You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
469 lines
13 KiB
469 lines
13 KiB
# The include statement below is a temp one for tests that are yet to
|
|
#be ported to run with InnoDB,
|
|
#but needs to be kept for tests that would need MyISAM in future.
|
|
--source include/force_myisam_default.inc
|
|
--source include/have_myisam.inc
|
|
CALL mtr.add_suppression("==[0-9]*== Warning: set address range perms: large range");
|
|
#
|
|
# Test of different EXPLAINs
|
|
|
|
--disable_warnings
|
|
drop table if exists t1;
|
|
--enable_warnings
|
|
create table t1 (id int not null, str char(10), unique(str)) charset utf8mb4;
|
|
explain select * from t1;
|
|
insert into t1 values (1, null),(2, null),(3, "foo"),(4, "bar");
|
|
select * from t1 where str is null;
|
|
select * from t1 where str="foo";
|
|
explain select * from t1 where str is null;
|
|
explain format=json select * from t1 where str is null;
|
|
explain select * from t1 where str="foo";
|
|
explain select * from t1 ignore key (str) where str="foo";
|
|
explain select * from t1 use key (str,str) where str="foo";
|
|
|
|
#The following should give errors
|
|
--error 1176
|
|
explain select * from t1 use key (str,str,foo) where str="foo";
|
|
--error 1176
|
|
explain select * from t1 ignore key (str,str,foo) where str="foo";
|
|
drop table t1;
|
|
|
|
explain select 1;
|
|
|
|
create table t1 (a int not null);
|
|
explain select count(*) from t1;
|
|
insert into t1 values(1);
|
|
explain select count(*) from t1;
|
|
insert into t1 values(1);
|
|
explain select count(*) from t1;
|
|
drop table t1;
|
|
|
|
#
|
|
# Bug #3403 Wrong encoding in EXPLAIN SELECT output
|
|
#
|
|
set names koi8r;
|
|
--character_set koi8r
|
|
create table ÔÁÂ (ËÏÌ0 int, ËÏÌ1 int, key ÉÎÄ0 (ËÏÌ0), key ÉÎÄ01 (ËÏÌ0,ËÏÌ1));
|
|
insert into ÔÁÂ (ËÏÌ0) values (1);
|
|
insert into ÔÁÂ (ËÏÌ0) values (2);
|
|
explain select ËÏÌ0 from ÔÁÂ where ËÏÌ0=1;
|
|
drop table ÔÁÂ;
|
|
--character_set utf8mb4
|
|
set names latin1;
|
|
|
|
# End of 4.1 tests
|
|
|
|
|
|
#
|
|
# Bug#15463: EXPLAIN SELECT..INTO hangs the client (QB, command line)
|
|
#
|
|
select 3 into @v1;
|
|
explain select 3 into @v1;
|
|
|
|
#
|
|
# Bug#22331: Wrong WHERE in EXPLAIN when all expressions were
|
|
# optimized away.
|
|
#
|
|
create table t1(f1 int, f2 int);
|
|
insert into t1 values (1,1);
|
|
create view v1 as select * from t1 where f1=1;
|
|
explain select * from v1 where f2=1;
|
|
explain select * from t1 where 0;
|
|
explain select * from t1 where 1;
|
|
explain select * from t1 having 0;
|
|
explain select * from t1 having 1;
|
|
drop view v1;
|
|
drop table t1;
|
|
|
|
#
|
|
# Bug #32241: memory corruption due to large index map in 'Range checked for
|
|
# each record'
|
|
#
|
|
|
|
CREATE TABLE t1(c INT);
|
|
INSERT INTO t1 VALUES (),();
|
|
|
|
CREATE TABLE t2 (b INT,
|
|
KEY(b),KEY(b),KEY(b),KEY(b),KEY(b),
|
|
KEY(b),KEY(b),KEY(b),KEY(b),KEY(b),
|
|
KEY(b),KEY(b),KEY(b),KEY(b),KEY(b),
|
|
KEY(b),KEY(b),KEY(b),KEY(b),KEY(b),
|
|
KEY(b),KEY(b),KEY(b),KEY(b),KEY(b),
|
|
KEY(b),KEY(b),KEY(b),KEY(b),KEY(b),
|
|
KEY(b),KEY(b),KEY(b),KEY(b),KEY(b),
|
|
KEY(b),KEY(b),KEY(b),KEY(b),KEY(b));
|
|
|
|
INSERT INTO t2 VALUES (),(),();
|
|
|
|
# We only need to make sure that there is no buffer overrun and the index map
|
|
# is displayed correctly
|
|
--replace_column 1 X 2 X 3 X 5 X 6 X 7 X 8 X 9 X 10 X
|
|
EXPLAIN SELECT 1 FROM
|
|
(SELECT 1 FROM t2,t1 WHERE b < c GROUP BY 1 LIMIT 1) AS d2;
|
|
DROP TABLE t2;
|
|
DROP TABLE t1;
|
|
|
|
#
|
|
# Bug #34773: query with explain and derived table / other table
|
|
# crashes server
|
|
#
|
|
|
|
CREATE TABLE t1(a INT);
|
|
CREATE TABLE t2(a INT);
|
|
INSERT INTO t1 VALUES (1),(2);
|
|
INSERT INTO t2 VALUES (1),(2);
|
|
|
|
EXPLAIN SELECT 1
|
|
FROM (SELECT COUNT(DISTINCT t1.a) FROM t1,t2 GROUP BY t1.a) AS s1;
|
|
|
|
EXPLAIN SELECT 1
|
|
FROM (SELECT COUNT(DISTINCT t1.a) FROM t1,t2 GROUP BY t1.a) AS s1;
|
|
|
|
prepare s1 from
|
|
'EXPLAIN SELECT 1
|
|
FROM (SELECT COUNT(DISTINCT t1.a) FROM t1,t2 GROUP BY t1.a) AS s1';
|
|
execute s1;
|
|
|
|
prepare s1 from
|
|
'EXPLAIN FORMAT=JSON SELECT 1
|
|
FROM (SELECT COUNT(DISTINCT t1.a) FROM t1,t2 GROUP BY t1.a) AS s1';
|
|
execute s1;
|
|
|
|
prepare s1 from
|
|
'EXPLAIN SELECT 1
|
|
FROM (SELECT COUNT(DISTINCT t1.a) FROM t1,t2 GROUP BY t1.a) AS s1';
|
|
execute s1;
|
|
execute s1;
|
|
|
|
DROP TABLE t1,t2;
|
|
|
|
|
|
#
|
|
# Bug #43354: Use key hint can crash server in explain query
|
|
#
|
|
|
|
CREATE TABLE t1 (a INT PRIMARY KEY);
|
|
|
|
--error ER_KEY_DOES_NOT_EXITS
|
|
EXPLAIN SELECT COUNT(a) FROM t1 USE KEY(a);
|
|
|
|
DROP TABLE t1;
|
|
|
|
#
|
|
# Bug#45989 memory leak after explain encounters an error in the query
|
|
#
|
|
CREATE TABLE t1(a LONGTEXT);
|
|
INSERT INTO t1 VALUES (repeat('a',@@global.max_allowed_packet));
|
|
INSERT INTO t1 VALUES (repeat('b',@@global.max_allowed_packet));
|
|
--error ER_BAD_FIELD_ERROR
|
|
EXPLAIN SELECT DISTINCT 1 FROM t1,
|
|
(SELECT a AS away FROM t1 GROUP BY a WITH ROLLUP) as d1
|
|
WHERE t1.a = d1.a;
|
|
--error ER_BAD_FIELD_ERROR
|
|
EXPLAIN SELECT DISTINCT 1 FROM t1,
|
|
(SELECT DISTINCTROW a AS away FROM t1 GROUP BY a WITH ROLLUP) as d1
|
|
WHERE t1.a = d1.a;
|
|
DROP TABLE t1;
|
|
|
|
--echo #
|
|
--echo # Bug#48295:
|
|
--echo # explain crash with subquery and ONLY_FULL_GROUP_BY sql_mode
|
|
--echo #
|
|
|
|
CREATE TABLE t1 (f1 INT);
|
|
|
|
SELECT @@session.sql_mode INTO @old_sql_mode;
|
|
SET SESSION sql_mode='ONLY_FULL_GROUP_BY';
|
|
|
|
# EXPLAIN (with subselect). used to crash.
|
|
# This is actually a valid query for this sql_mode,
|
|
# but it was transformed in such a way that it failed, see
|
|
# Bug#12329653 - EXPLAIN, UNION, PREPARED STATEMENT, CRASH, SQL_FULL_GROUP_BY
|
|
EXPLAIN SELECT 1 FROM t1
|
|
WHERE f1 > ALL( SELECT t.f1 FROM t1,t1 AS t );
|
|
|
|
SET SESSION sql_mode=@old_sql_mode;
|
|
|
|
DROP TABLE t1;
|
|
|
|
--echo End of 5.0 tests.
|
|
|
|
--echo #
|
|
--echo # Bug#37870: Usage of uninitialized value caused failed assertion.
|
|
--echo #
|
|
set @opt_sw_save= @@optimizer_switch;
|
|
|
|
--disable_query_log
|
|
if (`select locate('semijoin', @@optimizer_switch) > 0`)
|
|
{
|
|
set optimizer_switch='semijoin=off';
|
|
}
|
|
--enable_query_log
|
|
create table t1 (dt datetime not null, t time not null);
|
|
create table t2 (dt datetime not null);
|
|
insert into t1 values ('2001-01-01 1:1:1', '1:1:1'),
|
|
('2001-01-01 1:1:1', '1:1:1');
|
|
insert into t2 values ('2001-01-01 1:1:1'), ('2001-01-01 1:1:1');
|
|
flush tables;
|
|
EXPLAIN SELECT outr.dt FROM t1 AS outr WHERE outr.dt IN (SELECT innr.dt FROM t2 AS innr WHERE outr.dt IS NULL );
|
|
flush tables;
|
|
SELECT outr.dt FROM t1 AS outr WHERE outr.dt IN (SELECT innr.dt FROM t2 AS innr WHERE outr.dt IS NULL );
|
|
flush tables;
|
|
EXPLAIN SELECT outr.dt FROM t1 AS outr WHERE outr.dt IN ( SELECT innr.dt FROM t2 AS innr WHERE outr.t < '2005-11-13 7:41:31' );
|
|
flush tables;
|
|
SELECT outr.dt FROM t1 AS outr WHERE outr.dt IN ( SELECT innr.dt FROM t2 AS innr WHERE outr.t < '2005-11-13 7:41:31' );
|
|
drop tables t1, t2;
|
|
set optimizer_switch= @opt_sw_save;
|
|
|
|
--echo #
|
|
--echo # Bug#47669: Query showed by EXPLAIN gives different result from original query
|
|
--echo #
|
|
|
|
CREATE TABLE t1 (c int);
|
|
INSERT INTO t1 VALUES (NULL);
|
|
CREATE TABLE t2 (d int);
|
|
INSERT INTO t2 VALUES (NULL), (0);
|
|
EXPLAIN SELECT (SELECT 1 FROM t2 WHERE d = c) FROM t1;
|
|
DROP TABLE t1, t2;
|
|
|
|
--echo #
|
|
--echo # Bug#30302: Tables that were optimized away are printed in the
|
|
--echo # EXPLAIN warning.
|
|
--echo #
|
|
create table t1(f1 int);
|
|
create table t2(f2 int);
|
|
insert into t1 values(1);
|
|
insert into t2 values(1),(2);
|
|
explain select * from t1 where f1=1;
|
|
explain select * from t1 join t2 on f1=f2 where f1=1;
|
|
drop table t1,t2;
|
|
|
|
--echo #
|
|
--echo # Bug #48419: another explain crash..
|
|
--echo #
|
|
CREATE TABLE t1 (a INT);
|
|
CREATE TABLE t2 (b BLOB, KEY b(b(100)));
|
|
INSERT INTO t2 VALUES ('1'), ('2'), ('3');
|
|
|
|
FLUSH TABLES;
|
|
|
|
EXPLAIN SELECT 1 FROM t1 WHERE a = (SELECT 1 FROM t1 t JOIN t2 WHERE b <= 1 AND t.a);
|
|
|
|
DROP TABLE t1, t2;
|
|
|
|
--echo #
|
|
--echo # Bug #48573: difference of index selection between rpm binary and
|
|
--echo # .tar.gz, windows vs linux..
|
|
--echo #
|
|
|
|
CREATE TABLE t1(c1 INT, c2 INT, c4 INT, c5 INT, KEY(c2, c5), KEY(c2, c4, c5));
|
|
INSERT INTO t1 VALUES(4, 1, 1, 1);
|
|
INSERT INTO t1 VALUES(3, 1, 1, 1);
|
|
INSERT INTO t1 VALUES(2, 1, 1, 1);
|
|
INSERT INTO t1 VALUES(1, 1, 1, 1);
|
|
|
|
EXPLAIN SELECT c1 FROM t1 WHERE c2 = 1 AND c4 = 1 AND c5 = 1;
|
|
|
|
DROP TABLE t1;
|
|
|
|
--echo #
|
|
--echo # Bug#56814 Explain + subselect + fulltext crashes server
|
|
--echo #
|
|
|
|
CREATE TABLE t1(f1 VARCHAR(6) NOT NULL,
|
|
FULLTEXT KEY(f1),UNIQUE(f1));
|
|
INSERT INTO t1 VALUES ('test');
|
|
|
|
EXPLAIN SELECT 1 FROM t1
|
|
WHERE 1 > ALL((SELECT 1 FROM t1 JOIN t1 a ON (MATCH(t1.f1) AGAINST (""))
|
|
WHERE t1.f1 GROUP BY t1.f1));
|
|
|
|
PREPARE stmt FROM
|
|
'EXPLAIN SELECT 1 FROM t1
|
|
WHERE 1 > ALL((SELECT 1 FROM t1 RIGHT OUTER JOIN t1 a
|
|
ON (MATCH(t1.f1) AGAINST (""))
|
|
WHERE t1.f1 GROUP BY t1.f1))';
|
|
|
|
EXECUTE stmt;
|
|
EXECUTE stmt;
|
|
|
|
DEALLOCATE PREPARE stmt;
|
|
|
|
PREPARE stmt FROM
|
|
'EXPLAIN SELECT 1 FROM t1
|
|
WHERE 1 > ALL((SELECT 1 FROM t1 JOIN t1 a
|
|
ON (MATCH(t1.f1) AGAINST (""))
|
|
WHERE t1.f1 GROUP BY t1.f1))';
|
|
|
|
EXECUTE stmt;
|
|
EXECUTE stmt;
|
|
|
|
DEALLOCATE PREPARE stmt;
|
|
|
|
DROP TABLE t1;
|
|
|
|
--echo End of 5.1 tests.
|
|
|
|
--echo #
|
|
--echo # Bug#46860:
|
|
--echo # Crash/segfault using EXPLAIN on query using UNION in subquery.
|
|
--echo #
|
|
--disable_warnings
|
|
drop table if exists t1;
|
|
--enable_warnings
|
|
create table `t1` (`a` int);
|
|
--error ER_NON_UNIQ_ERROR
|
|
explain select 1 from `t1`, `t1` as `t2`
|
|
where `t1`.`a` > all ( (select `a` from `t1` ) union (select `a`) );
|
|
drop table t1;
|
|
|
|
--echo #
|
|
--echo # BUG#30597: Change EXPLAIN output to include extrema of
|
|
--echo # UNION components
|
|
--echo #
|
|
|
|
EXPLAIN
|
|
SELECT 1
|
|
UNION ALL SELECT 1 UNION ALL SELECT 1 UNION ALL SELECT 1 UNION ALL SELECT 1
|
|
UNION ALL SELECT 1 UNION ALL SELECT 1 UNION ALL SELECT 1 UNION ALL SELECT 1
|
|
UNION ALL SELECT 1 UNION ALL SELECT 1 UNION ALL SELECT 1 UNION ALL SELECT 1
|
|
UNION ALL SELECT 1 UNION ALL SELECT 1 UNION ALL SELECT 1 UNION ALL SELECT 1
|
|
UNION ALL SELECT 1 UNION ALL SELECT 1 UNION ALL SELECT 1 UNION ALL SELECT 1
|
|
UNION ALL SELECT 1 UNION ALL SELECT 1 UNION ALL SELECT 1 UNION ALL SELECT 1
|
|
;
|
|
|
|
--echo # End BUG#30597
|
|
|
|
--echo #
|
|
--echo # BUG#53562: EXPLAIN statement should hint when
|
|
--echo # index is not used due to type conversion
|
|
--echo #
|
|
|
|
CREATE TABLE t1 (url char(1) PRIMARY KEY) charset latin1;
|
|
INSERT INTO t1 VALUES ('1'),('2'),('3'),('4'),('5');
|
|
|
|
--echo
|
|
--echo # Normally, lookup access on primary key is done
|
|
EXPLAIN SELECT * FROM t1 WHERE url='1';
|
|
--echo
|
|
--echo # Test that index can't be used for lookup due to type conversion
|
|
--echo # (comparing char and int)
|
|
SELECT * FROM t1 WHERE url=1;
|
|
EXPLAIN SELECT * FROM t1 WHERE url=1;
|
|
--echo
|
|
--echo # Test that index can't be used for lookup due to collation mismatch
|
|
SELECT * FROM t1 WHERE url='1' collate latin1_german2_ci;
|
|
EXPLAIN SELECT * FROM t1 WHERE url='1' collate latin1_german2_ci;
|
|
|
|
--echo
|
|
--echo # Normally, range access on primary key is done
|
|
EXPLAIN SELECT * FROM t1 WHERE url>'3';
|
|
--echo
|
|
--echo # Test that range access on index can't be done due to type conversion
|
|
--echo # (comparing char and int)
|
|
SELECT * FROM t1 WHERE url>3;
|
|
EXPLAIN SELECT * FROM t1 WHERE url>3;
|
|
--echo
|
|
--echo # Test that range access on index can't be done due to collation mismatch
|
|
SELECT * FROM t1 WHERE url>'3' collate latin1_german2_ci;
|
|
EXPLAIN SELECT * FROM t1 WHERE url>'3' collate latin1_german2_ci;
|
|
|
|
--echo
|
|
DROP TABLE t1;
|
|
|
|
--echo # End BUG#53562
|
|
|
|
--echo #
|
|
--echo # Bug#11829785 EXPLAIN CRASH WITH RIGHT OUTER JOIN, SUBQUERIES
|
|
--echo #
|
|
|
|
CREATE TABLE t1(a INT);
|
|
|
|
INSERT INTO t1 VALUES (0), (0);
|
|
|
|
PREPARE s FROM
|
|
'EXPLAIN
|
|
SELECT SUBSTRING(1, (SELECT 1 FROM t1 a1 RIGHT OUTER JOIN t1 ON 0)) AS d
|
|
FROM t1 WHERE 0 > ANY (SELECT @a FROM t1)';
|
|
|
|
--echo # After WL#4443 we don't evaluate subqueries during prepare, so no error.
|
|
#--error ER_SUBQUERY_NO_1_ROW
|
|
EXECUTE s;
|
|
|
|
DEALLOCATE PREPARE s;
|
|
DROP TABLE t1;
|
|
|
|
--echo #
|
|
--echo # WL#4897: Add EXPLAIN INSERT/UPDATE/DELETE
|
|
--echo #
|
|
--echo # Coverage tests after code refactoring
|
|
--echo #
|
|
|
|
CREATE TABLE t1 (a INT);
|
|
INSERT INTO t1 VALUES (1),(2),(3);
|
|
CREATE TABLE t2 (a INT);
|
|
INSERT INTO t2 VALUES (3),(4),(5);
|
|
|
|
# LIMIT <offset> is for SELECT, not for EXPLAIN OUTPUT:
|
|
--echo # EXPLAIN must return 3 rows:
|
|
EXPLAIN SELECT SQL_CALC_FOUND_ROWS * FROM t1 UNION SELECT * FROM t2 LIMIT 2,2;
|
|
|
|
EXPLAIN REPLACE INTO t1 VALUES (10);
|
|
EXPLAIN REPLACE INTO t1 SELECT * FROM t2;
|
|
|
|
DROP TABLE t1, t2;
|
|
|
|
--echo # End WL#4897
|
|
|
|
--echo #
|
|
--echo # Bug#21139522 PREPARED STATEMENT EXPLAIN DELETE .. WITH STRICT
|
|
--echo # MODE VIOLATION FLATLINES
|
|
--echo #
|
|
CREATE TABLE t1(a INT);
|
|
--error ER_TRUNCATED_WRONG_VALUE
|
|
PREPARE s FROM "EXPLAIN DELETE FROM t1 WHERE a || 'a' LIMIT 1";
|
|
DROP TABLE t1;
|
|
|
|
--echo # End of test Bug#21139522
|
|
--echo End of 6.0 tests.
|
|
|
|
--echo #
|
|
--echo # Bug #18899860: EXPLAIN .. SELECT .. FOR UPDATE TAKES LOCKS
|
|
--echo #
|
|
|
|
CREATE TABLE t1(c1 INT PRIMARY KEY) ENGINE=INNODB;
|
|
INSERT INTO t1 VALUES (1),(2),(3);
|
|
CONNECT (c1,localhost,root,,);
|
|
CONNECT (c2,localhost,root,,);
|
|
CONNECTION c1;
|
|
START TRANSACTION;
|
|
EXPLAIN SELECT * FROM t1 WHERE c1 = 1 FOR UPDATE;
|
|
CONNECTION c2;
|
|
START TRANSACTION;
|
|
EXPLAIN SELECT * FROM t1 WHERE c1 = 1 FOR UPDATE;
|
|
CONNECTION default;
|
|
DISCONNECT c1;
|
|
DISCONNECT c2;
|
|
DROP TABLE t1;
|
|
|
|
--echo # End of test for Bug#18899860
|
|
|
|
--echo #
|
|
--echo # Bug #23209903: ASSERTION: SELECT_LEX->LEAF_TABLE_COUNT == 0 ||
|
|
--echo # THD->LEX->IS_QUERY_TABLES_LOCKED
|
|
--echo #
|
|
|
|
CREATE TABLE t1 (a INT, b INT) ENGINE=INNODB PARTITION BY KEY (b) PARTITIONS 2;
|
|
CREATE TABLE t2 (c INT) ENGINE=INNODB;
|
|
--echo
|
|
--echo # Test single-table update with subquery and empty outer query block
|
|
UPDATE t1 SET a=(SELECT c from t2) WHERE 0;
|
|
EXPLAIN UPDATE t1 SET a=(SELECT c from t2) WHERE 0;
|
|
--echo
|
|
--echo # Test delete from single-table with subquery and empty outer query block
|
|
DELETE FROM t1 WHERE 0 AND a IN (SELECT c from t2);
|
|
EXPLAIN DELETE FROM t1 WHERE 0 AND a IN (SELECT c from t2);
|
|
DROP TABLE t1, t2;
|
|
|
|
--echo # End of test for Bug#23209903
|
|
|
|
|