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fb71449b10
Merged revision 5224 from mysql-5.6 and added a test case.
..
revno: 5224
committer: Sergey Glukhov <sergey.glukhov@oracle.com>
branch nick: mysql-5.6
timestamp: Wed 2013-06-19 14:24:08 +0400
message:
Bug#16620047 INCORRECT QUERY RESULT (AFTER SERVER UPGRADE)
82 lines
2.3 KiB
Text
82 lines
2.3 KiB
Text
set @save_ext_key_optimizer_switch=@@optimizer_switch;
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#
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# MDEV-3992 Server crash or valgrind errors in test_if_skip_sort_order/test_if_cheaper_ordering
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# on GROUP BY with indexes on InnoDB table
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#
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CREATE TABLE t1 (
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pk INT PRIMARY KEY,
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a VARCHAR(1) NOT NULL,
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KEY (pk)
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) ENGINE=InnoDB;
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set optimizer_switch='extended_keys=on';
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INSERT INTO t1 VALUES (1,'a'),(2,'b');
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EXPLAIN
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SELECT COUNT(*), pk field1, pk AS field2
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FROM t1 WHERE a = 'r' OR pk = 183
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GROUP BY field1, field2;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 index PRIMARY,pk PRIMARY 4 NULL 2 Using where
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SELECT COUNT(*), pk field1, pk AS field2
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FROM t1 WHERE a = 'r' OR pk = 183
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GROUP BY field1, field2;
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COUNT(*) field1 field2
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EXPLAIN
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SELECT COUNT(*), pk field1 FROM t1
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WHERE a = 'r' OR pk = 183 GROUP BY field1, field1;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 index PRIMARY,pk PRIMARY 4 NULL 2 Using where
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SELECT COUNT(*), pk field1 FROM t1
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WHERE a = 'r' OR pk = 183 GROUP BY field1, field1;
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COUNT(*) field1
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drop table t1;
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set optimizer_switch=@save_ext_key_optimizer_switch;
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#
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# MDEV-4002 Server crash or valgrind errors in Item_func_group_concat::setup and Item_func_group_concat::add
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#
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CREATE TABLE t1 (
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pk INT NOT NULL PRIMARY KEY,
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d1 DOUBLE,
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d2 DOUBLE,
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i INT NOT NULL DEFAULT '0',
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KEY (i)
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) ENGINE=InnoDB;
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INSERT INTO t1 VALUES (1,1.0,1.1,1),(2,2.0,2.2,2);
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PREPARE stmt FROM "
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SELECT DISTINCT i, GROUP_CONCAT( d1, d2 ORDER BY d1, d2 )
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FROM t1 a1 NATURAL JOIN t1 a2 GROUP BY i WITH ROLLUP
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";
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EXECUTE stmt;
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i GROUP_CONCAT( d1, d2 ORDER BY d1, d2 )
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1 11.1
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2 22.2
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NULL 11.1,22.2
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EXECUTE stmt;
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i GROUP_CONCAT( d1, d2 ORDER BY d1, d2 )
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1 11.1
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2 22.2
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NULL 11.1,22.2
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DROP TABLE t1;
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End of 5.5 tests
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#
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# MDEV-5719: Wrong result with GROUP BY and LEFT OUTER JOIN
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#
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CREATE TABLE t1 (oidGroup INT, oid INT PRIMARY KEY)ENGINE=INNODB;
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INSERT INTO t1 VALUES (1,1),(1,2),(1,3),(1,4);
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CREATE TABLE t2 (oid INT PRIMARY KEY)ENGINE=INNODB;
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INSERT INTO t2 VALUES (3);
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SELECT a.oidGroup, a.oid, b.oid FROM t1 a LEFT JOIN t2 b ON
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a.oid=b.oid WHERE a.oidGroup=1;
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oidGroup oid oid
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1 1 NULL
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1 2 NULL
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1 3 3
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1 4 NULL
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SELECT a.oidGroup, a.oid, b.oid FROM t1 a LEFT JOIN t2 b ON
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a.oid=b.oid WHERE a.oidGroup=1 GROUP BY a.oid;
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oidGroup oid oid
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1 1 NULL
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1 2 NULL
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1 3 3
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1 4 NULL
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DROP TABLE t1, t2;
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# End of tests
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