 as d1
         WHERE t1.a = d1.a;
DROP TABLE t1;

--echo #
--echo # Bug#48295:
--echo # explain extended 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 EXTENDED (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 EXTENDED 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;
eval EXPLAIN $FORMAT 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;
eval EXPLAIN $FORMAT 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 EXTENDED 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 EXTENDED 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 EXTENDED warning.
--echo #
create table t1(f1 int);
create table t2(f2 int);
insert into t1 values(1);
insert into t2 values(1),(2);
explain extended select * from t1 where f1=1;
explain extended 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;

eval EXPLAIN $FORMAT 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);

eval EXPLAIN $FORMAT 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');

eval EXPLAIN $FORMAT 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));

eval PREPARE stmt FROM 'EXPLAIN $FORMAT 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;

eval PREPARE stmt FROM 'EXPLAIN $FORMAT 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 EXTENDED 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 extended 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 # 

eval EXPLAIN $FORMAT 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);
INSERT INTO t1 VALUES ('1'),('2'),('3'),('4'),('5');       

--echo
--echo # Normally, lookup access on primary key is done
EXPLAIN EXTENDED 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 EXTENDED 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 EXTENDED SELECT * FROM t1 WHERE url='1' collate latin1_german2_ci;

--echo
--echo # Normally, range access on primary key is done
EXPLAIN EXTENDED 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 EXTENDED 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 EXTENDED SELECT * FROM t1 WHERE url>'3' collate latin1_german2_ci;

--echo
DROP TABLE t1;

--echo # End BUG#53562

--echo #
--echo # Bug#11829785 EXPLAIN EXTENDED CRASH WITH RIGHT OUTER JOIN, SUBQUERIES
--echo #

CREATE TABLE t1(a INT);

INSERT INTO t1 VALUES (0), (0);

PREPARE s FROM 
'EXPLAIN EXTENDED
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)';

--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:
eval EXPLAIN $FORMAT SELECT SQL_CALC_FOUND_ROWS * FROM t1 UNION SELECT * FROM t2 LIMIT 2,2;

DROP TABLE t1, t2;

--echo # End WL#4897

--echo End of 6.0 tests.
