 40
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SELECT (NULL, 1) NOT IN (SELECT t2b.i, t2b.pk FROM t2b WHERE t2b.pk = t1.pk) as exp from t1;
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exp
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1
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NULL
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1
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|
1
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EXPLAIN
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SELECT * FROM t1 WHERE (NULL, 1) NOT IN (SELECT t2c.i, t2c.pk FROM t2c WHERE t2c.pk = t1.pk);
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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 4 Using where
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2 DEPENDENT SUBQUERY t2c index_subquery it2c it2c 8 const,test.t1.pk 1 Using index; Using where; Full scan on NULL key
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SELECT * FROM t1 WHERE (NULL, 1) NOT IN (SELECT t2c.i, t2c.pk FROM t2c WHERE t2c.pk = t1.pk);
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pk i
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0 10
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2 30
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3 40
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SELECT (NULL, 1) NOT IN (SELECT t2c.i, t2c.pk FROM t2c WHERE t2c.pk = t1.pk) as exp from t1;
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exp
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1
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NULL
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|
1
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|
1
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|
EXPLAIN
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SELECT * FROM t1 WHERE (NULL, 1) NOT IN (SELECT t2d.i, t2d.pk FROM t2d WHERE t2d.pk = t1.pk);
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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 4 Using where
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2 DEPENDENT SUBQUERY t2d const PRIMARY PRIMARY 4 const 1 Using where; Full scan on NULL key
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SELECT * FROM t1 WHERE (NULL, 1) NOT IN (SELECT t2d.i, t2d.pk FROM t2d WHERE t2d.pk = t1.pk);
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pk i
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0 10
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2 30
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3 40
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SELECT (NULL, 1) NOT IN (SELECT t2d.i, t2d.pk FROM t2d WHERE t2d.pk = t1.pk) as exp from t1;
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exp
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1
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NULL
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|
1
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|
1
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drop table t1, t2a, t2b, t2c, t2d;
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#
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# End of 5.1 tests.
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#
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#
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|
# BUG#46743 "Azalea processing correlated, aggregate SELECT
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# subqueries incorrectly"
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#
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CREATE TABLE t1 (c int);
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INSERT INTO t1 VALUES (NULL);
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CREATE TABLE t2 (d int , KEY (d));
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INSERT INTO t2 VALUES (NULL),(NULL);
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0 rows in subquery
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SELECT 1 AS RESULT FROM t2,t1 WHERE d = c;
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RESULT
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base query
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SELECT (SELECT 1 FROM t2 WHERE d = c) AS RESULT FROM t1 ;
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RESULT
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NULL
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EXPLAIN EXTENDED SELECT (SELECT 1 FROM t2 WHERE d = c) AS RESULT FROM t1 ;
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 PRIMARY t1 system NULL NULL NULL NULL 1 100.00
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2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
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Warnings:
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Note 1276 Field or reference 'test.t1.c' of SELECT #2 was resolved in SELECT #1
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Note 1003 /* select#1 */ select (/* select#2 */ select 1 from `test`.`t2` where 0) AS `RESULT` from dual
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first equivalent variant
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SELECT (SELECT 1 FROM t2 WHERE d = IFNULL(c,NULL)) AS RESULT FROM t1 GROUP BY c ;
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RESULT
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NULL
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|
EXPLAIN EXTENDED SELECT (SELECT 1 FROM t2 WHERE d = IFNULL(c,NULL)) AS RESULT FROM t1 GROUP BY c;
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|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|
1 PRIMARY t1 system NULL NULL NULL NULL 1 100.00
|
|
2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
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|
Warnings:
|
|
Note 1276 Field or reference 'test.t1.c' of SELECT #2 was resolved in SELECT #1
|
|
Note 1003 /* select#1 */ select (/* select#2 */ select 1 from `test`.`t2` where 0) AS `RESULT` from dual group by NULL
|
|
second equivalent variant
|
|
SELECT (SELECT 1 FROM t2 WHERE d = c) AS RESULT FROM t1 GROUP BY c ;
|
|
RESULT
|
|
NULL
|
|
EXPLAIN EXTENDED SELECT (SELECT 1 FROM t2 WHERE d = c) AS RESULT FROM t1 GROUP BY c ;
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|
1 PRIMARY t1 system NULL NULL NULL NULL 1 100.00
|
|
2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
|
|
Warnings:
|
|
Note 1276 Field or reference 'test.t1.c' of SELECT #2 was resolved in SELECT #1
|
|
Note 1003 /* select#1 */ select (/* select#2 */ select 1 from `test`.`t2` where 0) AS `RESULT` from dual group by NULL
|
|
DROP TABLE t1,t2;
|
|
#
|
|
# During work with BUG#45863 I had problems with a query that was
|
|
# optimized differently in regular and prepared mode.
|
|
# Because there was a bug in one of the selected strategies, I became
|
|
# aware of the problem. Adding an EXPLAIN query to catch this.
|
|
DROP TABLE IF EXISTS t1, t2, t3;
|
|
CREATE TABLE t1
|
|
(EMPNUM CHAR(3) NOT NULL,
|
|
EMPNAME CHAR(20),
|
|
GRADE DECIMAL(4),
|
|
CITY CHAR(15)) CHARSET=latin1;
|
|
CREATE TABLE t2
|
|
(PNUM CHAR(3) NOT NULL,
|
|
PNAME CHAR(20),
|
|
PTYPE CHAR(6),
|
|
BUDGET DECIMAL(9),
|
|
CITY CHAR(15)) CHARSET=latin1;
|
|
CREATE TABLE t3
|
|
(EMPNUM CHAR(3) NOT NULL,
|
|
PNUM CHAR(3) NOT NULL,
|
|
HOURS DECIMAL(5)) CHARSET=latin1;
|
|
INSERT INTO t1 VALUES ('E1','Alice',12,'Deale');
|
|
INSERT INTO t1 VALUES ('E2','Betty',10,'Vienna');
|
|
INSERT INTO t1 VALUES ('E3','Carmen',13,'Vienna');
|
|
INSERT INTO t1 VALUES ('E4','Don',12,'Deale');
|
|
INSERT INTO t1 VALUES ('E5','Ed',13,'Akron');
|
|
INSERT INTO t2 VALUES ('P1','MXSS','Design',10000,'Deale');
|
|
INSERT INTO t2 VALUES ('P2','CALM','Code',30000,'Vienna');
|
|
INSERT INTO t2 VALUES ('P3','SDP','Test',30000,'Tampa');
|
|
INSERT INTO t2 VALUES ('P4','SDP','Design',20000,'Deale');
|
|
INSERT INTO t2 VALUES ('P5','IRM','Test',10000,'Vienna');
|
|
INSERT INTO t2 VALUES ('P6','PAYR','Design',50000,'Deale');
|
|
INSERT INTO t3 VALUES ('E1','P1',40);
|
|
INSERT INTO t3 VALUES ('E1','P2',20);
|
|
INSERT INTO t3 VALUES ('E1','P3',80);
|
|
INSERT INTO t3 VALUES ('E1','P4',20);
|
|
INSERT INTO t3 VALUES ('E1','P5',12);
|
|
INSERT INTO t3 VALUES ('E1','P6',12);
|
|
INSERT INTO t3 VALUES ('E2','P1',40);
|
|
INSERT INTO t3 VALUES ('E2','P2',80);
|
|
INSERT INTO t3 VALUES ('E3','P2',20);
|
|
INSERT INTO t3 VALUES ('E4','P2',20);
|
|
INSERT INTO t3 VALUES ('E4','P4',40);
|
|
INSERT INTO t3 VALUES ('E4','P5',80);
|
|
SET @old_optimizer_switch = @@session.optimizer_switch;
|
|
SET @old_join_cache_level = @@session.join_cache_level;
|
|
SET SESSION optimizer_switch = 'firstmatch=on,loosescan=on,materialization=on,in_to_exists=off,semijoin=on';
|
|
SET SESSION join_cache_level = 1;
|
|
CREATE UNIQUE INDEX t1_IDX ON t1(EMPNUM);
|
|
EXPLAIN SELECT EMPNAME
|
|
FROM t1
|
|
WHERE EMPNUM IN
|
|
(SELECT EMPNUM
|
|
FROM t3
|
|
WHERE PNUM IN
|
|
(SELECT PNUM
|
|
FROM t2
|
|
WHERE PTYPE = 'Design'));
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 ALL t1_IDX NULL NULL NULL 5
|
|
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 3 func 1
|
|
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 6 Using where
|
|
2 MATERIALIZED t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join)
|
|
PREPARE stmt FROM "EXPLAIN SELECT EMPNAME
|
|
FROM t1
|
|
WHERE EMPNUM IN
|
|
(SELECT EMPNUM
|
|
FROM t3
|
|
WHERE PNUM IN
|
|
(SELECT PNUM
|
|
FROM t2
|
|
WHERE PTYPE = 'Design'))";
|
|
EXECUTE stmt;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 ALL t1_IDX NULL NULL NULL 5
|
|
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 3 func 1
|
|
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 6 Using where
|
|
2 MATERIALIZED t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join)
|
|
EXECUTE stmt;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 ALL t1_IDX NULL NULL NULL 5
|
|
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 3 func 1
|
|
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 6 Using where
|
|
2 MATERIALIZED t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join)
|
|
DEALLOCATE PREPARE stmt;
|
|
DROP INDEX t1_IDX ON t1;
|
|
CREATE INDEX t1_IDX ON t1(EMPNUM);
|
|
EXPLAIN SELECT EMPNAME
|
|
FROM t1
|
|
WHERE EMPNUM IN
|
|
(SELECT EMPNUM
|
|
FROM t3
|
|
WHERE PNUM IN
|
|
(SELECT PNUM
|
|
FROM t2
|
|
WHERE PTYPE = 'Design'));
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 ALL t1_IDX NULL NULL NULL 5
|
|
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 3 func 1
|
|
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 6 Using where
|
|
2 MATERIALIZED t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join)
|
|
PREPARE stmt FROM "EXPLAIN SELECT EMPNAME
|
|
FROM t1
|
|
WHERE EMPNUM IN
|
|
(SELECT EMPNUM
|
|
FROM t3
|
|
WHERE PNUM IN
|
|
(SELECT PNUM
|
|
FROM t2
|
|
WHERE PTYPE = 'Design'))";
|
|
EXECUTE stmt;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 ALL t1_IDX NULL NULL NULL 5
|
|
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 3 func 1
|
|
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 6 Using where
|
|
2 MATERIALIZED t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join)
|
|
EXECUTE stmt;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 ALL t1_IDX NULL NULL NULL 5
|
|
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 3 func 1
|
|
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 6 Using where
|
|
2 MATERIALIZED t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join)
|
|
DEALLOCATE PREPARE stmt;
|
|
DROP INDEX t1_IDX ON t1;
|
|
EXPLAIN SELECT EMPNAME
|
|
FROM t1
|
|
WHERE EMPNUM IN
|
|
(SELECT EMPNUM
|
|
FROM t3
|
|
WHERE PNUM IN
|
|
(SELECT PNUM
|
|
FROM t2
|
|
WHERE PTYPE = 'Design'));
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 ALL NULL NULL NULL NULL 5
|
|
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 3 func 1
|
|
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 6 Using where
|
|
2 MATERIALIZED t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join)
|
|
PREPARE stmt FROM "EXPLAIN SELECT EMPNAME
|
|
FROM t1
|
|
WHERE EMPNUM IN
|
|
(SELECT EMPNUM
|
|
FROM t3
|
|
WHERE PNUM IN
|
|
(SELECT PNUM
|
|
FROM t2
|
|
WHERE PTYPE = 'Design'))";
|
|
EXECUTE stmt;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 ALL NULL NULL NULL NULL 5
|
|
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 3 func 1
|
|
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 6 Using where
|
|
2 MATERIALIZED t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join)
|
|
EXECUTE stmt;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 ALL NULL NULL NULL NULL 5
|
|
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 3 func 1
|
|
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 6 Using where
|
|
2 MATERIALIZED t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join)
|
|
DEALLOCATE PREPARE stmt;
|
|
SET SESSION optimizer_switch = @old_optimizer_switch;
|
|
SET SESSION join_cache_level = @old_join_cache_level;
|
|
DROP TABLE t1, t2, t3;
|
|
#
|
|
# BUG#45221 Query SELECT pk FROM C WHERE pk IN (SELECT int_key) failing
|
|
#
|
|
CREATE TABLE t1 (
|
|
i1_key INT,
|
|
i2 INT,
|
|
i3 INT,
|
|
KEY i1_index (i1_key)
|
|
);
|
|
INSERT INTO t1 VALUES (9,1,2), (9,2,1);
|
|
CREATE TABLE t2 (
|
|
pk INT NOT NULL,
|
|
i1 INT,
|
|
PRIMARY KEY (pk)
|
|
);
|
|
INSERT INTO t2 VALUES (9,1);
|
|
# Enable Index condition pushdown
|
|
set @old_icp=@@optimizer_switch;
|
|
SET SESSION optimizer_switch="index_condition_pushdown=on";
|
|
|
|
SELECT pk
|
|
FROM t2
|
|
WHERE
|
|
pk IN (
|
|
SELECT i1_key
|
|
FROM t1
|
|
WHERE t1.i2 < t1.i3 XOR t2.i1 > 1
|
|
ORDER BY t1.i2 desc);
|
|
pk
|
|
9
|
|
# Restore old value for Index condition pushdown
|
|
SET SESSION optimizer_switch=@old_icp;
|
|
DROP TABLE t1,t2;
|
|
#
|
|
# End of 5.3 tests.
|
|
#
|
|
#
|
|
# Bug#53236 Segfault in DTCollation::set(DTCollation&)
|
|
#
|
|
CREATE TABLE t1 (
|
|
pk INTEGER AUTO_INCREMENT,
|
|
col_varchar VARCHAR(1),
|
|
PRIMARY KEY (pk)
|
|
)
|
|
;
|
|
INSERT INTO t1 (col_varchar)
|
|
VALUES
|
|
('w'),
|
|
('m')
|
|
;
|
|
SELECT table1.pk
|
|
FROM ( t1 AS table1 JOIN t1 AS table2 ON (table1.col_varchar =
|
|
table2.col_varchar) )
|
|
WHERE ( 1, 2 ) IN ( SELECT SUBQUERY1_t1.pk AS SUBQUERY1_field1,
|
|
SUBQUERY1_t1.pk AS SUBQUERY1_field2
|
|
FROM ( t1 AS SUBQUERY1_t1 JOIN t1 AS SUBQUERY1_t2
|
|
ON (SUBQUERY1_t2.col_varchar =
|
|
SUBQUERY1_t1.col_varchar) ) )
|
|
;
|
|
pk
|
|
drop table t1;
|
|
#
|
|
# BUG#716293: "Range checked for each record" is not used if condition refers to outside of subquery
|
|
#
|
|
create table t1 (a int);
|
|
insert into t1 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
|
|
create table t2 (a int, b int, `filler` char(200), key(a), key (b));
|
|
insert into t2
|
|
select A.a + 10*B.a + 100 * C.a, A.a + 10*B.a + 100 * C.a, 'filler' from t1 A, t1 B, t1 C;
|
|
# The following must use "Range checked for each record" for table B
|
|
explain
|
|
select a,
|
|
(select sum(X.a+B.b) from t1 X, t2 B where B.a=A.a or B.b=A.a)
|
|
from t1 A;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY A ALL NULL NULL NULL NULL 10
|
|
2 DEPENDENT SUBQUERY X ALL NULL NULL NULL NULL 10
|
|
2 DEPENDENT SUBQUERY B ALL a,b NULL NULL NULL 1000 Range checked for each record (index map: 0x3)
|
|
drop table t1, t2;
|
|
#
|
|
# BUG#723822: Crash in get_constant_key_infix with EXISTS ( SELECT .. DISTINCT )
|
|
#
|
|
CREATE TABLE t1 ( f1 int(11), f3 varchar(1)) ;
|
|
INSERT INTO t1 VALUES ('8','c'),('5','f');
|
|
ALTER TABLE t1 ADD KEY (f3,f1);
|
|
CREATE TABLE t2 ( f4 varchar(1)) ;
|
|
INSERT INTO t2 VALUES ('f'),('d');
|
|
SELECT * FROM t2
|
|
WHERE EXISTS (
|
|
SELECT DISTINCT f3
|
|
FROM t1
|
|
WHERE f3 <= t2.f4
|
|
);
|
|
f4
|
|
f
|
|
d
|
|
drop table t1,t2;
|
|
#
|
|
# LP BUG#718763 Second crash in select_describe() and materialization
|
|
#
|
|
CREATE TABLE t1 ( f1 int(11), f3 int(11), f10 varchar(1), KEY (f3)) ;
|
|
INSERT INTO t1 VALUES ('28','6','m'),('29','4','c');
|
|
CREATE TABLE t2 (f11 varchar(1)) ;
|
|
INSERT INTO t2 VALUES ('f'),('d');
|
|
SET @old_optimizer_switch = @@session.optimizer_switch;
|
|
SET SESSION optimizer_switch = 'materialization=on,in_to_exists=off';
|
|
EXPLAIN
|
|
SELECT * FROM t1
|
|
WHERE f3 = (
|
|
SELECT t1.f3 FROM t1
|
|
WHERE ( t1.f10 ) IN ( SELECT f11 FROM t2 GROUP BY f11 ));
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
|
|
2 SUBQUERY t1 ALL NULL NULL NULL NULL 2
|
|
2 SUBQUERY t2 ALL NULL NULL NULL NULL 2 Using where; FirstMatch(t1); Using join buffer (flat, BNL join)
|
|
SELECT * FROM t1
|
|
WHERE f3 = (
|
|
SELECT t1.f3 FROM t1
|
|
WHERE ( t1.f10 ) IN ( SELECT f11 FROM t2 GROUP BY f11 ));
|
|
f1 f3 f10
|
|
EXPLAIN
|
|
SELECT * FROM t1
|
|
WHERE f3 = (
|
|
SELECT f3 FROM t1
|
|
WHERE ( f10, f10 ) IN ( SELECT f11, f11 FROM t2 GROUP BY f11 ));
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
|
|
2 SUBQUERY t1 ALL NULL NULL NULL NULL 2
|
|
2 SUBQUERY t2 ALL NULL NULL NULL NULL 2 Using where; FirstMatch(t1); Using join buffer (flat, BNL join)
|
|
SELECT * FROM t1
|
|
WHERE f3 = (
|
|
SELECT f3 FROM t1
|
|
WHERE ( f10, f10 ) IN ( SELECT f11, f11 FROM t2 GROUP BY f11 ));
|
|
f1 f3 f10
|
|
SET @@optimizer_switch = 'materialization=on,in_to_exists=off,semijoin=off';
|
|
EXPLAIN
|
|
SELECT * FROM t1
|
|
WHERE f3 = (
|
|
SELECT t1.f3 FROM t1
|
|
WHERE ( t1.f10 ) IN ( SELECT max(f11) FROM t2 GROUP BY f11 ));
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 ref f3 f3 5 const 0 Using where
|
|
2 SUBQUERY t1 ALL NULL NULL NULL NULL 2 Using where
|
|
3 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 Using temporary
|
|
SELECT * FROM t1
|
|
WHERE f3 = (
|
|
SELECT t1.f3 FROM t1
|
|
WHERE ( t1.f10 ) IN ( SELECT max(f11) FROM t2 GROUP BY f11 ));
|
|
f1 f3 f10
|
|
EXPLAIN
|
|
SELECT * FROM t1
|
|
WHERE f3 = (
|
|
SELECT f3 FROM t1
|
|
WHERE ( f10, f10 ) IN ( SELECT max(f11), f11 FROM t2 GROUP BY f11 ));
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 ref f3 f3 5 const 0 Using where
|
|
2 SUBQUERY t1 ALL NULL NULL NULL NULL 2 Using where
|
|
3 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 Using temporary
|
|
SELECT * FROM t1
|
|
WHERE f3 = (
|
|
SELECT f3 FROM t1
|
|
WHERE ( f10, f10 ) IN ( SELECT max(f11), f11 FROM t2 GROUP BY f11 ));
|
|
f1 f3 f10
|
|
SET SESSION optimizer_switch = @old_optimizer_switch;
|
|
drop table t1,t2;
|
|
#
|
|
# LP BUG#715738: Wrong result with implicit grouping and empty result set
|
|
#
|
|
CREATE TABLE t1 (f1 int, f2 int);
|
|
CREATE TABLE t2 (f3 int, f4 int not null, PRIMARY KEY (f3));
|
|
set @save_optimizer_switch=@@optimizer_switch;
|
|
SET @@optimizer_switch = 'materialization=on,in_to_exists=off,semijoin=off';
|
|
EXPLAIN
|
|
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, min(f4) FROM t2);
|
|
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 MATERIALIZED NULL NULL NULL NULL NULL NULL NULL no matching row in const table
|
|
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, min(f4) FROM t2);
|
|
f1 f2
|
|
EXPLAIN
|
|
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3+f4, min(f4) FROM t2);
|
|
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 MATERIALIZED NULL NULL NULL NULL NULL NULL NULL no matching row in const table
|
|
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3+f4, min(f4) FROM t2);
|
|
f1 f2
|
|
EXPLAIN
|
|
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, min(f4)+max(f4) FROM t2);
|
|
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 MATERIALIZED NULL NULL NULL NULL NULL NULL NULL no matching row in const table
|
|
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, min(f4)+max(f4) FROM t2);
|
|
f1 f2
|
|
EXPLAIN
|
|
SELECT (2, 0) NOT IN (SELECT f3, min(f4) FROM t2) as not_in;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL No tables used
|
|
2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL no matching row in const table
|
|
SELECT (2, 0) NOT IN (SELECT f3, min(f4) FROM t2) as not_in;
|
|
not_in
|
|
NULL
|
|
EXPLAIN
|
|
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, count(f4) FROM t2);
|
|
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 MATERIALIZED NULL NULL NULL NULL NULL NULL NULL no matching row in const table
|
|
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, count(f4) FROM t2);
|
|
f1 f2
|
|
EXPLAIN
|
|
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, f3 + count(f4) FROM t2);
|
|
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 MATERIALIZED NULL NULL NULL NULL NULL NULL NULL no matching row in const table
|
|
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, f3 + count(f4) FROM t2);
|
|
f1 f2
|
|
EXPLAIN
|
|
SELECT (2, 0) NOT IN (SELECT f3, count(f4) FROM t2) as not_in;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL No tables used
|
|
2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL no matching row in const table
|
|
SELECT (2, 0) NOT IN (SELECT f3, count(f4) FROM t2) as not_in;
|
|
not_in
|
|
NULL
|
|
EXPLAIN
|
|
SELECT (2, 0) NOT IN (SELECT f3, count(f4) FROM t2 HAVING max(f4) > 7) as not_in;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL No tables used
|
|
2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL no matching row in const table
|
|
SELECT (2, 0) NOT IN (SELECT f3, count(f4) FROM t2 HAVING max(f4) > 7) as not_in;
|
|
not_in
|
|
1
|
|
EXPLAIN
|
|
SELECT (2, 0) NOT IN (SELECT f3, count(f4) FROM t2 HAVING max(f4) is null) as not_in;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL No tables used
|
|
2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL no matching row in const table
|
|
SELECT (2, 0) NOT IN (SELECT f3, count(f4) FROM t2 HAVING max(f4) is null) as not_in;
|
|
not_in
|
|
NULL
|
|
EXPLAIN
|
|
SELECT (2, 0) NOT IN (SELECT max(f3+f3), count(f4) FROM t2) as not_in;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL No tables used
|
|
2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL no matching row in const table
|
|
SELECT (2, 0) NOT IN (SELECT max(f3+f3), count(f4) FROM t2) as not_in;
|
|
not_in
|
|
NULL
|
|
EXPLAIN
|
|
SELECT (2, 0) NOT IN (SELECT max(f3+f3), count(f4)+f3 FROM t2) as not_in;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL No tables used
|
|
2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL no matching row in const table
|
|
SELECT (2, 0) NOT IN (SELECT max(f3+f3), count(f4)+f3 FROM t2) as not_in;
|
|
not_in
|
|
NULL
|
|
EXPLAIN
|
|
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT min(f3)+f3, min(f4)+f3+max(f4) FROM t2);
|
|
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 NULL NULL NULL NULL NULL NULL NULL No matching min/max row
|
|
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT min(f3)+f3, min(f4)+f3+max(f4) FROM t2);
|
|
f1 f2
|
|
SET @@optimizer_switch = 'materialization=off,in_to_exists=on,semijoin=off';
|
|
EXPLAIN
|
|
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, min(f4) FROM t2);
|
|
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 NULL NULL NULL NULL NULL NULL NULL no matching row in const table
|
|
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, min(f4) FROM t2);
|
|
f1 f2
|
|
EXPLAIN
|
|
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3+f4, min(f4) FROM t2);
|
|
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 NULL NULL NULL NULL NULL NULL NULL no matching row in const table
|
|
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3+f4, min(f4) FROM t2);
|
|
f1 f2
|
|
EXPLAIN
|
|
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, min(f4)+max(f4) FROM t2);
|
|
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 NULL NULL NULL NULL NULL NULL NULL no matching row in const table
|
|
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, min(f4)+max(f4) FROM t2);
|
|
f1 f2
|
|
EXPLAIN
|
|
SELECT (2, 0) NOT IN (SELECT f3, min(f4) FROM t2) as not_in;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL No tables used
|
|
2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL no matching row in const table
|
|
SELECT (2, 0) NOT IN (SELECT f3, min(f4) FROM t2) as not_in;
|
|
not_in
|
|
NULL
|
|
EXPLAIN
|
|
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, count(f4) FROM t2);
|
|
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 NULL NULL NULL NULL NULL NULL NULL no matching row in const table
|
|
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, count(f4) FROM t2);
|
|
f1 f2
|
|
EXPLAIN
|
|
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, f3 + count(f4) FROM t2);
|
|
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 NULL NULL NULL NULL NULL NULL NULL no matching row in const table
|
|
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, f3 + count(f4) FROM t2);
|
|
f1 f2
|
|
EXPLAIN
|
|
SELECT (2, 0) NOT IN (SELECT f3, count(f4) FROM t2) as not_in;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL No tables used
|
|
2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL no matching row in const table
|
|
SELECT (2, 0) NOT IN (SELECT f3, count(f4) FROM t2) as not_in;
|
|
not_in
|
|
NULL
|
|
EXPLAIN
|
|
SELECT (2, 0) NOT IN (SELECT f3, count(f4) FROM t2 HAVING max(f4) > 7) as not_in;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL No tables used
|
|
2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL no matching row in const table
|
|
SELECT (2, 0) NOT IN (SELECT f3, count(f4) FROM t2 HAVING max(f4) > 7) as not_in;
|
|
not_in
|
|
1
|
|
EXPLAIN
|
|
SELECT (2, 0) NOT IN (SELECT f3, count(f4) FROM t2 HAVING max(f4) is null) as not_in;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL No tables used
|
|
2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL no matching row in const table
|
|
SELECT (2, 0) NOT IN (SELECT f3, count(f4) FROM t2 HAVING max(f4) is null) as not_in;
|
|
not_in
|
|
NULL
|
|
EXPLAIN
|
|
SELECT (2, 0) NOT IN (SELECT max(f3+f3), count(f4) FROM t2) as not_in;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL No tables used
|
|
2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL no matching row in const table
|
|
SELECT (2, 0) NOT IN (SELECT max(f3+f3), count(f4) FROM t2) as not_in;
|
|
not_in
|
|
NULL
|
|
EXPLAIN
|
|
SELECT (2, 0) NOT IN (SELECT max(f3+f3), count(f4)+f3 FROM t2) as not_in;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL No tables used
|
|
2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL no matching row in const table
|
|
SELECT (2, 0) NOT IN (SELECT max(f3+f3), count(f4)+f3 FROM t2) as not_in;
|
|
not_in
|
|
NULL
|
|
EXPLAIN
|
|
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT min(f3)+f3, min(f4)+f3+max(f4) FROM t2);
|
|
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 NULL NULL NULL NULL NULL NULL NULL No matching min/max row
|
|
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT min(f3)+f3, min(f4)+f3+max(f4) FROM t2);
|
|
f1 f2
|
|
INSERT INTO t1 VALUES (1, 2);
|
|
INSERT INTO t1 VALUES (3, 4);
|
|
INSERT INTO t2 VALUES (5, 6);
|
|
INSERT INTO t2 VALUES (7, 8);
|
|
SET @@optimizer_switch = 'materialization=on,in_to_exists=off,semijoin=off';
|
|
EXPLAIN
|
|
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, min(f4) FROM t2 WHERE f3 > 10);
|
|
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 MATERIALIZED t2 range PRIMARY PRIMARY 4 NULL 1 Using index condition; Rowid-ordered scan
|
|
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, min(f4) FROM t2 WHERE f3 > 10);
|
|
f1 f2
|
|
EXPLAIN
|
|
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3+f4, min(f4) FROM t2 WHERE f3 > 10);
|
|
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 MATERIALIZED t2 range PRIMARY PRIMARY 4 NULL 1 Using index condition; Rowid-ordered scan
|
|
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3+f4, min(f4) FROM t2 WHERE f3 > 10);
|
|
f1 f2
|
|
EXPLAIN
|
|
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, min(f4)+max(f4) FROM t2 WHERE f3 > 10);
|
|
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 MATERIALIZED t2 range PRIMARY PRIMARY 4 NULL 1 Using index condition; Rowid-ordered scan
|
|
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, min(f4)+max(f4) FROM t2 WHERE f3 > 10);
|
|
f1 f2
|
|
EXPLAIN
|
|
SELECT (2, 0) NOT IN (SELECT f3, min(f4) FROM t2 WHERE f3 > 10) as not_in;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL No tables used
|
|
2 SUBQUERY t2 range PRIMARY PRIMARY 4 NULL 1 Using index condition; Rowid-ordered scan
|
|
SELECT (2, 0) NOT IN (SELECT f3, min(f4) FROM t2 WHERE f3 > 10) as not_in;
|
|
not_in
|
|
NULL
|
|
EXPLAIN
|
|
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, count(f4) FROM t2 WHERE f3 > 10);
|
|
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 MATERIALIZED t2 range PRIMARY PRIMARY 4 NULL 1 Using index condition; Rowid-ordered scan
|
|
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, count(f4) FROM t2 WHERE f3 > 10);
|
|
f1 f2
|
|
EXPLAIN
|
|
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, f3 + count(f4) FROM t2 WHERE f3 > 10);
|
|
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 MATERIALIZED t2 range PRIMARY PRIMARY 4 NULL 1 Using index condition; Rowid-ordered scan
|
|
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, f3 + count(f4) FROM t2 WHERE f3 > 10);
|
|
f1 f2
|
|
EXPLAIN
|
|
SELECT (2, 0) NOT IN (SELECT f3, count(f4) FROM t2 WHERE f3 > 10) as not_in;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL No tables used
|
|
2 SUBQUERY t2 range PRIMARY PRIMARY 4 NULL 1 Using index condition; Rowid-ordered scan
|
|
SELECT (2, 0) NOT IN (SELECT f3, count(f4) FROM t2 WHERE f3 > 10) as not_in;
|
|
not_in
|
|
NULL
|
|
EXPLAIN
|
|
SELECT (2, 0) NOT IN (SELECT f3, count(f4) FROM t2 WHERE f3 > 10 HAVING max(f4) > 7) as not_in;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL No tables used
|
|
2 SUBQUERY t2 range PRIMARY PRIMARY 4 NULL 1 Using index condition; Rowid-ordered scan
|
|
SELECT (2, 0) NOT IN (SELECT f3, count(f4) FROM t2 WHERE f3 > 10 HAVING max(f4) > 7) as not_in;
|
|
not_in
|
|
1
|
|
EXPLAIN
|
|
SELECT (2, 0) NOT IN (SELECT f3, count(f4) FROM t2 WHERE f3 > 10 HAVING max(f4) is null) as not_in;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL No tables used
|
|
2 SUBQUERY t2 range PRIMARY PRIMARY 4 NULL 1 Using index condition; Rowid-ordered scan
|
|
SELECT (2, 0) NOT IN (SELECT f3, count(f4) FROM t2 WHERE f3 > 10 HAVING max(f4) is null) as not_in;
|
|
not_in
|
|
NULL
|
|
EXPLAIN
|
|
SELECT (2, 0) NOT IN (SELECT max(f3+f3), count(f4) FROM t2 WHERE f3 > 10) as not_in;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL No tables used
|
|
2 SUBQUERY t2 range PRIMARY PRIMARY 4 NULL 1 Using index condition; Rowid-ordered scan
|
|
SELECT (2, 0) NOT IN (SELECT max(f3+f3), count(f4) FROM t2 WHERE f3 > 10) as not_in;
|
|
not_in
|
|
NULL
|
|
EXPLAIN
|
|
SELECT (2, 0) NOT IN (SELECT max(f3+f3), count(f4)+f3 FROM t2 WHERE f3 > 10) as not_in;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL No tables used
|
|
2 SUBQUERY t2 range PRIMARY PRIMARY 4 NULL 1 Using index condition; Rowid-ordered scan
|
|
SELECT (2, 0) NOT IN (SELECT max(f3+f3), count(f4)+f3 FROM t2 WHERE f3 > 10) as not_in;
|
|
not_in
|
|
NULL
|
|
EXPLAIN
|
|
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT min(f3)+f3, min(f4)+f3+max(f4) FROM t2 WHERE f3 > 10);
|
|
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 NULL NULL NULL NULL NULL NULL NULL No matching min/max row
|
|
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT min(f3)+f3, min(f4)+f3+max(f4) FROM t2 WHERE f3 > 10);
|
|
f1 f2
|
|
SET @@optimizer_switch = 'materialization=off,in_to_exists=on,semijoin=off';
|
|
EXPLAIN
|
|
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, min(f4) FROM t2 WHERE f3 > 10);
|
|
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 range PRIMARY PRIMARY 4 NULL 1 Using index condition; Rowid-ordered scan
|
|
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, min(f4) FROM t2 WHERE f3 > 10);
|
|
f1 f2
|
|
EXPLAIN
|
|
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3+f4, min(f4) FROM t2 WHERE f3 > 10);
|
|
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 range PRIMARY PRIMARY 4 NULL 1 Using index condition; Rowid-ordered scan
|
|
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3+f4, min(f4) FROM t2 WHERE f3 > 10);
|
|
f1 f2
|
|
EXPLAIN
|
|
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, min(f4)+max(f4) FROM t2 WHERE f3 > 10);
|
|
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 range PRIMARY PRIMARY 4 NULL 1 Using index condition; Rowid-ordered scan
|
|
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, min(f4)+max(f4) FROM t2 WHERE f3 > 10);
|
|
f1 f2
|
|
EXPLAIN
|
|
SELECT (2, 0) NOT IN (SELECT f3, min(f4) FROM t2 WHERE f3 > 10) as not_in;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL No tables used
|
|
2 SUBQUERY t2 range PRIMARY PRIMARY 4 NULL 1 Using index condition; Rowid-ordered scan
|
|
SELECT (2, 0) NOT IN (SELECT f3, min(f4) FROM t2 WHERE f3 > 10) as not_in;
|
|
not_in
|
|
NULL
|
|
EXPLAIN
|
|
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, count(f4) FROM t2 WHERE f3 > 10);
|
|
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 range PRIMARY PRIMARY 4 NULL 1 Using index condition; Rowid-ordered scan
|
|
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, count(f4) FROM t2 WHERE f3 > 10);
|
|
f1 f2
|
|
EXPLAIN
|
|
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, f3 + count(f4) FROM t2 WHERE f3 > 10);
|
|
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 range PRIMARY PRIMARY 4 NULL 1 Using index condition; Rowid-ordered scan
|
|
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, f3 + count(f4) FROM t2 WHERE f3 > 10);
|
|
f1 f2
|
|
EXPLAIN
|
|
SELECT (2, 0) NOT IN (SELECT f3, count(f4) FROM t2 WHERE f3 > 10) as not_in;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL No tables used
|
|
2 SUBQUERY t2 range PRIMARY PRIMARY 4 NULL 1 Using index condition; Rowid-ordered scan
|
|
SELECT (2, 0) NOT IN (SELECT f3, count(f4) FROM t2 WHERE f3 > 10) as not_in;
|
|
not_in
|
|
NULL
|
|
EXPLAIN
|
|
SELECT (2, 0) NOT IN (SELECT f3, count(f4) FROM t2 WHERE f3 > 10 HAVING max(f4) > 7) as not_in;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL No tables used
|
|
2 SUBQUERY t2 range PRIMARY PRIMARY 4 NULL 1 Using index condition; Rowid-ordered scan
|
|
SELECT (2, 0) NOT IN (SELECT f3, count(f4) FROM t2 WHERE f3 > 10 HAVING max(f4) > 7) as not_in;
|
|
not_in
|
|
1
|
|
EXPLAIN
|
|
SELECT (2, 0) NOT IN (SELECT f3, count(f4) FROM t2 WHERE f3 > 10 HAVING max(f4) is null) as not_in;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL No tables used
|
|
2 SUBQUERY t2 range PRIMARY PRIMARY 4 NULL 1 Using index condition; Rowid-ordered scan
|
|
SELECT (2, 0) NOT IN (SELECT f3, count(f4) FROM t2 WHERE f3 > 10 HAVING max(f4) is null) as not_in;
|
|
not_in
|
|
NULL
|
|
EXPLAIN
|
|
SELECT (2, 0) NOT IN (SELECT max(f3+f3), count(f4) FROM t2 WHERE f3 > 10) as not_in;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL No tables used
|
|
2 SUBQUERY t2 range PRIMARY PRIMARY 4 NULL 1 Using index condition; Rowid-ordered scan
|
|
SELECT (2, 0) NOT IN (SELECT max(f3+f3), count(f4) FROM t2 WHERE f3 > 10) as not_in;
|
|
not_in
|
|
NULL
|
|
EXPLAIN
|
|
SELECT (2, 0) NOT IN (SELECT max(f3+f3), count(f4)+f3 FROM t2 WHERE f3 > 10) as not_in;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL No tables used
|
|
2 SUBQUERY t2 range PRIMARY PRIMARY 4 NULL 1 Using index condition; Rowid-ordered scan
|
|
SELECT (2, 0) NOT IN (SELECT max(f3+f3), count(f4)+f3 FROM t2 WHERE f3 > 10) as not_in;
|
|
not_in
|
|
NULL
|
|
EXPLAIN
|
|
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT min(f3)+f3, min(f4)+f3+max(f4) FROM t2 WHERE f3 > 10);
|
|
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 NULL NULL NULL NULL NULL NULL NULL No matching min/max row
|
|
SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT min(f3)+f3, min(f4)+f3+max(f4) FROM t2 WHERE f3 > 10);
|
|
f1 f2
|
|
set @@optimizer_switch=@save_optimizer_switch;
|
|
drop table t1,t2;
|
|
#
|
|
# LP BUG#613029 Wrong result with materialization and semijoin, and
|
|
# valgrind warnings in Protocol::net_store_data with materialization
|
|
# for implicit grouping
|
|
#
|
|
CREATE TABLE t1 (
|
|
pk int(11) NOT NULL AUTO_INCREMENT,
|
|
f2 int(11) NOT NULL,
|
|
f3 varchar(1) NOT NULL,
|
|
PRIMARY KEY (pk),
|
|
KEY f2 (f2));
|
|
INSERT INTO t1 VALUES (1,9,'x');
|
|
INSERT INTO t1 VALUES (2,5,'g');
|
|
CREATE TABLE t2 (
|
|
pk int(11) NOT NULL AUTO_INCREMENT,
|
|
f2 int(11) NOT NULL,
|
|
f3 varchar(1) NOT NULL,
|
|
PRIMARY KEY (pk),
|
|
KEY f2 (f2));
|
|
INSERT INTO t2 VALUES (1,7,'p');
|
|
set @save_optimizer_switch=@@optimizer_switch;
|
|
set @@optimizer_switch='materialization=off,in_to_exists=on,semijoin=off';
|
|
EXPLAIN
|
|
SELECT t1.f3, MAX(t1.f2)
|
|
FROM t1, t2
|
|
WHERE (t2.pk = t1.pk) AND t2.pk IN (SELECT f2 FROM t1);
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t2 system PRIMARY NULL NULL NULL 1
|
|
1 PRIMARY t1 const PRIMARY PRIMARY 4 const 1
|
|
2 DEPENDENT SUBQUERY t1 index_subquery f2 f2 4 func 1 Using index
|
|
SELECT t1.f3, MAX(t1.f2)
|
|
FROM t1, t2
|
|
WHERE (t2.pk = t1.pk) AND t2.pk IN (SELECT f2 FROM t1);
|
|
f3 MAX(t1.f2)
|
|
NULL NULL
|
|
set @@optimizer_switch='materialization=on,in_to_exists=off,semijoin=off';
|
|
EXPLAIN
|
|
SELECT t1.f3, MAX(t1.f2)
|
|
FROM t1, t2
|
|
WHERE (t2.pk = t1.pk) AND t2.pk IN (SELECT f2 FROM t1);
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t2 system PRIMARY NULL NULL NULL 1
|
|
1 PRIMARY t1 const PRIMARY PRIMARY 4 const 1
|
|
2 MATERIALIZED t1 index NULL f2 4 NULL 2 Using index
|
|
SELECT t1.f3, MAX(t1.f2)
|
|
FROM t1, t2
|
|
WHERE (t2.pk = t1.pk) AND t2.pk IN (SELECT f2 FROM t1);
|
|
f3 MAX(t1.f2)
|
|
NULL NULL
|
|
TODO: add a test case for semijoin when the wrong result is fixed
|
|
set @@optimizer_switch='materialization=off,semijoin=on';
|
|
set @@optimizer_switch=@save_optimizer_switch;
|
|
drop table t1, t2;
|
|
#
|
|
# LP BUG#777691 Wrong result with subqery in select list and subquery cache=off in maria-5.3
|
|
#
|
|
CREATE TABLE t1 ( f1 varchar(32)) ;
|
|
INSERT INTO t1 VALUES ('b'),('x'),('c'),('x');
|
|
CREATE TABLE t2 ( f2 int, f3 varchar(32)) ;
|
|
INSERT INTO t2 VALUES (1,'x');
|
|
set @save_optimizer_switch=@@optimizer_switch;
|
|
set @@optimizer_switch='materialization=off,in_to_exists=on,subquery_cache=off';
|
|
EXPLAIN
|
|
SELECT t1.f1, ( SELECT MAX( f2 ) FROM t2 WHERE t2.f3 = t1.f1 ) as max_f2 FROM t1;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 ALL NULL NULL NULL NULL 4
|
|
2 DEPENDENT SUBQUERY t2 system NULL NULL NULL NULL 1
|
|
SELECT t1.f1, ( SELECT MAX( f2 ) FROM t2 WHERE t2.f3 = t1.f1 ) as max_f2 FROM t1;
|
|
f1 max_f2
|
|
b NULL
|
|
x 1
|
|
c NULL
|
|
x 1
|
|
set @@optimizer_switch='materialization=on,in_to_exists=off,subquery_cache=off';
|
|
EXPLAIN
|
|
SELECT t1.f1, ( SELECT MAX( f2 ) FROM t2 WHERE t2.f3 = t1.f1 ) as max_f2 FROM t1;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 ALL NULL NULL NULL NULL 4
|
|
2 DEPENDENT SUBQUERY t2 system NULL NULL NULL NULL 1
|
|
SELECT t1.f1, ( SELECT MAX( f2 ) FROM t2 WHERE t2.f3 = t1.f1 ) as max_f2 FROM t1;
|
|
f1 max_f2
|
|
b NULL
|
|
x 1
|
|
c NULL
|
|
x 1
|
|
set @@optimizer_switch='materialization=off,in_to_exists=on,subquery_cache=off';
|
|
Even when t2 is not constant table, the result must be the same.
|
|
INSERT INTO t2 VALUES (2,'y');
|
|
EXPLAIN
|
|
SELECT t1.f1, ( SELECT MAX( f2 ) FROM t2 WHERE t2.f3 = t1.f1 ) as max_f2 FROM t1;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 ALL NULL NULL NULL NULL 4
|
|
2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 2 Using where
|
|
SELECT t1.f1, ( SELECT MAX( f2 ) FROM t2 WHERE t2.f3 = t1.f1 ) as max_f2 FROM t1;
|
|
f1 max_f2
|
|
b NULL
|
|
x 1
|
|
c NULL
|
|
x 1
|
|
set @@optimizer_switch=@save_optimizer_switch;
|
|
drop table t1, t2;
|
|
#
|
|
# LP BUG#641203 Query returns rows where no result is expected (impossible WHERE)
|
|
#
|
|
CREATE TABLE t1 (c1 varchar(1) DEFAULT NULL) CHARSET=latin1;
|
|
CREATE TABLE t2 (c1 varchar(1) DEFAULT NULL) CHARSET=latin1;
|
|
INSERT INTO t2 VALUES ('k'), ('d'),('x');
|
|
CREATE TABLE t3 (c1 varchar(1) DEFAULT NULL) CHARSET=latin1;
|
|
INSERT INTO t3 VALUES ('a'), ('b'), ('c');
|
|
CREATE TABLE t4 (c1 varchar(1) primary key) CHARSET=latin1;
|
|
INSERT INTO t4 VALUES ('k'), ('d');
|
|
SET @save_optimizer_switch=@@optimizer_switch;
|
|
SET optimizer_switch='outer_join_with_cache=off';
|
|
SET optimizer_switch='semijoin_with_cache=off';
|
|
SET optimizer_switch='materialization=off';
|
|
EXPLAIN
|
|
SELECT * FROM t1 RIGHT JOIN t2 ON t1.c1 WHERE 's' IN (SELECT c1 FROM t2);
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 system NULL NULL NULL NULL 0 Const row not found
|
|
1 PRIMARY t2 ALL NULL NULL NULL NULL 3 Using where; FirstMatch(t1)
|
|
1 PRIMARY t2 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join)
|
|
SELECT * FROM t1 RIGHT JOIN t2 ON t1.c1 WHERE 's' IN (SELECT c1 FROM t2);
|
|
c1 c1
|
|
EXPLAIN
|
|
SELECT * FROM t2 LEFT JOIN t1 ON t1.c1 WHERE 's' IN (SELECT c1 FROM t2);
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 system NULL NULL NULL NULL 0 Const row not found
|
|
1 PRIMARY t2 ALL NULL NULL NULL NULL 3 Using where; FirstMatch(t1)
|
|
1 PRIMARY t2 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join)
|
|
SELECT * FROM t2 LEFT JOIN t1 ON t1.c1 WHERE 's' IN (SELECT c1 FROM t2);
|
|
c1 c1
|
|
SET optimizer_switch='materialization=on';
|
|
EXPLAIN
|
|
SELECT * FROM (t2 LEFT JOIN t1 ON t1.c1) LEFT JOIN t3 on t3.c1 WHERE 's' IN (SELECT c1 FROM t2);
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 system NULL NULL NULL NULL 0 Const row not found
|
|
1 PRIMARY t2 ALL NULL NULL NULL NULL 3 Using where; Start temporary; End temporary
|
|
1 PRIMARY t2 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join)
|
|
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 Using where
|
|
SELECT * FROM (t2 LEFT JOIN t1 ON t1.c1) LEFT JOIN t3 on t3.c1 WHERE 's' IN (SELECT c1 FROM t2);
|
|
c1 c1 c1
|
|
EXPLAIN
|
|
SELECT * FROM t4 LEFT JOIN t2 ON t4.c1 WHERE 's' IN (SELECT c1 FROM t2);
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t4 index NULL PRIMARY 3 NULL 2 Using index
|
|
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1
|
|
1 PRIMARY t2 ALL NULL NULL NULL NULL 3 Using where
|
|
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 3 Using where
|
|
SELECT * FROM t4 LEFT JOIN t2 ON t4.c1 WHERE 's' IN (SELECT c1 FROM t2);
|
|
c1 c1
|
|
SET optimizer_switch=@save_optimizer_switch;
|
|
drop table t1, t2, t3, t4;
|
|
#
|
|
# LP BUG#675981 Assertion `cache != __null' failed in sub_select_cache()
|
|
# on EXPLAIN
|
|
#
|
|
CREATE TABLE t1 (f1 int,f2 int) ;
|
|
INSERT IGNORE INTO t1 VALUES ('2','5'),('2',NULL);
|
|
CREATE TABLE t2 (f1 int, f5 int) ;
|
|
INSERT IGNORE INTO t2 VALUES (1,0);
|
|
CREATE TABLE t3 (f4 int) ;
|
|
INSERT IGNORE INTO t3 VALUES (0),(0);
|
|
set @@optimizer_switch='in_to_exists=on,materialization=off,semijoin=off';
|
|
EXPLAIN
|
|
SELECT * FROM t2
|
|
WHERE f1 IN (SELECT t1.f2 FROM t1 JOIN t3 ON t3.f4);
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t2 system NULL NULL NULL NULL 1
|
|
2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 Using where
|
|
2 DEPENDENT SUBQUERY t3 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join)
|
|
drop table t1, t2, t3;
|
|
#
|
|
# LP BUG#680005 Second assertion `cache != __null' failed in
|
|
# sub_select_cache() on EXPLAIN
|
|
#
|
|
CREATE TABLE t1 (f1 int,f2 int,f4 int,f6 int,KEY (f4)) ;
|
|
INSERT IGNORE INTO t1 VALUES
|
|
('1','5','1','0'),('2','1','1','0'),('2','2','2','0'),('0',NULL,'0','0'),
|
|
('2','1','2','0'),('2','0','0','0'),('2','2','2','0'),('2','8','2','0'),
|
|
('2','7','2','0'),('2','5','2','0'),('2',NULL,'1','0');
|
|
CREATE TABLE t2 (f3 int) ;
|
|
INSERT IGNORE INTO t2 VALUES ('7');
|
|
CREATE TABLE t3 (f3 int) ;
|
|
INSERT IGNORE INTO t3 VALUES ('2');
|
|
EXPLAIN
|
|
SELECT t1.f4
|
|
FROM t2 JOIN t1 ON t1.f6
|
|
WHERE
|
|
( t1.f2 ) IN (SELECT SUBQUERY2_t1.f3
|
|
FROM t3 AS SUBQUERY2_t1
|
|
JOIN
|
|
(t1 AS SUBQUERY2_t2
|
|
JOIN
|
|
t1 AS SUBQUERY2_t3 ON SUBQUERY2_t3.f1)
|
|
ON SUBQUERY2_t3.f2)
|
|
GROUP BY t1.f4 ORDER BY t1.f1 LIMIT 10;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t2 system NULL NULL NULL NULL 1 Using temporary; Using filesort
|
|
1 PRIMARY t1 ALL NULL NULL NULL NULL 11 Using where
|
|
2 DEPENDENT SUBQUERY SUBQUERY2_t1 system NULL NULL NULL NULL 1
|
|
2 DEPENDENT SUBQUERY SUBQUERY2_t2 index NULL f4 5 NULL 11 Using index
|
|
2 DEPENDENT SUBQUERY SUBQUERY2_t3 ALL NULL NULL NULL NULL 11 Using where; Using join buffer (flat, BNL join)
|
|
drop table t1, t2, t3;
|
|
#
|
|
# LP BUG#680038 bool close_thread_table(THD*, TABLE**):
|
|
# Assertion `table->key_read == 0' failed in EXPLAIN
|
|
#
|
|
CREATE TABLE t1 (f1 int,f3 int,f4 int) ;
|
|
INSERT IGNORE INTO t1 VALUES (NULL,1,0);
|
|
CREATE TABLE t2 (f2 int,f4 int,f5 int) ;
|
|
INSERT IGNORE INTO t2 VALUES (8,0,0),(5,0,0);
|
|
CREATE TABLE t3 (f4 int,KEY (f4)) ;
|
|
INSERT IGNORE INTO t3 VALUES (0),(0);
|
|
set @@optimizer_switch='semijoin=off';
|
|
# NOTE: the following should have 'SUBQUERY', not 'DEPENDENT SUBQUERY'
|
|
# for line with id=2, see MDEV-27794.
|
|
EXPLAIN
|
|
SELECT * FROM t1 WHERE
|
|
(SELECT f2 FROM t2
|
|
WHERE f4 <= ALL
|
|
(SELECT max(SQ1_t1.f4)
|
|
FROM t3 AS SQ1_t1 JOIN t3 AS SQ1_t3 ON SQ1_t3.f4
|
|
GROUP BY SQ1_t1.f4));
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 system NULL NULL NULL NULL 1
|
|
2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 2 Using where
|
|
3 SUBQUERY SQ1_t1 index NULL f4 5 NULL 2 Using index; Using temporary
|
|
3 SUBQUERY SQ1_t3 range f4 f4 5 NULL 2 Using where; Using index; Using join buffer (flat, BNL join)
|
|
SELECT * FROM t1 WHERE
|
|
(SELECT f2 FROM t2
|
|
WHERE f4 <= ALL
|
|
(SELECT max(SQ1_t1.f4)
|
|
FROM t3 AS SQ1_t1 JOIN t3 AS SQ1_t3 ON SQ1_t3.f4
|
|
GROUP BY SQ1_t1.f4));
|
|
ERROR 21000: Subquery returns more than 1 row
|
|
drop table t1, t2, t3;
|
|
#
|
|
# BUG#52317: Assertion failing in Field_varstring::store()
|
|
# at field.cc:6833
|
|
#
|
|
CREATE TABLE t1 (i INTEGER);
|
|
INSERT INTO t1 VALUES (1);
|
|
CREATE TABLE t2 (i INTEGER, KEY k(i));
|
|
INSERT INTO t2 VALUES (1), (2);
|
|
EXPLAIN
|
|
SELECT i FROM t1 WHERE (1) NOT IN (SELECT i FROM t2);
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 system NULL NULL NULL NULL 1
|
|
2 SUBQUERY t2 index_subquery k k 5 const 2 Using index
|
|
DROP TABLE t2;
|
|
DROP TABLE t1;
|
|
#
|
|
# LP BUG#680846: Crash in clear_tables() with subqueries
|
|
#
|
|
CREATE TABLE t1 (f3 int) ;
|
|
INSERT IGNORE INTO t1 VALUES (0),(0);
|
|
CREATE TABLE t2 (f1 int,f3 int,f4 varchar(32)) ;
|
|
INSERT IGNORE INTO t2 VALUES (1,0,'f');
|
|
EXPLAIN
|
|
SELECT COUNT(t2.f3),
|
|
(SELECT COUNT(f3) FROM t1 WHERE t2.f1) AS f9
|
|
FROM t2 JOIN t1 ON t1.f3
|
|
WHERE ('v') IN (SELECT f4 FROM t2)
|
|
GROUP BY f9;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE
|
|
3 SUBQUERY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
|
|
2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2
|
|
SELECT COUNT(t2.f3),
|
|
(SELECT COUNT(f3) FROM t1 WHERE t2.f1) AS f9
|
|
FROM t2 JOIN t1 ON t1.f3
|
|
WHERE ('v') IN (SELECT f4 FROM t2)
|
|
GROUP BY f9;
|
|
COUNT(t2.f3) f9
|
|
EXPLAIN
|
|
SELECT COUNT(t2.f3),
|
|
(SELECT COUNT(f3) FROM t1 WHERE t2.f1) AS f9
|
|
FROM t2 JOIN t1 ON t1.f3
|
|
WHERE ('v') IN (SELECT f4 FROM t2)
|
|
ORDER BY f9;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE
|
|
3 SUBQUERY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
|
|
2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2
|
|
SELECT COUNT(t2.f3),
|
|
(SELECT COUNT(f3) FROM t1 WHERE t2.f1) AS f9
|
|
FROM t2 JOIN t1 ON t1.f3
|
|
WHERE ('v') IN (SELECT f4 FROM t2)
|
|
ORDER BY f9;
|
|
COUNT(t2.f3) f9
|
|
0 NULL
|
|
EXPLAIN
|
|
SELECT COUNT(t2.f3),
|
|
(SELECT t2.f1 FROM t1 limit 1) AS f9
|
|
FROM t2 JOIN t1
|
|
WHERE ('v') IN (SELECT f4 FROM t2)
|
|
GROUP BY f9;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE
|
|
3 SUBQUERY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
|
|
2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2
|
|
SELECT COUNT(t2.f3),
|
|
(SELECT t2.f1 FROM t1 limit 1) AS f9
|
|
FROM t2 JOIN t1
|
|
WHERE ('v') IN (SELECT f4 FROM t2)
|
|
GROUP BY f9;
|
|
COUNT(t2.f3) f9
|
|
EXPLAIN
|
|
SELECT COUNT(t2.f3),
|
|
(SELECT t2.f1 FROM t1 limit 1) AS f9
|
|
FROM t2 JOIN t1
|
|
WHERE ('v') IN (SELECT f4 FROM t2)
|
|
ORDER BY f9;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE
|
|
3 SUBQUERY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
|
|
2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2
|
|
SELECT COUNT(t2.f3),
|
|
(SELECT t2.f1 FROM t1 limit 1) AS f9
|
|
FROM t2 JOIN t1
|
|
WHERE ('v') IN (SELECT f4 FROM t2)
|
|
ORDER BY f9;
|
|
COUNT(t2.f3) f9
|
|
0 NULL
|
|
drop table t1,t2;
|
|
#
|
|
# LP BUG#682683 Crash in create_tmp_table called from
|
|
# JOIN::init_execution
|
|
#
|
|
CREATE TABLE t2 (f1 int) ;
|
|
INSERT INTO t2 VALUES (1),(2);
|
|
CREATE TABLE t1 (f1 int) ;
|
|
EXPLAIN
|
|
SELECT (SELECT f1 FROM t1) AS field1 FROM t2 GROUP BY field1;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t2 ALL NULL NULL NULL NULL 2
|
|
2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL no matching row in const table
|
|
SELECT (SELECT f1 FROM t1) AS field1 FROM t2 GROUP BY field1;
|
|
field1
|
|
NULL
|
|
EXPLAIN
|
|
SELECT (SELECT f1 FROM t1) AS field1 FROM t2 ORDER BY field1;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t2 ALL NULL NULL NULL NULL 2
|
|
2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL no matching row in const table
|
|
SELECT (SELECT f1 FROM t1) AS field1 FROM t2 ORDER BY field1;
|
|
field1
|
|
NULL
|
|
NULL
|
|
INSERT INTO t1 VALUES (1),(2);
|
|
EXPLAIN
|
|
SELECT (SELECT f1 FROM t1) AS field1 FROM t2 GROUP BY field1;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t2 ALL NULL NULL NULL NULL 2
|
|
2 SUBQUERY t1 ALL NULL NULL NULL NULL 2
|
|
SELECT (SELECT f1 FROM t1) AS field1 FROM t2 GROUP BY field1;
|
|
ERROR 21000: Subquery returns more than 1 row
|
|
EXPLAIN
|
|
SELECT (SELECT f1 FROM t1) AS field1 FROM t2 ORDER BY field1;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t2 ALL NULL NULL NULL NULL 2
|
|
2 SUBQUERY t1 ALL NULL NULL NULL NULL 2
|
|
SELECT (SELECT f1 FROM t1) AS field1 FROM t2 ORDER BY field1;
|
|
ERROR 21000: Subquery returns more than 1 row
|
|
drop table t1,t2;
|
|
#
|
|
# LP BUG#680943 Assertion `!table || (!table->read_set ||
|
|
# bitmap_is_set(table->read_set, field_index))' failed with subquery
|
|
#
|
|
CREATE TABLE t1 (f1 int,f3 int) ;
|
|
INSERT IGNORE INTO t1 VALUES ('6','0'),('4','0');
|
|
CREATE TABLE t2 (f1 int,f2 int,f3 int) ;
|
|
INSERT IGNORE INTO t2 VALUES ('6','0','0'),('2','0','0');
|
|
SELECT f2
|
|
FROM (SELECT * FROM t2) AS alias1
|
|
WHERE (SELECT SQ2_t2.f1
|
|
FROM t1 JOIN t1 AS SQ2_t2 ON SQ2_t2.f3
|
|
WHERE SQ2_t2.f3 AND alias1.f1)
|
|
ORDER BY f3 ;
|
|
f2
|
|
drop table t1,t2;
|
|
#
|
|
# LP BUG#715062: Wrong result with VIEW + UNION + subquery in maria-5.3-mwl89
|
|
#
|
|
create table t1 (f1 int);
|
|
create table t2 (f2 int);
|
|
create table t3 (f3 int);
|
|
insert into t1 values (2);
|
|
insert into t2 values (2);
|
|
insert into t3 values (7);
|
|
CREATE VIEW v1 AS SELECT 2 UNION SELECT 2 ;
|
|
CREATE VIEW v2 AS SELECT * from t1 UNION SELECT * from t2 ;
|
|
set @save_optimizer_switch=@@optimizer_switch;
|
|
SET @@optimizer_switch = 'in_to_exists=off,semijoin=off,materialization=on';
|
|
EXPLAIN
|
|
SELECT 'bug' FROM DUAL WHERE ( 5 ) IN ( SELECT * FROM v1 );
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL No tables used
|
|
2 SUBQUERY <derived3> const NULL distinct_key 4 const 1 Using where
|
|
3 DERIVED NULL NULL NULL NULL NULL NULL NULL No tables used
|
|
4 UNION NULL NULL NULL NULL NULL NULL NULL No tables used
|
|
NULL UNION RESULT <union3,4> ALL NULL NULL NULL NULL NULL
|
|
SELECT 'bug' FROM DUAL WHERE ( 5 ) IN ( SELECT * FROM v1 );
|
|
bug
|
|
EXPLAIN
|
|
SELECT ( 5 ) IN ( SELECT * FROM v1 );
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL No tables used
|
|
2 SUBQUERY <derived3> const NULL distinct_key 4 const 1 Using where
|
|
3 DERIVED NULL NULL NULL NULL NULL NULL NULL No tables used
|
|
4 UNION NULL NULL NULL NULL NULL NULL NULL No tables used
|
|
NULL UNION RESULT <union3,4> ALL NULL NULL NULL NULL NULL
|
|
SELECT ( 5 ) IN ( SELECT * FROM v1 );
|
|
( 5 ) IN ( SELECT * FROM v1 )
|
|
0
|
|
EXPLAIN
|
|
SELECT 'bug' FROM DUAL WHERE ( 5 ) IN (SELECT * FROM v2);
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL No tables used
|
|
2 SUBQUERY <derived3> const NULL distinct_key 5 const 1 Using where
|
|
3 DERIVED t1 system NULL NULL NULL NULL 1
|
|
4 UNION t2 system NULL NULL NULL NULL 1
|
|
NULL UNION RESULT <union3,4> ALL NULL NULL NULL NULL NULL
|
|
SELECT 'bug' FROM DUAL WHERE ( 5 ) IN (SELECT * FROM v2);
|
|
bug
|
|
EXPLAIN
|
|
SELECT 'bug' FROM t3 WHERE ( 5 ) IN (SELECT * FROM v2);
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t3 system NULL NULL NULL NULL 1
|
|
2 MATERIALIZED <derived3> ALL NULL NULL NULL NULL 2
|
|
3 DERIVED t1 system NULL NULL NULL NULL 1
|
|
4 UNION t2 system NULL NULL NULL NULL 1
|
|
NULL UNION RESULT <union3,4> ALL NULL NULL NULL NULL NULL
|
|
SELECT 'bug' FROM t3 WHERE ( 5 ) IN (SELECT * FROM v2);
|
|
bug
|
|
EXPLAIN
|
|
SELECT ( 5 ) IN ( SELECT * FROM v2 );
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL No tables used
|
|
2 SUBQUERY <derived3> index_subquery NULL distinct_key 5 const 2
|
|
3 DERIVED t1 system NULL NULL NULL NULL 1
|
|
4 UNION t2 system NULL NULL NULL NULL 1
|
|
NULL UNION RESULT <union3,4> ALL NULL NULL NULL NULL NULL
|
|
SELECT ( 5 ) IN ( SELECT * FROM v2 );
|
|
( 5 ) IN ( SELECT * FROM v2 )
|
|
0
|
|
SET @@optimizer_switch = 'in_to_exists=on,semijoin=off,materialization=off';
|
|
EXPLAIN
|
|
SELECT 'bug' FROM DUAL WHERE ( 5 ) IN ( SELECT * FROM v1 );
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL No tables used
|
|
2 SUBQUERY <derived3> const NULL distinct_key 4 const 1 Using where
|
|
3 DERIVED NULL NULL NULL NULL NULL NULL NULL No tables used
|
|
4 UNION NULL NULL NULL NULL NULL NULL NULL No tables used
|
|
NULL UNION RESULT <union3,4> ALL NULL NULL NULL NULL NULL
|
|
SELECT 'bug' FROM DUAL WHERE ( 5 ) IN ( SELECT * FROM v1 );
|
|
bug
|
|
EXPLAIN
|
|
SELECT ( 5 ) IN ( SELECT * FROM v1 );
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL No tables used
|
|
2 SUBQUERY <derived3> const NULL distinct_key 4 const 1 Using where
|
|
3 DERIVED NULL NULL NULL NULL NULL NULL NULL No tables used
|
|
4 UNION NULL NULL NULL NULL NULL NULL NULL No tables used
|
|
NULL UNION RESULT <union3,4> ALL NULL NULL NULL NULL NULL
|
|
SELECT ( 5 ) IN ( SELECT * FROM v1 );
|
|
( 5 ) IN ( SELECT * FROM v1 )
|
|
0
|
|
EXPLAIN
|
|
SELECT 'bug' FROM DUAL WHERE ( 5 ) IN (SELECT * FROM v2);
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL No tables used
|
|
2 SUBQUERY <derived3> const NULL distinct_key 5 const 1 Using where
|
|
3 DERIVED t1 system NULL NULL NULL NULL 1
|
|
4 UNION t2 system NULL NULL NULL NULL 1
|
|
NULL UNION RESULT <union3,4> ALL NULL NULL NULL NULL NULL
|
|
SELECT 'bug' FROM DUAL WHERE ( 5 ) IN (SELECT * FROM v2);
|
|
bug
|
|
EXPLAIN
|
|
SELECT 'bug' FROM t3 WHERE ( 5 ) IN (SELECT * FROM v2);
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t3 system NULL NULL NULL NULL 1
|
|
2 SUBQUERY <derived3> const NULL distinct_key 5 const 1 Using where
|
|
3 DERIVED t1 system NULL NULL NULL NULL 1
|
|
4 UNION t2 system NULL NULL NULL NULL 1
|
|
NULL UNION RESULT <union3,4> ALL NULL NULL NULL NULL NULL
|
|
SELECT 'bug' FROM t3 WHERE ( 5 ) IN (SELECT * FROM v2);
|
|
bug
|
|
EXPLAIN
|
|
SELECT ( 5 ) IN ( SELECT * FROM v2 );
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL No tables used
|
|
2 SUBQUERY <derived3> index_subquery NULL distinct_key 5 const 2
|
|
3 DERIVED t1 system NULL NULL NULL NULL 1
|
|
4 UNION t2 system NULL NULL NULL NULL 1
|
|
NULL UNION RESULT <union3,4> ALL NULL NULL NULL NULL NULL
|
|
SELECT ( 5 ) IN ( SELECT * FROM v2 );
|
|
( 5 ) IN ( SELECT * FROM v2 )
|
|
0
|
|
set @@optimizer_switch=@save_optimizer_switch;
|
|
drop table t1,t2,t3;
|
|
drop view v1,v2;
|
|
#
|
|
# LP BUG#715069 Wrong result with GROUP BY inside subquery and materialization=off
|
|
#
|
|
CREATE TABLE t0 ( f1 int(11), f2 int(11), f10 varchar(1), PRIMARY KEY (f1)) ;
|
|
INSERT INTO t0 VALUES (8,8,'u'),(10,5,'o');
|
|
CREATE TABLE t1 (f1a int, f2a int not null, f3a varchar(3) not null, PRIMARY KEY (f1a)) ;
|
|
INSERT INTO t1 VALUES
|
|
(8,8,'a1a'),
|
|
(10,5,'b1b');
|
|
CREATE TABLE t2 (f1b int, f2b int not null, f3b varchar(3) not null, PRIMARY KEY (f1b)) ;
|
|
INSERT INTO t2 VALUES
|
|
(10,5,'d1d');
|
|
set @save_optimizer_switch=@@optimizer_switch;
|
|
SET optimizer_switch='outer_join_with_cache=off';
|
|
set @@optimizer_switch = 'in_to_exists=on,materialization=off,semijoin=off';
|
|
EXPLAIN
|
|
SELECT alias2.f1 , alias2.f2
|
|
FROM t0 AS alias1
|
|
RIGHT JOIN t0 AS alias2 ON alias2.f10
|
|
WHERE ( alias2.f1 , alias2.f2 ) IN ( SELECT max(f2) , f1 FROM t0 GROUP BY f2 , f1 );
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY alias2 ALL NULL NULL NULL NULL 2 Using where
|
|
1 PRIMARY alias1 index NULL PRIMARY 4 NULL 2 Using where; Using index
|
|
2 DEPENDENT SUBQUERY t0 ALL NULL NULL NULL NULL 2 Using temporary
|
|
SELECT alias2.f1 , alias2.f2
|
|
FROM t0 AS alias1
|
|
RIGHT JOIN t0 AS alias2 ON alias2.f10
|
|
WHERE ( alias2.f1 , alias2.f2 ) IN ( SELECT max(f2) , f1 FROM t0 GROUP BY f2 , f1 );
|
|
f1 f2
|
|
8 8
|
|
Warnings:
|
|
Warning 1292 Truncated incorrect DECIMAL value: 'u'
|
|
EXPLAIN
|
|
SELECT * FROM t2 WHERE (f1b, f2b) IN (SELECT max(f1a), f2a FROM t1 GROUP BY f1a, f2a);
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t2 system NULL NULL NULL NULL 1
|
|
2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 Using temporary
|
|
SELECT * FROM t2 WHERE (f1b, f2b) IN (SELECT max(f1a), f2a FROM t1 GROUP BY f1a, f2a);
|
|
f1b f2b f3b
|
|
10 5 d1d
|
|
EXPLAIN
|
|
SELECT * FROM t2 WHERE (f1b) IN (SELECT max(f1a) FROM t1 GROUP BY f1a, f2a);
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t2 system NULL NULL NULL NULL 1
|
|
2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 Using temporary
|
|
SELECT * FROM t2 WHERE (f1b) IN (SELECT max(f1a) FROM t1 GROUP BY f1a, f2a);
|
|
f1b f2b f3b
|
|
10 5 d1d
|
|
set @@optimizer_switch = 'in_to_exists=off,materialization=on,semijoin=off';
|
|
EXPLAIN
|
|
SELECT alias2.f1 , alias2.f2
|
|
FROM t0 AS alias1
|
|
RIGHT JOIN t0 AS alias2 ON alias2.f10
|
|
WHERE ( alias2.f1 , alias2.f2 ) IN ( SELECT max(f2) , f1 FROM t0 GROUP BY f2 , f1 );
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY alias2 ALL NULL NULL NULL NULL 2 Using where
|
|
1 PRIMARY alias1 index NULL PRIMARY 4 NULL 2 Using where; Using index
|
|
2 MATERIALIZED t0 ALL NULL NULL NULL NULL 2 Using temporary
|
|
SELECT alias2.f1 , alias2.f2
|
|
FROM t0 AS alias1
|
|
RIGHT JOIN t0 AS alias2 ON alias2.f10
|
|
WHERE ( alias2.f1 , alias2.f2 ) IN ( SELECT max(f2) , f1 FROM t0 GROUP BY f2 , f1 );
|
|
f1 f2
|
|
8 8
|
|
Warnings:
|
|
Warning 1292 Truncated incorrect DECIMAL value: 'u'
|
|
EXPLAIN
|
|
SELECT * FROM t2 WHERE (f1b, f2b) IN (SELECT max(f1a), f2a FROM t1 GROUP BY f1a, f2a);
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t2 system NULL NULL NULL NULL 1
|
|
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 2 Using temporary
|
|
SELECT * FROM t2 WHERE (f1b, f2b) IN (SELECT max(f1a), f2a FROM t1 GROUP BY f1a, f2a);
|
|
f1b f2b f3b
|
|
10 5 d1d
|
|
EXPLAIN
|
|
SELECT * FROM t2 WHERE (f1b) IN (SELECT max(f1a) FROM t1 GROUP BY f1a, f2a);
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t2 system NULL NULL NULL NULL 1
|
|
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 2 Using temporary
|
|
SELECT * FROM t2 WHERE (f1b) IN (SELECT max(f1a) FROM t1 GROUP BY f1a, f2a);
|
|
f1b f2b f3b
|
|
10 5 d1d
|
|
set @@optimizer_switch=@save_optimizer_switch;
|
|
drop table t0,t1,t2;
|
|
#
|
|
# LP BUG#715759 Wrong result with in_to_exists=on in maria-5.3-mwl89
|
|
#
|
|
set @save_optimizer_switch=@@optimizer_switch;
|
|
CREATE TABLE t1 (a1 int, a2 int) ;
|
|
INSERT INTO t1 VALUES (1, 2);
|
|
INSERT INTO t1 VALUES (3, 4);
|
|
CREATE TABLE t2 (b1 int, b2 int) ;
|
|
INSERT INTO t2 VALUES (1, 2);
|
|
SET @@optimizer_switch = 'in_to_exists=on,materialization=off,semijoin=off';
|
|
EXPLAIN SELECT * FROM t1 WHERE a1 IN (SELECT b1 FROM t2 WHERE b1 = b2);
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where
|
|
2 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
|
|
SELECT * FROM t1 WHERE a1 IN (SELECT b1 FROM t2 WHERE b1 = b2);
|
|
a1 a2
|
|
set @@optimizer_switch=@save_optimizer_switch;
|
|
drop table t1, t2;
|
|
#
|
|
# LP BUG#772309 join_tab_cmp_straight(): Assertion `!jt2->emb_sj_nest' failed in maria-5.3-mwl89 with semijoin
|
|
#
|
|
CREATE TABLE t1 ( f2 int) ;
|
|
INSERT INTO t1 VALUES (0),(0);
|
|
CREATE TABLE t2 ( f1 int NOT NULL ) ;
|
|
INSERT INTO t2 VALUES (0),(0);
|
|
CREATE TABLE t3 ( f1 int NOT NULL , f2 int) ;
|
|
INSERT INTO t3 VALUES (0,0), (0,0);
|
|
EXPLAIN SELECT STRAIGHT_JOIN (
|
|
SELECT f2 FROM t1 WHERE ( f2 ) IN ( SELECT t3.f2 FROM t3 JOIN t2 ON t2.f1 = 1 )
|
|
) as exp;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL No tables used
|
|
2 SUBQUERY t1 ALL NULL NULL NULL NULL 2 Using where
|
|
3 DEPENDENT SUBQUERY t3 ALL NULL NULL NULL NULL 2 Using where
|
|
3 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join)
|
|
SELECT STRAIGHT_JOIN (
|
|
SELECT f2 FROM t1 WHERE ( f2 ) IN ( SELECT t3.f2 FROM t3 JOIN t2 ON t2.f1 = 1 )
|
|
) as exp;
|
|
exp
|
|
NULL
|
|
drop table t1, t2, t3;
|
|
#
|
|
# LP BUG#777597 Wrong result with multipart keys, in_to_exists=on, NOT IN in MWL#89
|
|
#
|
|
CREATE TABLE t1 ( f4 int);
|
|
INSERT IGNORE INTO t1 VALUES (2),(2);
|
|
CREATE TABLE t2 ( f3 int, f10 int, KEY (f10,f3) );
|
|
INSERT IGNORE INTO t2 VALUES (6, 1), (6, 1);
|
|
CREATE TABLE t3 ( f10 int );
|
|
INSERT IGNORE INTO t3 VALUES (1);
|
|
SET SESSION optimizer_switch='in_to_exists=on,materialization=off';
|
|
EXPLAIN
|
|
SELECT * FROM t1 WHERE ( 6 ) NOT IN ( SELECT t2.f3 FROM t2 JOIN t3 ON t3.f10 = t2.f10);
|
|
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 t3 system NULL NULL NULL NULL 1
|
|
2 SUBQUERY t2 ref_or_null f10 f10 10 const,const 2 Using where; Using index
|
|
SELECT * FROM t1 WHERE ( 6 ) NOT IN ( SELECT t2.f3 FROM t2 JOIN t3 ON t3.f10 = t2.f10);
|
|
f4
|
|
drop table t1,t2,t3;
|
|
#
|
|
# LP BUG#778413 Third crash in select_describe() in maria-5.3-mwl89
|
|
#
|
|
CREATE TABLE t1 ( f11 int) ;
|
|
INSERT INTO t1 VALUES (1),(1);
|
|
CREATE TABLE t2 ( f1 int NOT NULL) ;
|
|
INSERT INTO t2 VALUES (20);
|
|
CREATE TABLE t3 (f3 int) ;
|
|
INSERT INTO t3 VALUES (2),(2);
|
|
EXPLAIN SELECT * FROM t2
|
|
WHERE t2.f1 = (
|
|
SELECT MAX( f3 ) FROM t3
|
|
WHERE EXISTS (
|
|
SELECT DISTINCT f11
|
|
FROM t1));
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t2 system NULL NULL NULL NULL 1
|
|
2 SUBQUERY t3 ALL NULL NULL NULL NULL 2
|
|
3 SUBQUERY t1 ALL NULL NULL NULL NULL 2
|
|
drop table t1, t2, t3;
|
|
#
|
|
# LP BUG#802979 Assertion `table->key_read == 0' in close_thread_table
|
|
#
|
|
CREATE TABLE t1 ( f1 int, f2 int , KEY (f1)) ;
|
|
INSERT IGNORE INTO t1 VALUES (1,0),(5,0);
|
|
CREATE TABLE t2 ( f1 int, f2 int , KEY (f1)) ;
|
|
INSERT IGNORE INTO t2 VALUES (1,0),(5,0);
|
|
CREATE TABLE t3 ( f1 int, f2 int , KEY (f1)) ;
|
|
INSERT IGNORE INTO t3 VALUES (1,0),(5,0);
|
|
CREATE TABLE t4 ( f1 int, f2 int , KEY (f1)) ;
|
|
INSERT IGNORE INTO t4 VALUES (1,0),(5,0);
|
|
EXPLAIN
|
|
SELECT *
|
|
FROM t1, t2
|
|
WHERE t2.f2 = (SELECT f2 FROM t3
|
|
WHERE EXISTS (SELECT DISTINCT f1 FROM t4))
|
|
AND t2.f2 = t1.f1;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 ref f1 f1 5 const 0 Using where
|
|
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join)
|
|
2 SUBQUERY t3 ALL NULL NULL NULL NULL 2
|
|
3 SUBQUERY t4 index NULL f1 5 NULL 2 Using index
|
|
SELECT *
|
|
FROM t1, t2
|
|
WHERE t2.f2 = (SELECT f2 FROM t3
|
|
WHERE EXISTS (SELECT DISTINCT f1 FROM t4))
|
|
AND t2.f2 = t1.f1;
|
|
ERROR 21000: Subquery returns more than 1 row
|
|
EXPLAIN
|
|
SELECT *
|
|
FROM t1, t2
|
|
WHERE t2.f2 = (SELECT f2 FROM t3
|
|
WHERE EXISTS (SELECT DISTINCT f1 FROM t4) LIMIT 1)
|
|
AND t2.f2 = t1.f1;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 ref f1 f1 5 const 0 Using where
|
|
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join)
|
|
2 SUBQUERY t3 ALL NULL NULL NULL NULL 2
|
|
3 SUBQUERY t4 index NULL f1 5 NULL 2 Using index
|
|
SELECT *
|
|
FROM t1, t2
|
|
WHERE t2.f2 = (SELECT f2 FROM t3
|
|
WHERE EXISTS (SELECT DISTINCT f1 FROM t4) LIMIT 1)
|
|
AND t2.f2 = t1.f1;
|
|
f1 f2 f1 f2
|
|
drop table t1,t2,t3,t4;
|
|
#
|
|
# LP BUG#611690 Crash in select_describe() with nested subqueries
|
|
#
|
|
CREATE TABLE t1 (
|
|
col_int_key int(11) DEFAULT NULL,
|
|
col_varchar_key varchar(1) DEFAULT NULL,
|
|
col_varchar_nokey varchar(1) DEFAULT NULL,
|
|
KEY col_int_key (col_int_key),
|
|
KEY col_varchar_key (col_varchar_key,col_int_key)
|
|
) ENGINE=MyISAM DEFAULT CHARSET=latin1;
|
|
INSERT INTO t1 VALUES (8,'v','v');
|
|
INSERT INTO t1 VALUES (9,'r','r');
|
|
CREATE TABLE t2 (
|
|
col_int_key int(11) DEFAULT NULL,
|
|
col_varchar_key varchar(1) DEFAULT NULL,
|
|
col_varchar_nokey varchar(1) DEFAULT NULL,
|
|
KEY col_int_key (col_int_key),
|
|
KEY col_varchar_key (col_varchar_key,col_int_key)
|
|
) ENGINE=MyISAM DEFAULT CHARSET=latin1;
|
|
INSERT INTO t2 VALUES (2,'w','w');
|
|
INSERT INTO t2 VALUES (9,'m','m');
|
|
set @old_optimizer_switch = @@optimizer_switch;
|
|
set @@optimizer_switch='subquery_cache=off,materialization=on,in_to_exists=off,semijoin=off';
|
|
EXPLAIN
|
|
SELECT col_int_key
|
|
FROM t2
|
|
WHERE (SELECT SUBQUERY2_t1.col_int_key
|
|
FROM t1 SUBQUERY2_t1 STRAIGHT_JOIN t1 SUBQUERY2_t2
|
|
ON SUBQUERY2_t2.col_varchar_key
|
|
WHERE SUBQUERY2_t2.col_varchar_nokey IN
|
|
(SELECT col_varchar_nokey FROM t1 GROUP BY col_varchar_nokey));
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t2 index NULL col_int_key 5 NULL 2 Using index
|
|
2 SUBQUERY SUBQUERY2_t1 index NULL col_int_key 5 NULL 2 Using index
|
|
2 SUBQUERY SUBQUERY2_t2 ALL col_varchar_key NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join)
|
|
3 MATERIALIZED t1 ALL NULL NULL NULL NULL 2
|
|
Warnings:
|
|
Note 1105 Cannot use key `col_varchar_key` part[0] for lookup: `test`.`t1`.`col_varchar_key` of type `varchar` < "0" of type `bigint`
|
|
SELECT col_int_key
|
|
FROM t2
|
|
WHERE (SELECT SUBQUERY2_t1.col_int_key
|
|
FROM t1 SUBQUERY2_t1 STRAIGHT_JOIN t1 SUBQUERY2_t2
|
|
ON SUBQUERY2_t2.col_varchar_key
|
|
WHERE SUBQUERY2_t2.col_varchar_nokey IN
|
|
(SELECT col_varchar_nokey FROM t1 GROUP BY col_varchar_nokey));
|
|
col_int_key
|
|
Warnings:
|
|
Warning 1292 Truncated incorrect DECIMAL value: 'v'
|
|
Warning 1292 Truncated incorrect DECIMAL value: 'r'
|
|
set @@optimizer_switch='subquery_cache=off,materialization=off,in_to_exists=on,semijoin=off';
|
|
EXPLAIN
|
|
SELECT col_int_key
|
|
FROM t2
|
|
WHERE (SELECT SUBQUERY2_t1.col_int_key
|
|
FROM t1 SUBQUERY2_t1 STRAIGHT_JOIN t1 SUBQUERY2_t2
|
|
ON SUBQUERY2_t2.col_varchar_key
|
|
WHERE SUBQUERY2_t2.col_varchar_nokey IN
|
|
(SELECT col_varchar_nokey FROM t1 GROUP BY col_varchar_nokey));
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t2 index NULL col_int_key 5 NULL 2 Using index
|
|
2 SUBQUERY SUBQUERY2_t1 index NULL col_int_key 5 NULL 2 Using index
|
|
2 SUBQUERY SUBQUERY2_t2 ALL col_varchar_key NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join)
|
|
3 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 Using where
|
|
Warnings:
|
|
Note 1105 Cannot use key `col_varchar_key` part[0] for lookup: `test`.`t1`.`col_varchar_key` of type `varchar` < "0" of type `bigint`
|
|
SELECT col_int_key
|
|
FROM t2
|
|
WHERE (SELECT SUBQUERY2_t1.col_int_key
|
|
FROM t1 SUBQUERY2_t1 STRAIGHT_JOIN t1 SUBQUERY2_t2
|
|
ON SUBQUERY2_t2.col_varchar_key
|
|
WHERE SUBQUERY2_t2.col_varchar_nokey IN
|
|
(SELECT col_varchar_nokey FROM t1 GROUP BY col_varchar_nokey));
|
|
col_int_key
|
|
Warnings:
|
|
Warning 1292 Truncated incorrect DECIMAL value: 'v'
|
|
Warning 1292 Truncated incorrect DECIMAL value: 'r'
|
|
drop table t1, t2;
|
|
set @@optimizer_switch = @old_optimizer_switch;
|
|
#
|
|
# LP BUG#612543 Crash in Item_field::used_tables() with view + subquery + prepared statements
|
|
#
|
|
CREATE TABLE t1 ( f1 int(11), f2 varchar(1));
|
|
CREATE TABLE t2 ( f3 varchar(1));
|
|
insert into t1 values (2,'x'), (5,'y');
|
|
insert into t2 values ('x'), ('z');
|
|
CREATE VIEW v2 AS SELECT * FROM t2;
|
|
set @old_optimizer_switch = @@optimizer_switch;
|
|
set @@optimizer_switch='materialization=on,in_to_exists=off,semijoin=off,subquery_cache=off';
|
|
EXPLAIN SELECT * FROM t1 JOIN v2 ON t1.f2 > 'a' WHERE v2.f3 IN ( SELECT f2 FROM t1 );
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where
|
|
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join)
|
|
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 2
|
|
PREPARE st1 FROM "SELECT * FROM t1 JOIN v2 ON t1.f2 > 'a' WHERE v2.f3 IN ( SELECT f2 FROM t1 )";
|
|
EXECUTE st1;
|
|
f1 f2 f3
|
|
2 x x
|
|
5 y x
|
|
EXECUTE st1;
|
|
f1 f2 f3
|
|
2 x x
|
|
5 y x
|
|
set @@optimizer_switch='materialization=off,in_to_exists=on,semijoin=off,subquery_cache=off';
|
|
EXPLAIN SELECT * FROM t1 JOIN v2 ON t1.f2 > 'a' WHERE v2.f3 IN ( SELECT f2 FROM t1 );
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where
|
|
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join)
|
|
2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 Using where
|
|
PREPARE st2 FROM "SELECT * FROM t1 JOIN v2 ON t1.f2 > 'a' WHERE v2.f3 IN ( SELECT f2 FROM t1 )";
|
|
EXECUTE st2;
|
|
f1 f2 f3
|
|
2 x x
|
|
5 y x
|
|
EXECUTE st2;
|
|
f1 f2 f3
|
|
2 x x
|
|
5 y x
|
|
set @@optimizer_switch='materialization=on,in_to_exists=on,semijoin=off,subquery_cache=off';
|
|
EXPLAIN SELECT * FROM t1 JOIN v2 ON t1.f2 > 'a' WHERE v2.f3 IN ( SELECT f2 FROM t1 );
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where
|
|
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join)
|
|
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 2
|
|
PREPARE st3 FROM "SELECT * FROM t1 JOIN v2 ON t1.f2 > 'a' WHERE v2.f3 IN ( SELECT f2 FROM t1 )";
|
|
EXECUTE st3;
|
|
f1 f2 f3
|
|
2 x x
|
|
5 y x
|
|
EXECUTE st3;
|
|
f1 f2 f3
|
|
2 x x
|
|
5 y x
|
|
set @@optimizer_switch = @old_optimizer_switch;
|
|
drop table t1, t2;
|
|
drop view v2;
|
|
#
|
|
# LP BUG#611396 RQG: crash in Item_field::register_field_in_read_map with semijoin=off
|
|
# and prepared statements and materialization
|
|
CREATE TABLE t1 ( f1 int(11), f2 int(11)) ;
|
|
CREATE TABLE t2 ( f1 int(11), f4 varchar(1), PRIMARY KEY (f1)) ;
|
|
INSERT INTO t2 VALUES ('23','j'),('24','e');
|
|
CREATE TABLE t3 ( f1 int(11), f4 varchar(1)) ;
|
|
INSERT INTO t3 VALUES ('8','j');
|
|
set @old_optimizer_switch = @@optimizer_switch;
|
|
set @@optimizer_switch='materialization=on,in_to_exists=off,semijoin=off';
|
|
EXPLAIN
|
|
SELECT t2.f1, (SELECT f2 FROM t1 WHERE (7) IN (SELECT f1 FROM t1))
|
|
FROM t2 JOIN t3 ON t3.f4 = t2.f4
|
|
WHERE t3.f1 = 8
|
|
GROUP BY 1, 2;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t3 system NULL NULL NULL NULL 1
|
|
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where; Using filesort
|
|
2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE
|
|
3 MATERIALIZED NULL NULL NULL NULL NULL NULL NULL no matching row in const table
|
|
PREPARE st1 FROM "
|
|
SELECT t2.f1, (SELECT f2 FROM t1 WHERE (7) IN (SELECT f1 FROM t1))
|
|
FROM t2 JOIN t3 ON t3.f4 = t2.f4
|
|
WHERE t3.f1 = 8
|
|
GROUP BY 1, 2";
|
|
EXECUTE st1;
|
|
f1 (SELECT f2 FROM t1 WHERE (7) IN (SELECT f1 FROM t1))
|
|
23 NULL
|
|
EXECUTE st1;
|
|
f1 (SELECT f2 FROM t1 WHERE (7) IN (SELECT f1 FROM t1))
|
|
23 NULL
|
|
set @@optimizer_switch = @old_optimizer_switch;
|
|
drop table t1, t2, t3;
|
|
#
|
|
# LP BUG#611382 RQG: Query returns extra rows when executed with materialization=on
|
|
#
|
|
CREATE TABLE t1 ( f4 varchar(1)) ENGINE=MyISAM;
|
|
INSERT INTO t1 VALUES (NULL);
|
|
CREATE TABLE t2 ( f2 date, f3 varchar(1), f4 varchar(1)) ;
|
|
INSERT INTO t2 VALUES ('2005-05-03','c','c'),('1900-01-01','d','d');
|
|
CREATE TABLE t3 ( f3 varchar(1)) ;
|
|
INSERT INTO t3 VALUES ('c');
|
|
set @old_optimizer_switch = @@optimizer_switch;
|
|
set @@optimizer_switch = 'materialization=on,in_to_exists=off,semijoin=off';
|
|
EXPLAIN SELECT t1.f4
|
|
FROM t1 JOIN ( t2 JOIN t3 ON t3.f3 = t2.f4 ) ON t3.f3 = t2.f3
|
|
WHERE t1.f4 IN ( SELECT f4 FROM t2 ) ;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 system NULL NULL NULL NULL 1
|
|
1 PRIMARY t3 system NULL NULL NULL NULL 1
|
|
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where
|
|
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2
|
|
SELECT t1.f4
|
|
FROM t1 JOIN ( t2 JOIN t3 ON t3.f3 = t2.f4 ) ON t3.f3 = t2.f3
|
|
WHERE t1.f4 IN ( SELECT f4 FROM t2 ) ;
|
|
f4
|
|
set @@optimizer_switch = 'materialization=off,in_to_exists=on,semijoin=off';
|
|
EXPLAIN SELECT t1.f4
|
|
FROM t1 JOIN ( t2 JOIN t3 ON t3.f3 = t2.f4 ) ON t3.f3 = t2.f3
|
|
WHERE t1.f4 IN ( SELECT f4 FROM t2 ) ;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 system NULL NULL NULL NULL 1
|
|
1 PRIMARY t3 system NULL NULL NULL NULL 1
|
|
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where
|
|
2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 2 Using where
|
|
SELECT t1.f4
|
|
FROM t1 JOIN ( t2 JOIN t3 ON t3.f3 = t2.f4 ) ON t3.f3 = t2.f3
|
|
WHERE t1.f4 IN ( SELECT f4 FROM t2 ) ;
|
|
f4
|
|
set @@optimizer_switch = @old_optimizer_switch;
|
|
drop table t1, t2, t3;
|
|
#
|
|
# LP BUG#782305: Wrong result/valgrind warning in Item_sum_hybrid::any_value()
|
|
#
|
|
CREATE TABLE t1 ( f1 int) ;
|
|
INSERT INTO t1 VALUES (2),(3);
|
|
CREATE TABLE t2 (f2 int) ;
|
|
INSERT INTO t2 VALUES (2),(3);
|
|
PREPARE st1 FROM '
|
|
SELECT * FROM t2
|
|
WHERE f2 <= SOME ( SELECT f1 FROM t1 );
|
|
';
|
|
EXECUTE st1;
|
|
f2
|
|
2
|
|
3
|
|
EXECUTE st1;
|
|
f2
|
|
2
|
|
3
|
|
PREPARE st2 FROM '
|
|
SELECT * FROM t2
|
|
WHERE f2 <= SOME (SELECT f1-2 FROM t1 UNION SELECT f1-1 FROM t1);
|
|
';
|
|
EXECUTE st2;
|
|
f2
|
|
2
|
|
EXECUTE st2;
|
|
f2
|
|
2
|
|
drop table t1, t2;
|
|
#
|
|
# LP BUG#825018: Crash in check_and_do_in_subquery_rewrites() with corrlated subquery in select list
|
|
#
|
|
CREATE TABLE t1 (a int, b int);
|
|
INSERT INTO t1 VALUES (10,1),(11,7);
|
|
CREATE TABLE t2 (a int);
|
|
INSERT INTO t2 VALUES (2),(3);
|
|
CREATE TABLE t3 (a int, b int);
|
|
INSERT INTO t3 VALUES (1,1);
|
|
CREATE PROCEDURE sp1 () LANGUAGE SQL
|
|
SELECT (SELECT t1.a
|
|
FROM t1
|
|
WHERE t1.b = t3.b
|
|
AND t1.b IN ( SELECT a FROM t2 )) sq
|
|
FROM t3
|
|
GROUP BY 1;
|
|
CALL sp1();
|
|
sq
|
|
NULL
|
|
CALL sp1();
|
|
sq
|
|
NULL
|
|
drop procedure sp1;
|
|
prepare st1 from "
|
|
SELECT (SELECT t1.a
|
|
FROM t1
|
|
WHERE t1.b = t3.b
|
|
AND t1.b IN ( SELECT a FROM t2 )) sq
|
|
FROM t3
|
|
GROUP BY 1";
|
|
execute st1;
|
|
sq
|
|
NULL
|
|
execute st1;
|
|
sq
|
|
NULL
|
|
deallocate prepare st1;
|
|
drop table t1, t2, t3;
|
|
set optimizer_switch=@subselect4_tmp;
|
|
#
|
|
# LP BUG#833702 Wrong result with nested IN and singlerow subqueries and equality propagation
|
|
#
|
|
CREATE TABLE t2 (c int , a int, b int);
|
|
INSERT INTO t2 VALUES (10,7,0);
|
|
CREATE TABLE t3 (a int, b int) ;
|
|
INSERT INTO t3 VALUES (5,0),(7,0);
|
|
CREATE TABLE t4 (a int);
|
|
INSERT INTO t4 VALUES (2),(8);
|
|
set @@optimizer_switch='semijoin=off,in_to_exists=on,materialization=off,subquery_cache=off';
|
|
SELECT * FROM t2
|
|
WHERE t2.b IN (SELECT b FROM t3 WHERE t3.a = t2.a AND a < SOME (SELECT * FROM t4))
|
|
OR ( t2.c > 242 );
|
|
c a b
|
|
10 7 0
|
|
EXPLAIN SELECT * FROM t2
|
|
WHERE t2.b IN (SELECT t3.b FROM t3 WHERE t3.a < ANY (SELECT t4.a FROM t4) and t3.a = 7);
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t2 system NULL NULL NULL NULL 1
|
|
2 DEPENDENT SUBQUERY t3 ALL NULL NULL NULL NULL 2 Using where
|
|
3 SUBQUERY t4 ALL NULL NULL NULL NULL 2
|
|
SELECT * FROM t2
|
|
WHERE t2.b IN (SELECT t3.b FROM t3 WHERE t3.a < ANY (SELECT t4.a FROM t4) and t3.a = 7);
|
|
c a b
|
|
10 7 0
|
|
drop table t2, t3, t4;
|
|
#
|
|
# BUG#934597: Assertion `! is_set()' failed in Diagnostics_area::set_ok_status(THD...
|
|
#
|
|
CREATE TABLE t1 ( a VARCHAR(1) );
|
|
INSERT INTO t1 VALUES ('u'),('k');
|
|
CREATE TABLE t2 AS
|
|
SELECT a AS field1 FROM t1
|
|
WHERE ( SELECT alias1.a
|
|
FROM t1 AS alias1
|
|
) IS NOT NULL;
|
|
ERROR 21000: Subquery returns more than 1 row
|
|
DROP TABLE t2;
|
|
ERROR 42S02: Unknown table 'test.t2'
|
|
DROP TABLE t1;
|
|
#
|
|
# LP BUG#1000649 EXPLAIN shows incorrectly a non-correlated constant IN subquery is correlated
|
|
#
|
|
create table ten (a int);
|
|
insert into ten values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
|
|
create table t1 (a int, b int, c int);
|
|
insert into t1 select a,a,a from ten;
|
|
create table five (a int, b int, c int);
|
|
insert into five select a,a,a from ten limit 5;
|
|
set @@optimizer_switch='semijoin=on,in_to_exists=on,materialization=off';
|
|
explain select * from t1 where 33 in (select b from five) or c > 11;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 ALL NULL NULL NULL NULL 10 Using where
|
|
2 SUBQUERY five ALL NULL NULL NULL NULL 5 Using where
|
|
drop table ten, t1, five;
|
|
#
|
|
# LP BUG#1008773 Wrong result (NULL instead of a value) with no matching rows, subquery in FROM and HAVING
|
|
#
|
|
CREATE TABLE t1 (a INT) ENGINE=MyISAM;
|
|
CREATE TABLE t2 (b INT) ENGINE=MyISAM;
|
|
INSERT INTO t2 VALUES (1);
|
|
EXPLAIN
|
|
SELECT MAX(a), ( SELECT 1 FROM t2 ) AS bb FROM t1;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 system NULL NULL NULL NULL 0 Const row not found
|
|
2 SUBQUERY t2 system NULL NULL NULL NULL 1
|
|
SELECT MAX(a), ( SELECT 1 FROM t2 ) AS bb FROM t1;
|
|
MAX(a) bb
|
|
NULL 1
|
|
EXPLAIN
|
|
SELECT MAX(a), 1 in ( SELECT b FROM t2 ) AS bb FROM t1;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 system NULL NULL NULL NULL 0 Const row not found
|
|
2 SUBQUERY t2 system NULL NULL NULL NULL 1
|
|
SELECT MAX(a), 1 in ( SELECT b FROM t2 ) AS bb FROM t1;
|
|
MAX(a) bb
|
|
NULL 1
|
|
EXPLAIN
|
|
SELECT MAX(a), 1 >= ALL ( SELECT b FROM t2 ) AS bb FROM t1;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 system NULL NULL NULL NULL 0 Const row not found
|
|
2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
|
|
SELECT MAX(a), 1 >= ALL ( SELECT b FROM t2 ) AS bb FROM t1;
|
|
MAX(a) bb
|
|
NULL 1
|
|
EXPLAIN
|
|
SELECT MAX(a), ( SELECT 1 FROM t2 where b = a) AS bb FROM t1;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 system NULL NULL NULL NULL 0 Const row not found
|
|
2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
|
|
SELECT MAX(a), ( SELECT 1 FROM t2 where b = a) AS bb FROM t1;
|
|
MAX(a) bb
|
|
NULL NULL
|
|
EXPLAIN
|
|
SELECT MAX(a), a in ( SELECT b FROM t2 ) AS bb FROM t1;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 system NULL NULL NULL NULL 0 Const row not found
|
|
2 DEPENDENT SUBQUERY t2 system NULL NULL NULL NULL 1
|
|
SELECT MAX(a), a in ( SELECT b FROM t2 ) AS bb FROM t1;
|
|
MAX(a) bb
|
|
NULL NULL
|
|
EXPLAIN
|
|
SELECT MAX(a), a >= ALL ( SELECT b FROM t2 ) AS bb FROM t1;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 system NULL NULL NULL NULL 0 Const row not found
|
|
2 DEPENDENT SUBQUERY t2 system NULL NULL NULL NULL 1
|
|
SELECT MAX(a), a >= ALL ( SELECT b FROM t2 ) AS bb FROM t1;
|
|
MAX(a) bb
|
|
NULL NULL
|
|
drop table t1, t2;
|
|
set optimizer_switch=@subselect4_tmp;
|
|
#
|
|
# MDEV-3928 Assertion `example' failed in Item_cache::is_expensive_processor with a 2-level IN subquery
|
|
#
|
|
CREATE TABLE t1 (a1 INT, b1 TIME) ENGINE=MyISAM;
|
|
INSERT INTO t1 VALUES (4,'21:22:34'),(6,'10:50:38');
|
|
CREATE TABLE t2 (a2 INT, b2 TIME) ENGINE=MyISAM;
|
|
INSERT INTO t2 VALUES (8, '06:17:39');
|
|
CREATE TABLE t3 (a3 INT, b3 TIME) ENGINE=MyISAM;
|
|
INSERT INTO t3 VALUES (1,'00:00:01'),(7,'00:00:02');
|
|
EXPLAIN
|
|
SELECT * FROM t1 WHERE a1 IN (
|
|
SELECT a2 FROM t2 WHERE a2 IN (
|
|
SELECT a3 FROM t3 WHERE b2 = b1 AND b2 <= b1 ORDER BY b3
|
|
)
|
|
);
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t2 system NULL NULL NULL NULL 1
|
|
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where
|
|
1 PRIMARY t3 ALL NULL NULL NULL NULL 2 Using where; FirstMatch(t1); Using join buffer (flat, BNL join)
|
|
SELECT * FROM t1 WHERE a1 IN (
|
|
SELECT a2 FROM t2 WHERE a2 IN (
|
|
SELECT a3 FROM t3 WHERE b2 = b1 AND b2 <= b1 ORDER BY b3
|
|
)
|
|
);
|
|
a1 b1
|
|
drop table t1, t2, t3;
|
|
#
|
|
# MDEV-4056:Server crashes in Item_func_trig_cond::val_int
|
|
# with FROM and NOT IN subqueries, LEFT JOIN, derived_merge+in_to_exists
|
|
#
|
|
set @optimizer_switch_MDEV4056 = @@optimizer_switch;
|
|
SET optimizer_switch = 'derived_merge=on,in_to_exists=on';
|
|
CREATE TABLE t1 (a VARCHAR(1)) ENGINE=MyISAM;
|
|
INSERT INTO t1 VALUES ('x'),('d');
|
|
CREATE TABLE t2 (pk INT PRIMARY KEY, b INT, c VARCHAR(1)) ENGINE=MyISAM;
|
|
INSERT INTO t2 VALUES (1,2,'v'),(2,150,'v');
|
|
SELECT * FROM t1 LEFT JOIN (
|
|
SELECT * FROM t2 WHERE ( pk, pk ) NOT IN (
|
|
SELECT MIN(b), SUM(pk) FROM t1
|
|
)
|
|
) AS alias1 ON (a = c)
|
|
WHERE b IS NULL OR a < 'u';
|
|
a pk b c
|
|
x NULL NULL NULL
|
|
d NULL NULL NULL
|
|
drop table t1,t2;
|
|
set @@optimizer_switch = @optimizer_switch_MDEV4056;
|
|
#
|
|
# MDEV-5103: server crashed on singular Item_equal
|
|
#
|
|
CREATE TABLE t1 (
|
|
a enum('p','r') NOT NULL DEFAULT 'r',
|
|
b int NOT NULL DEFAULT '0',
|
|
c char(32) NOT NULL,
|
|
d varchar(255) NOT NULL,
|
|
PRIMARY KEY (a, b), UNIQUE KEY idx(a, c)
|
|
);
|
|
INSERT INTO t1 VALUES ('r', 1, 'ad18832202b199728921807033a8a515', '001_cbr643');
|
|
CREATE TABLE t2 (
|
|
a enum('p','r') NOT NULL DEFAULT 'r',
|
|
b int NOT NULL DEFAULT '0',
|
|
e datetime NOT NULL DEFAULT '0000-00-00 00:00:00',
|
|
PRIMARY KEY (a, b, e)
|
|
);
|
|
INSERT INTO t2 VALUES ('r', 1, '2013-10-05 14:25:30');
|
|
SELECT * FROM t1 AS t
|
|
WHERE a='r' AND (c,b) NOT IN (SELECT c,b FROM t2 WHERE (c,b)=(t.c,t.b));
|
|
a b c d
|
|
DROP TABLE t1, t2;
|
|
#
|
|
# MDEV-5468: assertion failure with a simplified condition in subselect
|
|
#
|
|
CREATE TABLE t1 (a int, b int) ENGINE=MyISAM;
|
|
INSERT INTO t1 VALUES (1,1);
|
|
CREATE TABLE t2 ( pk int PRIMARY KEY, c INT) ENGINE=MyISAM;
|
|
INSERT INTO t2 VALUES (1,4), (2,6);
|
|
SELECT ( SELECT MAX(b) FROM t1, t2 WHERE pk = a AND b < from_sq.c ) AS select_sq,
|
|
COUNT( DISTINCT from_sq.c )
|
|
FROM ( SELECT DISTINCT t2_1.* FROM t2 AS t2_1, t2 AS t2_2 ) AS from_sq
|
|
GROUP BY select_sq ;
|
|
select_sq COUNT( DISTINCT from_sq.c )
|
|
1 2
|
|
DROP TABLE t1,t2;
|
|
CREATE TABLE t1 (id int, a2 char(2), a3 char(3)) ENGINE=MyISAM;
|
|
INSERT INTO t1 VALUES (1,'BE','BEL');
|
|
CREATE TABLE t2 (id int, a2 char(2), a3 char(3)) ENGINE=MyISAM;
|
|
INSERT INTO t2 VALUES (1,'BE','BEL'), (2,'MX','MEX');
|
|
CREATE VIEW v2 AS SELECT DISTINCT * FROM t2;
|
|
SELECT * FROM t1 AS outer_t1, v2
|
|
WHERE v2.a3 = outer_t1.a3
|
|
AND EXISTS ( SELECT * FROM t1 WHERE a2 < v2.a2 AND id = outer_t1.id )
|
|
AND outer_t1.a3 < 'J'
|
|
ORDER BY v2.id;
|
|
id a2 a3 id a2 a3
|
|
DROP VIEW v2;
|
|
DROP TABLE t1,t2;
|
|
#
|
|
# MDEV-5686: degenerate disjunct in NOT IN subquery
|
|
#
|
|
CREATE TABLE t1 (a int, b int, c varchar(3)) ENGINE=MyISAM;
|
|
INSERT INTO t1 VALUES (1,1,'CAN'),(2,2,'AUS');
|
|
CREATE TABLE t2 (f int) ENGINE=MyISAM;
|
|
INSERT INTO t2 VALUES (3);
|
|
EXPLAIN EXTENDED
|
|
SELECT * FROM t2
|
|
WHERE f NOT IN (SELECT b FROM t1
|
|
WHERE 0 OR (c IN ('USA') OR c NOT IN ('USA')) AND a = b);
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|
1 PRIMARY t2 system NULL NULL NULL NULL 1 100.00
|
|
2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 100.00 Using where
|
|
Warnings:
|
|
Note 1003 /* select#1 */ select 3 AS `f` from dual where !<expr_cache><3>(<in_optimizer>(3,<exists>(/* select#2 */ select `test`.`t1`.`b` from `test`.`t1` where `test`.`t1`.`b` = `test`.`t1`.`a` and (`test`.`t1`.`c` = 'USA' or `test`.`t1`.`c` <> 'USA') and trigcond(<cache>(3) = `test`.`t1`.`b` or `test`.`t1`.`b` is null) having trigcond(`test`.`t1`.`b` is null))))
|
|
SELECT * FROM t2
|
|
WHERE f NOT IN (SELECT b FROM t1
|
|
WHERE 0 OR (c IN ('USA') OR c NOT IN ('USA')) AND a = b);
|
|
f
|
|
3
|
|
DROP TABLE t1,t2;
|
|
#
|
|
# MDEV-3899 Valgrind warnings (blocks are definitely lost) in filesort on IN subquery with SUM and DISTINCT
|
|
#
|
|
CREATE TABLE t1 (a INT) ENGINE=MyISAM;
|
|
INSERT INTO t1 VALUES (1),(9);
|
|
CREATE TABLE t2 (b INT) ENGINE=MyISAM;
|
|
INSERT INTO t2 VALUES (8);
|
|
SELECT * FROM t1
|
|
WHERE (1, 1) IN (SELECT a, SUM(DISTINCT a) FROM t1, t2 GROUP BY a);
|
|
a
|
|
1
|
|
9
|
|
drop table t1, t2;
|
|
#
|
|
# MDEV-3902 Assertion `record_length == m_record_length' failed at Filesort_buffer::alloc_sort_buffer
|
|
#
|
|
CREATE TABLE t1 (a INT) ENGINE=MyISAM;
|
|
INSERT INTO t1 VALUES (1),(2);
|
|
CREATE TABLE t2 (pk INT PRIMARY KEY, b INT) ENGINE=MyISAM;
|
|
INSERT INTO t2 VALUES (1,1),(2,7);
|
|
CREATE TABLE t3 (c INT) ENGINE=MyISAM;
|
|
INSERT INTO t3 VALUES (8);
|
|
SELECT * FROM t1
|
|
WHERE (1, 5) IN (SELECT b, SUM(DISTINCT b) FROM t2, t3 GROUP BY b);
|
|
a
|
|
SELECT * FROM t2 AS alias1, t2 AS alias2
|
|
WHERE EXISTS ( SELECT 1 ) AND (alias2.pk = alias1.b )
|
|
ORDER BY alias1.b;
|
|
pk b pk b
|
|
1 1 1 1
|
|
drop table t1, t2, t3;
|
|
#
|
|
# MDEV-4144 simple subquery causes full scan instead of range scan
|
|
#
|
|
CREATE TABLE t1 (id int not null auto_increment, x int not null, primary key(id));
|
|
INSERT INTO t1 (x) VALUES (0),(0),(0);
|
|
EXPLAIN
|
|
SELECT x FROM t1 WHERE id > (SELECT MAX(id) - 1000 FROM t1) ORDER BY x LIMIT 1;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 range PRIMARY PRIMARY 4 NULL 3 Using where; Using filesort
|
|
2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL Select tables optimized away
|
|
SELECT x FROM t1 WHERE id > (SELECT MAX(id) - 1000 FROM t1) ORDER BY x LIMIT 1;
|
|
x
|
|
0
|
|
drop table t1;
|
|
#
|
|
# MDEV-7691: Assertion `outer_context || !*from_field || *from_field == not_found_field' ...
|
|
#
|
|
set optimizer_switch=default;
|
|
CREATE TABLE t1 (a INT) ENGINE=MyISAM;
|
|
INSERT INTO t1 VALUES (4),(6);
|
|
CREATE TABLE t2 (b INT) ENGINE=MyISAM;
|
|
INSERT INTO t2 VALUES (1),(8);
|
|
PREPARE stmt FROM "
|
|
SELECT * FROM t2
|
|
HAVING 0 IN (
|
|
SELECT a FROM t1
|
|
WHERE a IN (
|
|
SELECT a FROM t1
|
|
WHERE b = a
|
|
)
|
|
)
|
|
";
|
|
EXECUTE stmt;
|
|
b
|
|
EXECUTE stmt;
|
|
b
|
|
# Alternative test case, without HAVING
|
|
CREATE TABLE t3 (i INT) ENGINE=MyISAM;
|
|
INSERT INTO t3 VALUES (4),(6);
|
|
PREPARE stmt FROM "
|
|
SELECT * FROM t3 AS t10
|
|
WHERE EXISTS (
|
|
SELECT * FROM t3 AS t20 WHERE t10.i IN (
|
|
SELECT i FROM t3
|
|
)
|
|
)";
|
|
EXECUTE stmt;
|
|
i
|
|
4
|
|
6
|
|
EXECUTE stmt;
|
|
i
|
|
4
|
|
6
|
|
drop table t1, t2, t3;
|
|
#
|
|
# MDEV-11078: NULL NOT IN (non-empty subquery) should never return results
|
|
#
|
|
create table t1(a int,b int);
|
|
create table t2(a int,b int);
|
|
insert into t1 value (1,2);
|
|
select (NULL) in (select 1 from t1);
|
|
(NULL) in (select 1 from t1)
|
|
NULL
|
|
select (null) in (select 1 from t2);
|
|
(null) in (select 1 from t2)
|
|
0
|
|
select 1 in (select 1 from t1);
|
|
1 in (select 1 from t1)
|
|
1
|
|
select 1 in (select 1 from t2);
|
|
1 in (select 1 from t2)
|
|
0
|
|
select 1 from dual where null in (select 1 from t1);
|
|
1
|
|
select 1 from dual where null in (select 1 from t2);
|
|
1
|
|
select (null,null) in (select * from t1);
|
|
(null,null) in (select * from t1)
|
|
NULL
|
|
select (null,null) in (select * from t2);
|
|
(null,null) in (select * from t2)
|
|
0
|
|
select 1 from dual where null not in (select 1 from t1);
|
|
1
|
|
select 1 from dual where null not in (select 1 from t2);
|
|
1
|
|
1
|
|
drop table t1,t2;
|
|
#
|
|
# MDEV-6486: Assertion `!table || (!table->read_set || bitmap_is_set(table->read_set, field_index))'
|
|
# failed with SELECT SQ, TEXT field
|
|
#
|
|
CREATE TABLE t1 (a VARCHAR(8), KEY(a)) ENGINE=MyISAM;
|
|
INSERT INTO t1 VALUES ('foo'),( 'bar');
|
|
CREATE TABLE t2 (b VARCHAR(8), c TINYTEXT, KEY(b)) ENGINE=MyISAM;
|
|
INSERT INTO t2 VALUES ('baz','baz'),('qux', 'qux');
|
|
SELECT ( SELECT COUNT(*) FROM t1 WHERE a = c ) AS field, COUNT(DISTINCT c)
|
|
FROM t2 WHERE b <= 'quux' GROUP BY field;
|
|
field COUNT(DISTINCT c)
|
|
0 1
|
|
drop table t1,t2;
|
|
#
|
|
# MDEV-15555: select from DUAL where false yielding wrong result when in a IN
|
|
#
|
|
explain
|
|
SELECT 2 IN (SELECT 2 from DUAL WHERE 1 != 1);
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL No tables used
|
|
2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE
|
|
SELECT 2 IN (SELECT 2 from DUAL WHERE 1 != 1);
|
|
2 IN (SELECT 2 from DUAL WHERE 1 != 1)
|
|
0
|
|
SET optimizer_switch= @@global.optimizer_switch;
|
|
set @@tmp_table_size= @@global.tmp_table_size;
|
|
#
|
|
# MDEV-14515: Wrong results for tableless query with subquery in WHERE
|
|
# and implicit aggregation
|
|
#
|
|
create table t1 (i1 int, i2 int);
|
|
insert into t1 values (1314, 1084),(1330, 1084),(1401, 1084),(580, 1084);
|
|
create table t2 (cd int);
|
|
insert into t2 values
|
|
(1330), (1330), (1330), (1330), (1330), (1330), (1330), (1330),
|
|
(1330), (1330), (1330), (1330), (1330), (1330), (1330), (1330);
|
|
select max(10) from dual
|
|
where exists (select 1 from t2 join t1 on t1.i1 = t2.cd and t1.i2 = 345);
|
|
max(10)
|
|
NULL
|
|
insert into t2 select * from t2;
|
|
select max(10) from dual
|
|
where exists (select 1 from t2 join t1 on t1.i1 = t2.cd and t1.i2 = 345);
|
|
max(10)
|
|
NULL
|
|
DROP TABLE t1,t2;
|
|
#
|
|
# MDEV-10232 Scalar result of subquery changes after adding an outer select stmt
|
|
#
|
|
create table t1(c1 int, c2 int, primary key(c2));
|
|
insert into t1 values(2,1),(1,2);
|
|
select (select c1 from t1 group by c1,c2 order by c1 limit 1) as x;
|
|
x
|
|
1
|
|
(select c1 from t1 group by c1,c2 order by c1 limit 1);
|
|
c1
|
|
1
|
|
drop table t1;
|
|
#
|
|
# MDEV-22498: SIGSEGV in Bitmap<64u>::merge on SELECT
|
|
#
|
|
set @save_sql_select_limit= @@sql_select_limit;
|
|
SET sql_select_limit=0;
|
|
CREATE TABLE t1(b INT, c INT);
|
|
CREATE TABLE t2(a INT, b INT);
|
|
INSERT INTO t1 VALUES (1,1),(2,2),(3,3);
|
|
INSERT INTO t2 VALUES (1,1),(2,2),(3,3);
|
|
EXPLAIN EXTENDED SELECT sum(a), t2.a, t2.b FROM t2 HAVING t2.a IN (SELECT t2.b FROM t1);
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL NULL Zero limit
|
|
2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 3 100.00
|
|
Warnings:
|
|
Note 1276 Field or reference 'test.t2.b' of SELECT #2 was resolved in SELECT #1
|
|
Note 1276 Field or reference 'test.t2.b' of SELECT #2 was resolved in SELECT #1
|
|
Note 1003 /* select#1 */ select sum(`test`.`t2`.`a`) AS `sum(a)`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b` from `test`.`t2` having <in_optimizer>(`test`.`t2`.`a`,<exists>(/* select#2 */ select `test`.`t2`.`b` from `test`.`t1` where <cache>(`test`.`t2`.`a`) = `test`.`t2`.`b`))
|
|
SELECT sum(a), t2.a, t2.b FROM t2 HAVING t2.a IN (SELECT t2.b FROM t1);
|
|
sum(a) a b
|
|
SET @@sql_select_limit= @save_sql_select_limit;
|
|
EXPLAIN EXTENDED SELECT sum(a), t2.a, t2.b FROM t2 HAVING t2.a IN (SELECT t2.b FROM t1);
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|
1 PRIMARY t2 ALL NULL NULL NULL NULL 3 100.00
|
|
2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 3 100.00
|
|
Warnings:
|
|
Note 1276 Field or reference 'test.t2.b' of SELECT #2 was resolved in SELECT #1
|
|
Note 1276 Field or reference 'test.t2.b' of SELECT #2 was resolved in SELECT #1
|
|
Note 1003 /* select#1 */ select sum(`test`.`t2`.`a`) AS `sum(a)`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b` from `test`.`t2` having <expr_cache><`test`.`t2`.`a`,`test`.`t2`.`b`>(<in_optimizer>(`test`.`t2`.`a`,<exists>(/* select#2 */ select `test`.`t2`.`b` from `test`.`t1` where <cache>(`test`.`t2`.`a`) = `test`.`t2`.`b`)))
|
|
SELECT sum(a), t2.a, t2.b FROM t2 HAVING t2.a IN (SELECT t2.b FROM t1);
|
|
sum(a) a b
|
|
6 1 1
|
|
DROP TABLE t1,t2;
|
|
#
|
|
# MDEV-17606: Query returns wrong results (while using CHARACTER SET utf8)
|
|
#
|
|
CREATE TABLE t1(l1 varchar(10), i2 int) CHARSET=latin1;
|
|
INSERT INTO t1 VALUES ('e',2),('o',6),('x',4);
|
|
CREATE TABLE t2 (v1 varchar(10) CHARACTER SET utf8, KEY v1 (v1(3)));
|
|
INSERT INTO t2 VALUES ('k'),('rid'),('f'),('x');
|
|
EXPLAIN EXTENDED SELECT * FROM t1 where ( t1.l1 < ANY (SELECT MAX(t2.v1) FROM t2));
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where
|
|
2 SUBQUERY t2 ALL NULL NULL NULL NULL 4 100.00
|
|
Warnings:
|
|
Note 1003 /* select#1 */ select `test`.`t1`.`l1` AS `l1`,`test`.`t1`.`i2` AS `i2` from `test`.`t1` where <nop>(<in_optimizer>(`test`.`t1`.`l1`,<max>(/* select#2 */ select max(`test`.`t2`.`v1`) from `test`.`t2`) > convert(<cache>(`test`.`t1`.`l1`) using utf8mb3)))
|
|
SELECT * FROM t1 where ( t1.l1 < ANY (SELECT MAX(t2.v1) FROM t2));
|
|
l1 i2
|
|
e 2
|
|
o 6
|
|
DROP TABLE t1, t2;
|
|
#
|
|
# MDEV-19232: Floating point precision / value comparison problem
|
|
#
|
|
CREATE TABLE t1 (region varchar(60), area decimal(10,0), population decimal(11,0));
|
|
INSERT INTO t1 VALUES ('Central America and the Caribbean',91,11797);
|
|
INSERT INTO t1 VALUES ('Central America and the Caribbean',442,66422);
|
|
SET @save_optimizer_switch=@@optimizer_switch;
|
|
SET optimizer_switch='subquery_cache=on';
|
|
SELECT
|
|
population, area, population/area,
|
|
cast(population/area as DECIMAL(20,9)) FROM t1 LIMIT 1;
|
|
population area population/area cast(population/area as DECIMAL(20,9))
|
|
11797 91 129.6374 129.637362637
|
|
SELECT * FROM t1 A
|
|
WHERE population/area = (SELECT MAX(population/area) from t1 B where A.region = B.region);
|
|
region area population
|
|
Central America and the Caribbean 442 66422
|
|
SET optimizer_switch='subquery_cache=off';
|
|
SELECT * FROM t1 A
|
|
WHERE population/area = (SELECT MAX(population/area) from t1 B where A.region = B.region);
|
|
region area population
|
|
Central America and the Caribbean 442 66422
|
|
SET @@optimizer_switch= @save_optimizer_switch;
|
|
DROP TABLE t1;
|
|
#
|
|
# MDEV-9513: Assertion `join->group_list || !join->is_in_subquery()' failed in create_sort_index
|
|
#
|
|
CREATE TABLE t1 (a INT);
|
|
INSERT INTO t1 VALUES (1),(2);
|
|
CREATE TABLE t2 (a INT);
|
|
INSERT INTO t2 VALUES (2),(3);
|
|
EXPLAIN
|
|
SELECT t1.a FROM t1 WHERE t1.a IN ( SELECT A.a FROM t1 A UNION SELECT B.a FROM t2 B ORDER BY 1);
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where
|
|
2 DEPENDENT SUBQUERY A ALL NULL NULL NULL NULL 2 Using where
|
|
3 DEPENDENT UNION B ALL NULL NULL NULL NULL 2 Using where
|
|
NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL
|
|
SELECT t1.a FROM t1 WHERE t1.a IN ( SELECT A.a FROM t1 A UNION SELECT B.a FROM t2 B ORDER BY 1);
|
|
a
|
|
1
|
|
2
|
|
EXPLAIN
|
|
SELECT t1.a FROM t1 WHERE EXISTS (SELECT A.a FROM t1 A UNION SELECT B.a FROM t2 B ORDER BY 1);
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 ALL NULL NULL NULL NULL 2
|
|
2 SUBQUERY A ALL NULL NULL NULL NULL 2
|
|
3 UNION B ALL NULL NULL NULL NULL 2
|
|
NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL
|
|
SELECT t1.a FROM t1 WHERE EXISTS (SELECT A.a FROM t1 A UNION SELECT B.a FROM t2 B ORDER BY 1);
|
|
a
|
|
1
|
|
2
|
|
EXPLAIN
|
|
SELECT t1.a FROM t1 WHERE t1.a IN ( SELECT A.a FROM t1 A UNION ALL SELECT B.a FROM t2 B ORDER BY 1);
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where
|
|
2 DEPENDENT SUBQUERY A ALL NULL NULL NULL NULL 2 Using where
|
|
3 DEPENDENT UNION B ALL NULL NULL NULL NULL 2 Using where
|
|
SELECT t1.a FROM t1 WHERE t1.a IN ( SELECT A.a FROM t1 A UNION ALL SELECT B.a FROM t2 B ORDER BY 1);
|
|
a
|
|
1
|
|
2
|
|
DROP TABLE t1,t2;
|
|
# end of 10.1 tests
|
|
#
|
|
# MDEV-22852: SIGSEGV in sortlength (optimized builds)
|
|
#
|
|
SET @save_optimizer_switch=@@optimizer_switch;
|
|
SET optimizer_switch='subquery_cache=off';
|
|
CREATE TABLE t1 (a INT,b INT);
|
|
INSERT INTO t1 VALUES (0,0),(0,0);
|
|
SELECT (SELECT DISTINCT t1i.b FROM t1 t1i GROUP BY t1i.a ORDER BY MAX(t1o.b)) as exp FROM t1 AS t1o;
|
|
exp
|
|
0
|
|
SET @@optimizer_switch= @save_optimizer_switch;
|
|
DROP TABLE t1;
|
|
#
|
|
# MDEV-17066: Bytes lost or Assertion `status_var.local_memory_used == 0 after DELETE
|
|
# with subquery with ROLLUP
|
|
#
|
|
CREATE TABLE t1 (i INT DEFAULT 0, c VARCHAR(2048));
|
|
INSERT INTO t1 SELECT 0, seq FROM seq_1_to_6000;
|
|
CREATE TABLE t2 (f VARCHAR(2048) DEFAULT '');
|
|
INSERT INTO t2 VALUES ('1'),('bar');
|
|
EXPLAIN
|
|
SELECT * FROM t2 WHERE f IN ( SELECT MAX(c) FROM t1 GROUP BY c WITH ROLLUP);
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where
|
|
2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 6000 Using filesort
|
|
SELECT * FROM t2 WHERE f IN ( SELECT MAX(c) FROM t1 GROUP BY c WITH ROLLUP);
|
|
f
|
|
1
|
|
SELECT * FROM t2;
|
|
f
|
|
1
|
|
bar
|
|
DELETE FROM t2 WHERE f IN ( SELECT MAX(c) FROM t1 GROUP BY c WITH ROLLUP );
|
|
SELECT * FROM t2;
|
|
f
|
|
bar
|
|
DROP TABLE t1, t2;
|
|
#
|
|
# MDEV-23449: alias do not exist and a query do not report an error
|
|
#
|
|
CREATE TABLE t1(a INT, b INT);
|
|
INSERT INTO t1 VALUES (1,1), (2,2), (3,3), (4,4), (5,5);
|
|
SELECT a, b FROM t1 WHERE a IN (SELECT A.a FROM t1 A GROUP BY s.id);
|
|
ERROR 42S22: Unknown column 's.id' in 'group statement'
|
|
DROP TABLE t1;
|
|
#
|
|
# MDEV-24519: Server crashes in Charset::set_charset upon SELECT
|
|
#
|
|
CREATE TABLE t1 (a VARBINARY(8));
|
|
INSERT INTO t1 VALUES ('foo'),('bar');
|
|
CREATE TABLE t2 (b VARBINARY(8));
|
|
EXPLAIN
|
|
SELECT a FROM t1 WHERE (a, a) IN (SELECT 'qux', 'qux') AND a = (SELECT MIN(b) FROM t2);
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE
|
|
3 SUBQUERY NULL NULL NULL NULL NULL NULL NULL no matching row in const table
|
|
2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL No tables used
|
|
SELECT a FROM t1 WHERE (a, a) IN (SELECT 'qux', 'qux') AND a = (SELECT MIN(b) FROM t2);
|
|
a
|
|
DROP TABLE t1,t2;
|
|
CREATE TABLE t1 (a INT);
|
|
INSERT INTO t1 VALUES (1),(2);
|
|
CREATE TABLE t2 (b VARBINARY(8));
|
|
EXPLAIN
|
|
SELECT a FROM t1 WHERE (a, a) IN (SELECT 1, 2) AND a = (SELECT MIN(b) FROM t2);
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where
|
|
3 SUBQUERY NULL NULL NULL NULL NULL NULL NULL no matching row in const table
|
|
2 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL No tables used
|
|
SELECT a FROM t1 WHERE (a, a) IN (SELECT 1, 2) AND a = (SELECT MIN(b) FROM t2);
|
|
a
|
|
DROP TABLE t1,t2;
|
|
#
|
|
# MDEV-22462: Item_in_subselect::create_single_in_to_exists_cond(JOIN *, Item **, Item **): Assertion `false' failed.
|
|
#
|
|
select 1 from dual where 1 in (select 5 from dual where 1);
|
|
1
|
|
create table t1 (a int);
|
|
insert into t1 values (1),(2),(3);
|
|
update t1 set a = 2 where a in (select a from dual where a = a);
|
|
drop table t1;
|
|
#
|
|
# MDEV-18335: Assertion `!error || error == 137' failed in subselect_rowid_merge_engine::init
|
|
#
|
|
CREATE TABLE t1 (i1 int,v1 varchar(1),KEY (v1,i1)) CHARSET=latin1;
|
|
INSERT INTO t1 VALUES
|
|
(9,'y'),(4,'q'),(0,null),(0,'p'),(null,'j');
|
|
CREATE TABLE t2 (pk int);
|
|
INSERT INTO t2 VALUES (1),(2);
|
|
CREATE TABLE t3 (v2 varchar(1)) CHARSET=latin1;
|
|
INSERT INTO t3 VALUES
|
|
('p'),('j'),('y'),('q');
|
|
CREATE TABLE t4 (v2 varchar(1)) CHARSET=latin1;
|
|
INSERT INTO t4 VALUES
|
|
('a'),('a'),('b'),('b'),('c'),('c'),
|
|
('d'),('d'),('e'),('e'),('f'),('f'),
|
|
('g'),('g'),('h'),('h'),('i'),('i'),
|
|
('j'),('j'),('k'),('k'),('l'),('l'),
|
|
('m'),('m'),('n'),('n'),('o'),('o'),
|
|
('p'),('p'),('q'),('q'),('r'),('r'),
|
|
('s'),('s'),('t'),('t'),('u'),('u'),('v'),('v'),
|
|
('w'),('w'),('x'),('x'), (NULL),(NULL);
|
|
SET @save_join_cache_level=@@join_cache_level;
|
|
SET join_cache_level=0;
|
|
explain select 1
|
|
from t2 join t1 on
|
|
('i','w') not in (select t1.v1,t4.v2 from t4,t1,t3 where t3.v2 = t1.v1) LIMIT ROWS EXAMINED 10;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t2 ALL NULL NULL NULL NULL 2
|
|
1 PRIMARY t1 index NULL v1 9 NULL 5 Using index
|
|
2 MATERIALIZED t3 ALL NULL NULL NULL NULL 4 Using where
|
|
2 MATERIALIZED t1 ref v1 v1 4 test.t3.v2 1 Using index
|
|
2 MATERIALIZED t4 ALL NULL NULL NULL NULL 50
|
|
select 1
|
|
from t2 join t1 on
|
|
('i','w') not in (select t1.v1,t4.v2 from t4,t1,t3 where t3.v2 = t1.v1) LIMIT ROWS EXAMINED 10;
|
|
1
|
|
Warnings:
|
|
Warning 1931 Query execution was interrupted. The query exceeded LIMIT ROWS EXAMINED 10. The query result may be incomplete
|
|
SET join_cache_level= @save_join_cache_level;
|
|
DROP TABLE t1,t2,t3,t4;
|
|
#
|
|
# MDEV-21265: IN predicate conversion to IN subquery should be allowed for a broader set of datatype comparison
|
|
#
|
|
CREATE TABLE t1(a VARCHAR(50) collate utf8_general_ci, b INT);
|
|
INSERT INTO t1 VALUES ('abc',1), ('def', 2), ('ghi', 3), ('jkl', 4), ('mno', 5);
|
|
CREATE TABLE t2(a VARCHAR(50) collate utf8mb4_general_ci, b INT);
|
|
INSERT INTO t2 VALUES ('abc',1), ('def', 2), ('ghi', 3), ('jkl', 4), ('mno', 5);
|
|
set @save_in_predicate_conversion_threshold= @@in_predicate_conversion_threshold;
|
|
set in_predicate_conversion_threshold=2;
|
|
set names 'utf8mb4';
|
|
#
|
|
# IN predicate to IN subquery is not allowed as materialization is not allowed
|
|
# The character set on the inner side is not equal to or a proper subset of the outer side
|
|
#
|
|
EXPLAIN
|
|
SELECT * FROM t1 WHERE (t1.a,t1.b) IN (('abx',1),('def',2), ('abc', 3));
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 SIMPLE t1 ALL NULL NULL NULL NULL 5 Using where
|
|
set names utf8 collate utf8_general_ci;
|
|
#
|
|
# IN predicate to IN subquery is performed as materialization is llowed
|
|
# The character set on the inner side is a proper subset of the outer side
|
|
#
|
|
# this test in 10.5 has only 2 rows in the IN predicate
|
|
EXPLAIN
|
|
SELECT * FROM t2 WHERE (t2.a,t2.b) IN (('abc',1), ('def', 2));
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t2 ALL NULL NULL NULL NULL 5 Using where
|
|
1 PRIMARY <derived3> ref key1,distinct_key key1 4 test.t2.b 1 Using where; FirstMatch(t2)
|
|
3 DERIVED NULL NULL NULL NULL NULL NULL NULL No tables used
|
|
set names default;
|
|
set @@in_predicate_conversion_threshold= @save_in_predicate_conversion_threshold;
|
|
DROP TABLE t1,t2;
|
|
#
|
|
# MDEV-24925: Server crashes in Item_subselect::init_expr_cache_tracker
|
|
#
|
|
CREATE TABLE t1 (id INT PRIMARY KEY);
|
|
INSERT INTO t1 VALUES (1),(2);
|
|
SELECT
|
|
1 IN (
|
|
SELECT
|
|
(SELECT COUNT(id)
|
|
FROM t1
|
|
WHERE t1_outer.id <> id
|
|
) AS f
|
|
FROM
|
|
t1 AS t1_outer
|
|
GROUP BY f
|
|
) as exp;
|
|
exp
|
|
1
|
|
SELECT
|
|
1 IN (
|
|
SELECT
|
|
(SELECT COUNT(id)
|
|
FROM t1
|
|
WHERE t1_outer.id <> id
|
|
) AS f
|
|
FROM
|
|
t1 AS t1_outer
|
|
GROUP BY 1
|
|
) as exp;
|
|
exp
|
|
1
|
|
DROP TABLE t1;
|
|
#
|
|
# MDEV-24898: Server crashes in st_select_lex::next_select / Item_subselect::is_expensive
|
|
# (Testcase)
|
|
#
|
|
CREATE TABLE t1 (a INT);
|
|
INSERT INTO t1 VALUES (1),(2);
|
|
CREATE TABLE t2 (b INT);
|
|
INSERT INTO t2 VALUES (3),(4);
|
|
SELECT 1 IN (SELECT (SELECT a FROM t1) AS x FROM t2 GROUP BY x);
|
|
ERROR 21000: Subquery returns more than 1 row
|
|
drop table t1,t2;
|
|
#
|
|
# MDEV-25629: Crash in get_sort_by_table() in subquery with order by having outer ref
|
|
#
|
|
CREATE TABLE t1 (i1 int);
|
|
insert into t1 values (1),(2);
|
|
SELECT 1
|
|
FROM (t1 JOIN t1 AS ref_t1 ON
|
|
(t1.i1 > (SELECT ref_t1.i1 AS c0 FROM t1 b ORDER BY -c0)));
|
|
ERROR 21000: Subquery returns more than 1 row
|
|
DROP TABLE t1;
|
|
#
|
|
# MDEV-22377: Subquery in an UPDATE query uses full scan instead of range
|
|
#
|
|
CREATE TABLE t1 (
|
|
key1 varchar(30) NOT NULL,
|
|
col1 int(11) NOT NULL,
|
|
filler char(100)
|
|
) CHARSET=latin1;
|
|
insert into t1 select seq, seq, seq from seq_1_to_100;
|
|
CREATE TABLE t10 (
|
|
key1 varchar(30) NOT NULL,
|
|
col1 int,
|
|
filler char(100),
|
|
PRIMARY KEY (key1)
|
|
) CHARSET=latin1;
|
|
insert into t10 select seq, seq, seq from seq_1_to_1000;
|
|
CREATE TABLE t11 (
|
|
key1 varchar(30) NOT NULL,
|
|
filler char(100),
|
|
PRIMARY KEY (key1)
|
|
) CHARSET=latin1;
|
|
insert into t11 select seq, seq from seq_1_to_1000;
|
|
set @tmp_os=@@optimizer_switch;
|
|
set optimizer_switch='semijoin=off,materialization=off';
|
|
# Must use range access (not full scan) for table tms:
|
|
explain select * from t1 hist
|
|
WHERE
|
|
key1 IN ('1','2','3','4','5','6','7','8','9','10') AND
|
|
hist.col1 NOT IN (SELECT tn.col1
|
|
FROM t10 tn JOIN t11 tms ON tms.key1 = tn.key1
|
|
WHERE tn.key1 IN ('1','2','3','4','5','6','7','8','9','10')
|
|
);
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY hist ALL NULL NULL NULL NULL 100 Using where
|
|
2 DEPENDENT SUBQUERY tn range PRIMARY PRIMARY 32 NULL 10 Using index condition; Using where
|
|
2 DEPENDENT SUBQUERY tms eq_ref PRIMARY PRIMARY 32 test.tn.key1 1 Using index
|
|
set optimizer_switch=@tmp_os;
|
|
drop table t1, t10, t11;
|
|
#
|
|
# MDEV-28268: Server crashes in Expression_cache_tracker::fetch_current_stats
|
|
#
|
|
CREATE TABLE t1 (a INT, b INT);
|
|
INSERT INTO t1 VALUES (1,2),(3,4);
|
|
ANALYZE FORMAT=JSON
|
|
SELECT DISTINCT
|
|
(SELECT MIN(a) FROM t1 WHERE b <= ANY (SELECT a FROM t1)) AS f
|
|
FROM t1;
|
|
ANALYZE
|
|
{
|
|
"query_optimization": {
|
|
"r_total_time_ms": "REPLACED"
|
|
},
|
|
"query_block": {
|
|
"select_id": 1,
|
|
"cost": "REPLACED",
|
|
"r_loops": 1,
|
|
"r_total_time_ms": "REPLACED",
|
|
"duplicate_removal": {
|
|
"temporary_table": {
|
|
"nested_loop": [
|
|
{
|
|
"table": {
|
|
"table_name": "t1",
|
|
"access_type": "ALL",
|
|
"loops": 1,
|
|
"r_loops": 1,
|
|
"rows": 2,
|
|
"r_rows": 2,
|
|
"cost": "REPLACED",
|
|
"r_table_time_ms": "REPLACED",
|
|
"r_other_time_ms": "REPLACED",
|
|
"r_engine_stats": REPLACED,
|
|
"filtered": 100,
|
|
"r_total_filtered": 100,
|
|
"r_filtered": 100
|
|
}
|
|
}
|
|
],
|
|
"subqueries": [
|
|
{
|
|
"expression_cache": {
|
|
"state": "disabled",
|
|
"r_loops": 0,
|
|
"query_block": {
|
|
"select_id": 2,
|
|
"cost": "REPLACED",
|
|
"r_loops": 1,
|
|
"r_total_time_ms": "REPLACED",
|
|
"nested_loop": [
|
|
{
|
|
"table": {
|
|
"table_name": "t1",
|
|
"access_type": "ALL",
|
|
"loops": 1,
|
|
"r_loops": 1,
|
|
"rows": 2,
|
|
"r_rows": 2,
|
|
"cost": "REPLACED",
|
|
"r_table_time_ms": "REPLACED",
|
|
"r_other_time_ms": "REPLACED",
|
|
"r_engine_stats": REPLACED,
|
|
"filtered": 100,
|
|
"r_total_filtered": 50,
|
|
"attached_condition": "<nop>(<in_optimizer>(t1.b,(subquery#3) >= 4))",
|
|
"r_filtered": 50
|
|
}
|
|
}
|
|
],
|
|
"subqueries": [
|
|
{
|
|
"query_block": {
|
|
"select_id": 3,
|
|
"cost": "REPLACED",
|
|
"r_loops": 1,
|
|
"r_total_time_ms": "REPLACED",
|
|
"nested_loop": [
|
|
{
|
|
"table": {
|
|
"table_name": "t1",
|
|
"access_type": "ALL",
|
|
"loops": 1,
|
|
"r_loops": 1,
|
|
"rows": 2,
|
|
"r_rows": 2,
|
|
"cost": "REPLACED",
|
|
"r_table_time_ms": "REPLACED",
|
|
"r_other_time_ms": "REPLACED",
|
|
"r_engine_stats": REPLACED,
|
|
"filtered": 100,
|
|
"r_total_filtered": 100,
|
|
"r_filtered": 100
|
|
}
|
|
}
|
|
]
|
|
}
|
|
}
|
|
]
|
|
}
|
|
}
|
|
}
|
|
]
|
|
}
|
|
}
|
|
}
|
|
}
|
|
DROP TABLE t1;
|
|
# End of 10.2 tests
|
|
#
|
|
# MDEV-29139: Redundannt subquery in GROUP BY clause of ANY/ALL subquery
|
|
#
|
|
create table t1 (a int);
|
|
insert into t1 values (3), (1), (2);
|
|
create table t2 (b int not null);
|
|
insert into t2 values (4), (2);
|
|
create table t3 (c int);
|
|
insert into t3 values (7), (1);
|
|
explain extended select a from t1
|
|
where a >= any (select b from t2 group by (select c from t3 where c = 1));
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where
|
|
2 SUBQUERY t2 ALL NULL NULL NULL NULL 2 100.00
|
|
3 SUBQUERY t3 ALL NULL NULL NULL NULL 2 100.00 Using where
|
|
Warnings:
|
|
Note 1003 /* select#1 */ select `test`.`t1`.`a` AS `a` from `test`.`t1` where <nop>(<in_optimizer>(`test`.`t1`.`a`,<min>(/* select#2 */ select `test`.`t2`.`b` from `test`.`t2` group by (/* select#3 */ select `test`.`t3`.`c` from `test`.`t3` where `test`.`t3`.`c` = 1)) <= <cache>(`test`.`t1`.`a`)))
|
|
select a from t1
|
|
where a >= any (select b from t2 group by (select c from t3 where c = 1));
|
|
a
|
|
prepare stmt from "select a from t1
|
|
where a >= any (select b from t2 group by (select c from t3 where c = 1))";
|
|
execute stmt;
|
|
a
|
|
execute stmt;
|
|
a
|
|
deallocate prepare stmt;
|
|
explain extended select a from t1
|
|
where a <= all (select b from t2 group by (select c from t3 where c = 1));
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where
|
|
2 SUBQUERY t2 ALL NULL NULL NULL NULL 2 100.00
|
|
3 SUBQUERY t3 ALL NULL NULL NULL NULL 2 100.00 Using where
|
|
Warnings:
|
|
Note 1003 /* select#1 */ select `test`.`t1`.`a` AS `a` from `test`.`t1` where <not>(<in_optimizer>(`test`.`t1`.`a`,<min>(/* select#2 */ select `test`.`t2`.`b` from `test`.`t2` group by (/* select#3 */ select `test`.`t3`.`c` from `test`.`t3` where `test`.`t3`.`c` = 1)) < <cache>(`test`.`t1`.`a`)))
|
|
select a from t1
|
|
where a <= all (select b from t2 group by (select c from t3 where c = 1));
|
|
a
|
|
3
|
|
1
|
|
2
|
|
explain extended select a from t1
|
|
where a >= any (select b from t2 group by 1 + (select c from t3 where c = 1));
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where
|
|
2 SUBQUERY t2 ALL NULL NULL NULL NULL 2 100.00
|
|
3 SUBQUERY t3 ALL NULL NULL NULL NULL 2 100.00 Using where
|
|
Warnings:
|
|
Note 1003 /* select#1 */ select `test`.`t1`.`a` AS `a` from `test`.`t1` where <nop>(<in_optimizer>(`test`.`t1`.`a`,<min>(/* select#2 */ select `test`.`t2`.`b` from `test`.`t2` group by 1 + (/* select#3 */ select `test`.`t3`.`c` from `test`.`t3` where `test`.`t3`.`c` = 1)) <= <cache>(`test`.`t1`.`a`)))
|
|
select a from t1
|
|
where a >= any (select b from t2 group by 1 + (select c from t3 where c = 1));
|
|
a
|
|
drop table t1,t2,t3;
|
|
#
|
|
# MDEV-29139: Redundant IN/ALL/ANY predicand in GROUP BY clause of
|
|
# IN/ALL/ANY/EXISTS subquery
|
|
#
|
|
create table t1 (a int);
|
|
create table t2 (b int);
|
|
create table t3 (c int);
|
|
create table t4 (d int);
|
|
insert into t1 values (3), (1);
|
|
insert into t2 values (3), (2);
|
|
insert into t3 values (4), (2);
|
|
insert into t4 values (1), (7);
|
|
explain extended select b from t2
|
|
where exists (select c from t3
|
|
group by (select a from t1 where a = 1) in (select d from t4));
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 100.00
|
|
2 SUBQUERY t3 ALL NULL NULL NULL NULL 2 100.00
|
|
4 SUBQUERY t4 ALL NULL NULL NULL NULL 2 100.00 Using where
|
|
3 SUBQUERY t1 ALL NULL NULL NULL NULL 2 100.00 Using where
|
|
Warnings:
|
|
Note 1003 /* select#1 */ select `test`.`t2`.`b` AS `b` from `test`.`t2` where <in_optimizer>(1,exists(/* select#2 */ select `test`.`t3`.`c` from `test`.`t3` group by <in_optimizer>((/* select#3 */ select `test`.`t1`.`a` from `test`.`t1` where `test`.`t1`.`a` = 1),<exists>(/* select#4 */ select `test`.`t4`.`d` from `test`.`t4` where trigcond(<cache>((/* select#3 */ select `test`.`t1`.`a` from `test`.`t1` where `test`.`t1`.`a` = 1)) = `test`.`t4`.`d` or `test`.`t4`.`d` is null) having trigcond(`test`.`t4`.`d` is null))) limit 1))
|
|
select b from t2
|
|
where exists (select c from t3
|
|
group by (select a from t1 where a = 1) in (select d from t4));
|
|
b
|
|
3
|
|
2
|
|
prepare stmt from "select b from t2
|
|
where exists (select c from t3
|
|
group by (select a from t1 where a = 1) in (select d from t4))";
|
|
execute stmt;
|
|
b
|
|
3
|
|
2
|
|
execute stmt;
|
|
b
|
|
3
|
|
2
|
|
deallocate prepare stmt;
|
|
explain extended select b from t2
|
|
where exists (select c from t3
|
|
group by (select a from t1 where a = 1) >=
|
|
any (select d from t4));
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 100.00
|
|
2 SUBQUERY t3 ALL NULL NULL NULL NULL 2 100.00
|
|
4 SUBQUERY t4 ALL NULL NULL NULL NULL 2 100.00 Using where
|
|
3 SUBQUERY t1 ALL NULL NULL NULL NULL 2 100.00 Using where
|
|
Warnings:
|
|
Note 1003 /* select#1 */ select `test`.`t2`.`b` AS `b` from `test`.`t2` where <in_optimizer>(1,exists(/* select#2 */ select `test`.`t3`.`c` from `test`.`t3` group by <nop>(<expr_cache><(/* select#3 */ select `test`.`t1`.`a` from `test`.`t1` where `test`.`t1`.`a` = 1)>(<in_optimizer>((/* select#3 */ select `test`.`t1`.`a` from `test`.`t1` where `test`.`t1`.`a` = 1),<exists>(/* select#4 */ select `test`.`t4`.`d` from `test`.`t4` where trigcond(<cache>((/* select#3 */ select `test`.`t1`.`a` from `test`.`t1` where `test`.`t1`.`a` = 1)) >= `test`.`t4`.`d` or `test`.`t4`.`d` is null) having trigcond(`test`.`t4`.`d` is null))))) limit 1))
|
|
select b from t2
|
|
where exists (select c from t3
|
|
group by (select a from t1 where a = 1) >=
|
|
any (select d from t4));
|
|
b
|
|
3
|
|
2
|
|
explain extended select b from t2
|
|
where exists (select c from t3
|
|
group by (select a from t1 where a = 1) <
|
|
all (select d from t4));
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 100.00
|
|
2 SUBQUERY t3 ALL NULL NULL NULL NULL 2 100.00
|
|
4 SUBQUERY t4 ALL NULL NULL NULL NULL 2 100.00 Using where
|
|
3 SUBQUERY t1 ALL NULL NULL NULL NULL 2 100.00 Using where
|
|
Warnings:
|
|
Note 1003 /* select#1 */ select `test`.`t2`.`b` AS `b` from `test`.`t2` where <in_optimizer>(1,exists(/* select#2 */ select `test`.`t3`.`c` from `test`.`t3` group by <not>(<expr_cache><(/* select#3 */ select `test`.`t1`.`a` from `test`.`t1` where `test`.`t1`.`a` = 1)>(<in_optimizer>((/* select#3 */ select `test`.`t1`.`a` from `test`.`t1` where `test`.`t1`.`a` = 1),<exists>(/* select#4 */ select `test`.`t4`.`d` from `test`.`t4` where trigcond(<cache>((/* select#3 */ select `test`.`t1`.`a` from `test`.`t1` where `test`.`t1`.`a` = 1)) >= `test`.`t4`.`d` or `test`.`t4`.`d` is null) having trigcond(`test`.`t4`.`d` is null))))) limit 1))
|
|
select b from t2
|
|
where exists (select c from t3
|
|
group by (select a from t1 where a = 1) <
|
|
all (select d from t4));
|
|
b
|
|
3
|
|
2
|
|
explain extended select b from t2
|
|
where b in (select c from t3
|
|
group by (select a from t1 where a = 1) in (select d from t4));
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 100.00 Using where
|
|
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 test.t2.b 1 100.00
|
|
2 MATERIALIZED t3 ALL NULL NULL NULL NULL 2 100.00
|
|
4 SUBQUERY t4 ALL NULL NULL NULL NULL 2 100.00 Using where
|
|
3 SUBQUERY t1 ALL NULL NULL NULL NULL 2 100.00 Using where
|
|
Warnings:
|
|
Note 1003 /* select#1 */ select `test`.`t2`.`b` AS `b` from <materialize> (/* select#2 */ select `test`.`t3`.`c` from `test`.`t3` group by <in_optimizer>((/* select#3 */ select `test`.`t1`.`a` from `test`.`t1` where `test`.`t1`.`a` = 1),<exists>(/* select#4 */ select `test`.`t4`.`d` from `test`.`t4` where trigcond(<cache>((/* select#3 */ select `test`.`t1`.`a` from `test`.`t1` where `test`.`t1`.`a` = 1)) = `test`.`t4`.`d` or `test`.`t4`.`d` is null) having trigcond(`test`.`t4`.`d` is null)))) join `test`.`t2` where `<subquery2>`.`c` = `test`.`t2`.`b`
|
|
select b from t2
|
|
where b in (select c from t3
|
|
group by (select a from t1 where a = 1) in (select d from t4));
|
|
b
|
|
explain extended select b from t2
|
|
where b >= any (select c from t3
|
|
group by (select a from t1 where a = 1) in
|
|
(select d from t4));
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 100.00 Using where
|
|
2 SUBQUERY t3 ALL NULL NULL NULL NULL 2 100.00
|
|
4 SUBQUERY t4 ALL NULL NULL NULL NULL 2 100.00 Using where
|
|
3 SUBQUERY t1 ALL NULL NULL NULL NULL 2 100.00 Using where
|
|
Warnings:
|
|
Note 1003 /* select#1 */ select `test`.`t2`.`b` AS `b` from `test`.`t2` where <nop>(<in_optimizer>(`test`.`t2`.`b`,<min>(/* select#2 */ select `test`.`t3`.`c` from `test`.`t3` group by <in_optimizer>((/* select#3 */ select `test`.`t1`.`a` from `test`.`t1` where `test`.`t1`.`a` = 1),<exists>(/* select#4 */ select `test`.`t4`.`d` from `test`.`t4` where trigcond(<cache>((/* select#3 */ select `test`.`t1`.`a` from `test`.`t1` where `test`.`t1`.`a` = 1)) = `test`.`t4`.`d` or `test`.`t4`.`d` is null) having trigcond(`test`.`t4`.`d` is null)))) <= <cache>(`test`.`t2`.`b`)))
|
|
select b from t2
|
|
where b >= any (select c from t3
|
|
group by (select a from t1 where a = 1) in
|
|
(select d from t4));
|
|
b
|
|
explain extended select b from t2
|
|
where b <= all (select c from t3
|
|
group by (select a from t1 where a = 1) in
|
|
(select d from t4));
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 100.00 Using where
|
|
2 SUBQUERY t3 ALL NULL NULL NULL NULL 2 100.00
|
|
4 SUBQUERY t4 ALL NULL NULL NULL NULL 2 100.00 Using where
|
|
3 SUBQUERY t1 ALL NULL NULL NULL NULL 2 100.00 Using where
|
|
Warnings:
|
|
Note 1003 /* select#1 */ select `test`.`t2`.`b` AS `b` from `test`.`t2` where <not>(<in_optimizer>(`test`.`t2`.`b`,<min>(/* select#2 */ select `test`.`t3`.`c` from `test`.`t3` group by <in_optimizer>((/* select#3 */ select `test`.`t1`.`a` from `test`.`t1` where `test`.`t1`.`a` = 1),<exists>(/* select#4 */ select `test`.`t4`.`d` from `test`.`t4` where trigcond(<cache>((/* select#3 */ select `test`.`t1`.`a` from `test`.`t1` where `test`.`t1`.`a` = 1)) = `test`.`t4`.`d` or `test`.`t4`.`d` is null) having trigcond(`test`.`t4`.`d` is null)))) < <cache>(`test`.`t2`.`b`)))
|
|
select b from t2
|
|
where b <= all (select c from t3
|
|
group by (select a from t1 where a = 1) in
|
|
(select d from t4));
|
|
b
|
|
3
|
|
2
|
|
drop table t1,t2,t3,t4;
|
|
# End of 10.3 tests
|
|
#
|
|
# MDEV-19134: EXISTS() slower if ORDER BY is defined
|
|
#
|
|
create table t0 (a int);
|
|
insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
|
|
create table t1(a int, b int);
|
|
insert into t1 select
|
|
A.a + B.a*10, A.a + B.a*10 from t0 A, t0 B;
|
|
create table t2 as select * from t1;
|
|
# This will be converted to semi-join:
|
|
explain
|
|
select * from t1
|
|
where exists (select * from t2 where t2.a=t1.a order by t2.b);
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 ALL NULL NULL NULL NULL 100
|
|
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1
|
|
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 100
|
|
# query with a non-zero constant LIMIT is converted to semi-join, too:
|
|
explain
|
|
select * from t1
|
|
where exists (select * from t2 where t2.a=t1.a order by t2.b limit 2);
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 ALL NULL NULL NULL NULL 100
|
|
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1
|
|
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 100
|
|
# Zero LIMIT should prevent the conversion (but it is not visible atm
|
|
# due to MDEV-19429)
|
|
explain
|
|
select * from t1
|
|
where exists (select * from t2 where t2.a=t1.a order by t2.b limit 0);
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 ALL NULL NULL NULL NULL 100 Using where
|
|
2 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL Zero limit
|
|
# LIMIT+OFFSET prevents the conversion:
|
|
explain
|
|
select * from t1
|
|
where exists (select * from t2 where t2.a=t1.a order by t2.b limit 2,3);
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 ALL NULL NULL NULL NULL 100 Using where
|
|
2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 100 Using where; Using filesort
|
|
# This will be merged and converted into a semi-join:
|
|
explain
|
|
select * from t1 where t1.a in (select t2.a from t2 order by t2.b);
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 ALL NULL NULL NULL NULL 100
|
|
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1
|
|
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 100
|
|
drop table t0, t1, t2;
|
|
#
|
|
# MDEV-32320: Server crashes at TABLE::add_tmp_key
|
|
#
|
|
select
|
|
( ( 'x' , 1.000000 ) , 1 )
|
|
IN
|
|
(SELECT
|
|
'x' , 'x'
|
|
WHERE ( 'x' )
|
|
UNION
|
|
SELECT 1 , 'x'
|
|
HAVING 1 != 1
|
|
) as T;
|
|
ERROR 21000: Operand should contain 2 column(s)
|
|
SELECT
|
|
EXISTS (
|
|
WITH x ( x ) AS ( SELECT 1 )
|
|
SELECT NULL
|
|
WHERE ( 1 , 1 ) =
|
|
(SELECT
|
|
1 , ( ( x , 1.000000 ) , 1 )
|
|
IN
|
|
(SELECT 'x' , 'x' WHERE ( ( 'x' ) )
|
|
UNION
|
|
SELECT 1 , x HAVING 1 != 1
|
|
)
|
|
FROM x
|
|
)
|
|
);
|
|
ERROR 21000: Operand should contain 2 column(s)
|
|
#
|
|
# MDEV-29362: Constant subquery used as left part of IN subquery
|
|
#
|
|
CREATE TABLE t1 (a int) ENGINE=MyISAM;
|
|
INSERT INTO t1 VALUES (15), (1), (2);
|
|
CREATE TABLE t2 (b int) ENGINE=MyISAM;
|
|
INSERT INTO t2 VALUES (15), (1);
|
|
CREATE TABLE t3 (c int) ENGINE=MyISAM;
|
|
INSERT INTO t3 VALUES (15), (1);
|
|
SET optimizer_switch='condition_pushdown_from_having=off';
|
|
SELECT a FROM t1 GROUP BY a
|
|
HAVING a = ( (SELECT b FROM t2 where b=1) IN (SELECT c FROM t3) ) + 1;
|
|
a
|
|
2
|
|
SELECT a FROM t1 GROUP BY a
|
|
HAVING a IN ( (SELECT b FROM t2 where b=1) IN (SELECT c FROM t3) );
|
|
a
|
|
1
|
|
SET optimizer_switch='condition_pushdown_from_having=on';
|
|
SELECT a FROM t1 GROUP BY a
|
|
HAVING a = ( (SELECT b FROM t2 where b=1) IN (SELECT c FROM t3) ) + 1;
|
|
a
|
|
2
|
|
SELECT a FROM t1 GROUP BY a
|
|
HAVING a IN ( (SELECT b FROM t2 where b=1) IN (SELECT c FROM t3) );
|
|
a
|
|
1
|
|
EXPLAIN FORMAT=JSON SELECT a FROM t1 GROUP BY a
|
|
HAVING a = ( (SELECT b FROM t2 where b=1) IN (SELECT c FROM t3) ) + 1;
|
|
EXPLAIN
|
|
{
|
|
"query_block": {
|
|
"select_id": 1,
|
|
"cost": 0.012403489,
|
|
"nested_loop": [
|
|
{
|
|
"table": {
|
|
"table_name": "t1",
|
|
"access_type": "ALL",
|
|
"loops": 1,
|
|
"rows": 3,
|
|
"cost": 0.010504815,
|
|
"filtered": 100,
|
|
"attached_condition": "t1.a = <cache>((<in_optimizer>((subquery#2),<exists>(subquery#3))) + 1)"
|
|
}
|
|
}
|
|
],
|
|
"subqueries": [
|
|
{
|
|
"query_block": {
|
|
"select_id": 3,
|
|
"cost": 0.01034841,
|
|
"having_condition": "trigcond(t3.c is null)",
|
|
"nested_loop": [
|
|
{
|
|
"table": {
|
|
"table_name": "t3",
|
|
"access_type": "ALL",
|
|
"loops": 1,
|
|
"rows": 2,
|
|
"cost": 0.01034841,
|
|
"filtered": 100,
|
|
"attached_condition": "trigcond(1 = t3.c or t3.c is null)"
|
|
}
|
|
}
|
|
]
|
|
}
|
|
},
|
|
{
|
|
"query_block": {
|
|
"select_id": 2,
|
|
"cost": 0.01034841,
|
|
"nested_loop": [
|
|
{
|
|
"table": {
|
|
"table_name": "t2",
|
|
"access_type": "ALL",
|
|
"loops": 1,
|
|
"rows": 2,
|
|
"cost": 0.01034841,
|
|
"filtered": 100,
|
|
"attached_condition": "t2.b = 1"
|
|
}
|
|
}
|
|
]
|
|
}
|
|
}
|
|
]
|
|
}
|
|
}
|
|
PREPARE stmt FROM "SELECT a FROM t1 GROUP BY a
|
|
HAVING a = ( (SELECT b FROM t2 where b=1) IN (SELECT c FROM t3) ) + 1";
|
|
EXECUTE stmt;
|
|
a
|
|
2
|
|
EXECUTE stmt;
|
|
a
|
|
2
|
|
DEALLOCATE PREPARE stmt;
|
|
DROP TABLE t1,t2,t3;
|
|
#
|
|
# MDEV-33747: Optimization of (SELECT) IN (SELECT ...) executes subquery at prepare stage
|
|
#
|
|
create table t1 (a int, b int);
|
|
insert into t1 select seq, seq from seq_1_to_200;
|
|
create table t2 as select * from t1;
|
|
create table t3 as select * from t1;
|
|
analyze table t1,t2,t3;
|
|
Table Op Msg_type Msg_text
|
|
test.t1 analyze status Engine-independent statistics collected
|
|
test.t1 analyze status OK
|
|
test.t2 analyze status Engine-independent statistics collected
|
|
test.t2 analyze status OK
|
|
test.t3 analyze status Engine-independent statistics collected
|
|
test.t3 analyze status OK
|
|
select @@expensive_subquery_limit < 200 as DEFAULTS_ARE_SUITABLE;
|
|
DEFAULTS_ARE_SUITABLE
|
|
1
|
|
flush status;
|
|
explain select * from t1 where a<3 or (select max(a) from t2) in (select b from t3);
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 ALL NULL NULL NULL NULL 200 Using where
|
|
3 SUBQUERY t3 ALL NULL NULL NULL NULL 200 Using where
|
|
2 SUBQUERY t2 ALL NULL NULL NULL NULL 200
|
|
# Must show 0. If this shows 200, this means subquery was executed and you have a bug:
|
|
show status like 'Handler_read_rnd_next%';
|
|
Variable_name Value
|
|
Handler_read_rnd_next 0
|
|
drop table t1,t2,t3;
|
|
# End of 10.4 tests
|