EVOLUTION-MANAGER

Edit File: subselect_innodb.test

-- source include/have_innodb.inc

# Note: the tests uses only non-semijoin subqueries so semi-join switch
#       settings are not relevant.
set @subselect_innodb_tmp=@@optimizer_switch;
set optimizer_switch='mrr=on,mrr_sort_keys=on,index_condition_pushdown=on';
--disable_warnings
drop table if exists t1,t2,t3;
--enable_warnings

#
# key field overflow test
#
CREATE TABLE t1
(
FOLDERID VARCHAR(32)BINARY NOT NULL
, FOLDERNAME VARCHAR(255)BINARY NOT NULL
, CREATOR VARCHAR(255)BINARY
, CREATED TIMESTAMP NOT NULL
, DESCRIPTION VARCHAR(255)BINARY
, FOLDERTYPE INTEGER NOT NULL
, MODIFIED TIMESTAMP
, MODIFIER VARCHAR(255)BINARY
, FOLDERSIZE INTEGER NOT NULL
, PARENTID VARCHAR(32)BINARY
, REPID VARCHAR(32)BINARY
, ORIGINATOR INTEGER

, PRIMARY KEY ( FOLDERID )
) ENGINE=InnoDB;
CREATE INDEX FFOLDERID_IDX ON t1 (FOLDERID);
CREATE INDEX CMFLDRPARNT_IDX ON t1 (PARENTID);
INSERT INTO t1 VALUES("0c9aab05b15048c59bc35c8461507deb", "System", "System", "2003-06-05 16:30:00", "The system content repository folder.", "3", "2003-06-05 16:30:00", "System", "0", NULL, "9c9aab05b15048c59bc35c8461507deb", "1");
INSERT INTO t1 VALUES("2f6161e879db43c1a5b82c21ddc49089", "Default", "System", "2003-06-09 10:52:02", "The default content repository folder.", "3", "2003-06-05 16:30:00", "System", "0", NULL, "03eea05112b845949f3fd03278b5fe43", "1");
INSERT INTO t1 VALUES("c373e9f5ad0791724315444553544200", "AddDocumentTest", "admin", "2003-06-09 10:51:25", "Movie Reviews", "0", "2003-06-09 10:51:25", "admin", "0", "2f6161e879db43c1a5b82c21ddc49089", "03eea05112b845949f3fd03278b5fe43", NULL);
SELECT 'c373e9f5ad0791a0dab5444553544200' IN(SELECT t1.FOLDERID FROM t1 WHERE t1.PARENTID='2f6161e879db43c1a5b82c21ddc49089' AND t1.FOLDERNAME = 'Level1');
drop table t1;

#
# UNION unlocking test
#
create table t1 (a int) engine=innodb;
create table t2 (a int) engine=innodb;
create table t3 (a int) engine=innodb;
insert into t1 values (1),(2),(3),(4);
insert into t2 values (10),(20),(30),(40);
insert into t3 values (1),(2),(10),(50);
select a from t3 where t3.a in (select a from t1 where a <= 3 union select * from t2 where a <= 30);
drop table t1,t2,t3;

CREATE TABLE t1 (
   processor_id INTEGER NOT NULL,
   PRIMARY KEY (processor_id)
) ENGINE=InnoDB;
CREATE TABLE t3 (
   yod_id BIGINT UNSIGNED AUTO_INCREMENT NOT NULL,
   login_processor INTEGER UNSIGNED ,
   PRIMARY KEY (yod_id)
) ENGINE=InnoDB;
CREATE TABLE t2 (
   processor_id INTEGER NOT NULL,
   yod_id BIGINT UNSIGNED NOT NULL,
   PRIMARY KEY (processor_id, yod_id),
   INDEX (processor_id),
   INDEX (yod_id),
   FOREIGN KEY (processor_id) REFERENCES t1(processor_id),
   FOREIGN KEY (yod_id) REFERENCES t3(yod_id) 
) ENGINE=InnoDB;
INSERT INTO t1 VALUES (1),(2),(3);
INSERT INTO t3 VALUES (1,1),(2,2),(3,3);
INSERT INTO t2 VALUES (1,1),(2,2),(3,3);
SELECT distinct p1.processor_id, (SELECT y.yod_id FROM t1 p2, t2 y WHERE p2.processor_id = p1.processor_id and p2.processor_id = y.processor_id) FROM t1 p1;
drop table t2,t1,t3;

#
# innodb locking
#
CREATE TABLE t1 (
  id int(11) NOT NULL default '0',
  b int(11) default NULL,
  c char(3) default NULL,
  PRIMARY KEY  (id),
  KEY t2i1 (b)
) ENGINE=innodb DEFAULT CHARSET=latin1;
INSERT INTO t1 VALUES (0,0,'GPL'),(1,0,'GPL'),(2,1,'GPL'),(3,2,'GPL');
CREATE TABLE t2 (
  id int(11) NOT NULL default '0',
  b int(11) default NULL,
  c char(3) default NULL,
  PRIMARY KEY  (id),
  KEY t2i (b)
) ENGINE=innodb DEFAULT CHARSET=latin1;
INSERT INTO t2 VALUES (0,0,'GPL'),(1,0,'GPL'),(2,1,'GPL'),(3,2,'GPL');
select (select max(id) from t2 where b=1 group by b) as x,b from t1 where b=1;
drop table t1,t2;

#
# reiniting innodb tables
#
create table t1 (id int not null, value char(255), primary key(id)) engine=innodb;
create table t2 (id int not null, value char(255)) engine=innodb;
insert into t1 values (1,'a'),(2,'b');
insert into t2 values (1,'z'),(2,'x');
select t2.id,t2.value,(select t1.value from t1 where t1.id=t2.id) from t2;
select t2.id,t2.value,(select t1.value from t1 where t1.id=t2.id) from t2;
drop table t1,t2;

#
# unlocking tables with subqueries in HAVING
#
create table t1 (a int, b int) engine=innodb;
insert into t1 values (1,2), (1,3), (2,3), (2,4), (2,5), (3,4), (4,5), (4,100);
create table t2 (a int) engine=innodb;
insert into t2 values (1),(2),(3),(4);
select a, sum(b) as b from t1 group by a having b > (select max(a) from t2);
drop table t1, t2;

#
# bug #5220 test suite
#
CREATE TABLE `t1` ( `unit` varchar(50) NOT NULL default '', `ingredient` varchar(50) NOT NULL default '') ENGINE=InnoDB DEFAULT CHARSET=latin1;

CREATE TABLE `t2` ( `ingredient` varchar(50) NOT NULL default '', `unit` varchar(50) NOT NULL default '', PRIMARY KEY (ingredient, unit)) ENGINE=InnoDB DEFAULT CHARSET=latin1;

INSERT INTO `t1` VALUES ('xx','yy');
INSERT INTO `t2` VALUES ('yy','xx');

SELECT R.unit, R.ingredient FROM t1 R WHERE R.ingredient IN (SELECT N.ingredient FROM t2 N WHERE N.unit = R.unit);

drop table t1, t2;

#
# possible early unlock
#
CREATE TABLE t1 (
  id INT NOT NULL auto_increment,
  date1 DATE, coworkerid INT,
  description VARCHAR(255),
  sum_used DOUBLE,
  sum_remaining DOUBLE,
  comments VARCHAR(255),
  PRIMARY KEY(id)
) engine=innodb;
insert into t1 values (NULL, '1999-01-01', 1,'test', 22, 33, 'comment'), (NULL, '1999-01-01', 1,'test', 22, 33, 'comment'), (NULL, '1999-01-01', 1,'test', 22, 33, 'comment'), (NULL, '1998-01-01', 1,'test', 22, 33, 'comment'), (NULL, '1998-01-01', 1,'test', 22, 33, 'comment'), (NULL, '2004-01-01', 1,'test', 22, 33, 'comment'), (NULL, '2004-01-01', 1,'test', 22, 33, 'comment');
SELECT DISTINCT
 (SELECT sum(sum_used) FROM t1 WHERE sum_used > 0 AND year(date1) <= '2004') as somallontvangsten,
 (SELECT sum(sum_used) FROM t1 WHERE sum_used < 0 AND year(date1) <= '2004') as somalluitgaven
 FROM t1;
select * from t1;
drop table t1;

#
# cleaning up of results of subselects (BUG#8125)
#
CREATE TABLE `t1` ( `a` char(3) NOT NULL default '', `b` char(3) NOT NULL default '', `c` char(3) NOT NULL default '', PRIMARY KEY  (`a`,`b`,`c`)) ENGINE=InnoDB;
CREATE TABLE t2 LIKE t1;
INSERT INTO t1 VALUES (1,1,1);
INSERT INTO t2 VALUES (1,1,1);
PREPARE my_stmt FROM "SELECT t1.b, count(*) FROM t1 group by t1.b having
count(*) > ALL (SELECT COUNT(*) FROM t2 WHERE t2.a=1 GROUP By t2.b)";
EXECUTE my_stmt;
EXECUTE my_stmt;
deallocate prepare my_stmt;
drop table t1,t2;

# End of 4.1 tests

CREATE TABLE t1 (
  school_name varchar(45) NOT NULL,
  country varchar(45) NOT NULL,    
  funds_requested float NOT NULL,
  schooltype varchar(45) NOT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

insert into t1 values ("the school", "USA", 1200, "Human");

select count(country) as countrycount, sum(funds_requested) as smcnt,
       country, (select sum(funds_requested) from t1) as total_funds
from t1
group by country;

drop table t1;

#
# BUG#14342: wrong placement of subquery internals in complex queries
#
CREATE TABLE `t1` (
  `t3_id` int NOT NULL,
  `t1_id` int NOT NULL,
  PRIMARY KEY  (`t1_id`)
);
CREATE TABLE `t2` (
  `t2_id` int NOT NULL,
  `t1_id` int NOT NULL,
  `b` int NOT NULL,
  PRIMARY KEY  (`t2_id`),
  UNIQUE KEY `idx_t2_t1_b` (`t1_id`,`b`)
) ENGINE=InnoDB;
CREATE TABLE `t3` (
  `t3_id` int NOT NULL
);
INSERT INTO `t3` VALUES (3);
select
  (SELECT rs.t2_id
   FROM t2 rs
   WHERE rs.t1_id=
     (SELECT lt.t1_id
      FROM t1 lt
      WHERE lt.t3_id=a.t3_id)
   ORDER BY b DESC LIMIT 1)
from t3 AS a;
# repeat above query in SP
--disable_warnings
DROP PROCEDURE IF EXISTS p1;
--enable_warnings
delimiter //;
create procedure p1()
begin
  declare done int default 3;
  repeat
    select
      (SELECT rs.t2_id
       FROM t2 rs
       WHERE rs.t1_id=
         (SELECT lt.t1_id
          FROM t1 lt
          WHERE lt.t3_id=a.t3_id)
       ORDER BY b DESC LIMIT 1) as x
    from t3 AS a;
    set done= done-1;
  until done <= 0 end repeat;
end//
delimiter ;//
call p1();
call p1();
call p1();
drop procedure p1;
drop tables t1,t2,t3;

--echo #
--echo # Bug #58756
--echo # Crash in heap_rrnd on query with HAVING ... IN (subquery) + LIMIT
--echo #

CREATE TABLE t1 (
  col_time_key time DEFAULT NULL,
  col_datetime_key datetime DEFAULT NULL,
  col_varchar_nokey varchar(1) DEFAULT NULL,
  KEY col_time_key (col_time_key),
  KEY col_datetime_key (col_datetime_key)
) ENGINE=InnoDB DEFAULT CHARSET=latin1;

INSERT INTO t1 VALUES ('17:53:30','2005-11-10 12:40:29','h');
INSERT INTO t1 VALUES ('11:35:49','2009-04-25 00:00:00','b');
INSERT INTO t1 VALUES (NULL,'2002-11-27 00:00:00','s');
INSERT INTO t1 VALUES ('06:01:40','2004-01-26 20:32:32','e');
INSERT INTO t1 VALUES ('05:45:11','2007-10-26 11:41:40','j');
INSERT INTO t1 VALUES ('00:00:00','2005-10-07 00:00:00','e');
INSERT INTO t1 VALUES ('00:00:00','2000-07-15 05:00:34','f');
INSERT INTO t1 VALUES ('06:11:01','2000-04-03 16:33:32','v');
INSERT INTO t1 VALUES ('13:02:46',NULL,'x');
INSERT INTO t1 VALUES ('21:44:25','2001-04-25 01:26:12','m');
INSERT INTO t1 VALUES ('22:43:58','2000-12-27 00:00:00','c');

CREATE TABLE t2 (
  col_time_key time DEFAULT NULL,
  col_datetime_key datetime DEFAULT NULL,
  col_varchar_nokey varchar(1) DEFAULT NULL,
  KEY col_time_key (col_time_key),
  KEY col_datetime_key (col_datetime_key)
) ENGINE=InnoDB DEFAULT CHARSET=latin1;

INSERT INTO t2 VALUES ('11:28:45','2004-10-11 18:13:16','w');

SELECT col_time_key, col_datetime_key
FROM 
( SELECT * FROM t1 ) AS table1 
HAVING ( 'r' , 'e' ) IN 
  ( SELECT col_varchar_nokey , col_varchar_nokey FROM t2 )
ORDER BY col_datetime_key 
LIMIT 10;

DROP TABLE t1;
DROP TABLE t2;

--echo # End of Bug #58756

--echo #
--echo # Bug#60085 crash in Item::save_in_field() with time data type
--echo #

CREATE TABLE t1(a date, b int, unique(b), unique(a), key(b)) engine=innodb;
INSERT INTO t1 VALUES ('2011-05-13', 0);
SELECT * FROM t1 WHERE b < (SELECT CAST(a as date) FROM t1 GROUP BY a); 
DROP TABLE t1;

--echo #
--echo # Bug #11766300  59387: FAILING ASSERTION: CURSOR->POS_STATE == 1997660512 (BTR_PCUR_IS_POSITIONE
--echo #

CREATE TABLE t1 (a INT) ENGINE=INNODB;
INSERT INTO t1 VALUES (0);
CREATE TABLE t2 (d BINARY(2), PRIMARY KEY (d(1)), UNIQUE KEY (d)) ENGINE=INNODB;

SELECT 1 FROM t1 WHERE NOT EXISTS
(SELECT 1 FROM t2 WHERE d = (SELECT d FROM t2 WHERE a >= 1) ORDER BY d);

EXPLAIN SELECT 1 FROM t1 WHERE NOT EXISTS
(SELECT 1 FROM t2 WHERE d = (SELECT d FROM t2 WHERE a >= 1) ORDER BY d);

DROP TABLE t2;

CREATE TABLE t2 (b INT, c INT, UNIQUE KEY (b), UNIQUE KEY (b, c )) ENGINE=INNODB;
INSERT INTO t2 VALUES (1, 1);

SELECT 1 FROM t1
WHERE a != (SELECT 1 FROM t2 WHERE a <=> b OR a > '' AND 6 = 7 ORDER BY b, c);

DROP TABLE t1, t2;

--echo #
--echo # Bug #13639204 64111: CRASH ON SELECT SUBQUERY WITH NON UNIQUE
--echo # INDEX
--echo #
CREATE TABLE t1 (
id int
) ENGINE=InnoDB;
INSERT INTO t1 (id) VALUES (11);

CREATE TABLE t2 (
t1_id int,
position int,
KEY t1_id (t1_id),
KEY t1_id_position (t1_id,position)
) ENGINE=InnoDB;

let $query=SELECT
(SELECT position FROM t2
WHERE t2.t1_id = t1.id
ORDER BY t2.t1_id , t2.position
LIMIT 10,1
) AS maxkey
FROM t1
LIMIT 1;

eval EXPLAIN $query;
eval $query;

DROP TABLE t1,t2;

--echo End of 5.1 tests

--echo #
--echo # lp:827416 Crash in select_describe() on EXPLAIN with DISTINCT in nested subqueries
--echo #

CREATE TABLE t3 ( b int) ENGINE=InnoDB;
CREATE TABLE t2 ( c int) ENGINE=InnoDB;
CREATE TABLE t1 ( a int NOT NULL , PRIMARY KEY (a)) ENGINE=InnoDB;

EXPLAIN SELECT *
FROM t1
WHERE t1.a = (
        SELECT SUM( c )
        FROM t2
        WHERE (SELECT DISTINCT b FROM t3) > 0);
SELECT *
FROM t1
WHERE t1.a = (
        SELECT SUM( c )
        FROM t2
        WHERE (SELECT DISTINCT b FROM t3) > 0);

DROP TABLE t1, t2, t3;

--echo #
--echo # lp:858148 Fourth crash in select_describe() with nested subqueries
--echo #

CREATE TABLE t1 ( f1 int(11)) ENGINE=InnoDB;
CREATE TABLE t2 ( f1 int(11), f2 int(11), PRIMARY KEY (f1)) ;
CREATE TABLE t3 ( f3 int(11)) ENGINE=InnoDB;

EXPLAIN
SELECT MAX( f1 ) FROM t2
WHERE f2 >= (
        SELECT SUM( f1 )
        FROM t1
        WHERE EXISTS (
                SELECT f3
                FROM t3
                GROUP BY 1
        )
);

SELECT MAX( f1 ) FROM t2
WHERE f2 >= (
        SELECT SUM( f1 )
        FROM t1
        WHERE EXISTS (
                SELECT f3
                FROM t3
                GROUP BY 1
        )
);

drop table t1, t2, t3;

--echo #
--echo # LP BUG#1006231 crash in select_describe
--echo #

create table t1(a1 int) ENGINE=InnoDB;
insert into t1 values (1);
explain
select 1 from t1 where 1 like (select 1 from t1 where 1 <=> (select 1 from t1 group by a1));
select 1 from t1 where 1 like (select 1 from t1 where 1 <=> (select 1 from t1 group by a1));
drop table t1;

--echo #
--echo # MDEV-3988 crash in create_tmp_table
--echo #

drop table if exists `t1`,`t2`;
create table `t1`(`a` char(1) character set utf8)engine=innodb;
create table `t2`(`b` char(1) character set utf8)engine=memory;
select distinct (select 1 from `t2` where `a`) `d2` from `t1`;
select distinct (select 1 from `t2` where `a`) `d2`, a from `t1`;
select distinct a, (select 1 from `t2` where `a`) `d2` from `t1`;
select distinct (1 + (select 1 from `t2` where `a`)) `d2` from `t1`;

drop table t1,t2;

--echo #
--echo # MDEV-4042: Assertion `table->key_read == 0' fails in close_thread_table on EXPLAIN with GROUP BY and HAVING in EXISTS SQ, 
--echo # MDEV-4536: ...sql/sql_base.cc:1598: bool close_thread_table(THD*, TABLE**): Assertion `table->key_read == 0' failed.
CREATE TABLE t1 (a INT) ENGINE=InnoDB;
CREATE TABLE t2 (b INT PRIMARY KEY, c INT) ENGINE=InnoDB;
CREATE TABLE t3 (d INT) ENGINE=InnoDB;

EXPLAIN 
SELECT * FROM t1 WHERE EXISTS ( SELECT b FROM t2, t3 GROUP BY b HAVING b != 3 );
SELECT * FROM t1 WHERE EXISTS ( SELECT b FROM t2, t3 GROUP BY b HAVING b != 3 );

DROP TABLE t1,t2,t3;

CREATE TABLE t1 (
  pk int auto_increment primary key, 
  col_int_key int(11),
  key col_int_key (col_int_key),col_varchar_key varchar(128), 
  key (col_varchar_key)
) engine=innodb;

EXPLAIN 
SELECT 1 FROM t1 AS alias1 
WHERE EXISTS ( SELECT SQ2_alias1 . col_int_key AS SQ2_field1 
               FROM ( t1 AS SQ2_alias1 RIGHT OUTER JOIN 
                      t1 AS SQ2_alias2 ON (SQ2_alias2 . col_int_key = SQ2_alias1 . col_int_key ) 
                    ) 
               GROUP BY SQ2_field1 
               HAVING SQ2_alias1 . col_int_key >= 7
             );

SELECT 1 FROM t1 AS alias1 
WHERE EXISTS ( SELECT SQ2_alias1 . col_int_key AS SQ2_field1 
               FROM ( t1 AS SQ2_alias1 RIGHT OUTER JOIN 
                      t1 AS SQ2_alias2 ON (SQ2_alias2 . col_int_key = SQ2_alias1 . col_int_key ) 
                    ) 
               GROUP BY SQ2_field1 
               HAVING SQ2_alias1 . col_int_key >= 7
             );
drop table t1;

set optimizer_switch=@subselect_innodb_tmp;

--echo #
--echo # MDEV-9635:Server crashes in part_of_refkey  or assertion
--echo # `!created && key_to_save < (int)s->keys' failed in
--echo # TABLE::use_index(int) or with join_cache_level>2
--echo #

SET join_cache_level=3;

CREATE TABLE t1 (f1 VARCHAR(1024)) ENGINE=InnoDB;
CREATE ALGORITHM=TEMPTABLE VIEW v1 AS SELECT * FROM t1;

CREATE TABLE t2 (f2 VARCHAR(4)) ENGINE=InnoDB;
INSERT INTO t2 VALUES ('foo'),('bar');

SELECT * FROM v1, t2 WHERE ( f1, f2 ) IN ( SELECT f1, f1 FROM t1 );

set join_cache_level = default;
drop view v1;
drop table t1,t2;

--echo #
--echo # MDEV-10693: cost-based choice between materialization and in-to-exists
--echo #             for a subquery from the expression used in ref access 
--echo #

--source include/have_innodb.inc
 
CREATE TABLE t1 (i1 INT PRIMARY KEY) ENGINE=InnoDB;
INSERT INTO t1 VALUES (1),(2);
 
CREATE TABLE t2 (i2 INT) ENGINE=InnoDB;
 
CREATE TABLE t3 (i3 INT PRIMARY KEY) ENGINE=InnoDB;
INSERT INTO t3 VALUES (3);
 
SELECT * FROM t1
  WHERE NULL IN ( SELECT i2 FROM t2 
                    WHERE i1 IN ( i2 IN ( SELECT i3 FROM t3 ) ) AND i2 = 2 );

DROP TABLE t1,t2,t3;

--echo #
--echo # MDEV-6041: ORDER BY+subqueries: subquery_table.key=outer_table.col is not recongized as binding
--echo #
create table t1(a int) engine=innodb;
insert into t1 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);

create table t2(
  id int primary key,
  key1 int,
  col1 int,
  key(key1)
) engine=innodb;

insert into t2 
  select 
    A.a + B.a*10 + C.a*100 + D.a* 1000, 
    A.a + 10*B.a, 
    123456 
from t1 A, t1 B, t1 C, t1 D;

--echo # Table tsubq:
--echo #   - must use 'ref' (not 'index'), and must not use 'Using filesort'
--echo #   - shows a bad estimate for 'rows' (but I'm not sure if one can do better w/o histograms)
explain select 
   (SELECT 
      concat(id, '-', key1, '-', col1)
    FROM t2
    WHERE t2.key1 = t1.a
    ORDER BY t2.id ASC LIMIT 1)
from 
  t1;

--echo #
--echo # MDEV-6081: ORDER BY+ref(const): selectivity is very incorrect (MySQL Bug#14338686)
--echo #

alter table t2 add key2 int;
update t2 set key2=key1;
alter table t2 add key(key2);
analyze table t2;
flush tables;
--echo # Table tsubq must use 'ref' + Using filesort (not 'index' w/o filesort)
--replace_column 9 #
explain select 
   (SELECT 
      concat(id, '-', key1, '-', col1)
    FROM t2
    WHERE t2.key1 = t1.a
    ORDER BY t2.key2 ASC LIMIT 1)
from 
  t1;

drop table t1,t2;

--echo #
--echo # mdev-12931: semi-join in ON expression of STRAIGHT_JOIN 
--echo #             joining a base table and a mergeable derived table
--echo #

CREATE TABLE t1 (f1 int) ENGINE=InnoDB;
INSERT INTO t1 VALUES (3),(2);

CREATE TABLE t2 (f2 int) ENGINE=InnoDB;
INSERT INTO t2 VALUES (1),(4);

CREATE TABLE t3 (f3 int) ENGINE=InnoDB;
INSERT INTO t3 VALUES (5),(6);

CREATE TABLE t4 (f4 int) ENGINE=InnoDB;
INSERT INTO t4 VALUES (1),(8);

SELECT * 
FROM t1 
     INNER JOIN 
     ( t2 STRAIGHT_JOIN ( SELECT * FROM t3 ) AS sq
       ON ( 1 IN ( SELECT f4 FROM t4 ) ) )
     ON ( f1 >= f2 );

EXPLAIN EXTENDED
SELECT * 
FROM t1 
     INNER JOIN 
     ( t2 STRAIGHT_JOIN ( SELECT * FROM t3 ) AS sq
       ON ( 1 IN ( SELECT f4 FROM t4 ) ) )
     ON ( f1 >= f2 );

DROP TABLE t1,t2,t3,t4;