#
# Hash semi-join regression tests
# (WL#1110: Subquery optimization: materialization)
#


# force the use of materialization
set @@optimizer_switch='semijoin=off';

--source t/subselect_sj_mat.test

set @@optimizer_switch=default;
#
# Test that the contents of the temp table of a materialized subquery is
# cleaned up between PS re-executions.
#

create table t0 (a int);
insert into t0 values (0),(1),(2);
create table t1 (a int);
insert into t1 values (0),(1),(2);
explain select a, a in (select a from t1) from t0;
select a, a in (select a from t1) from t0;
prepare s from 'select a, a in (select a from t1) from t0';
execute s;
update t1 set a=123;
execute s;
drop table t0, t1;


--echo #
--echo # LPBUG#609121: RQG: wrong result on aggregate + NOT IN + HAVING and
--echo # partial_match_table_scan=on
--echo #

create table t1 (c1 int);
create table t2 (c2 int);
insert into t1 values (1);
insert into t2 values (2);

set @@optimizer_switch='semijoin=off';

EXPLAIN
SELECT SUM(c1) c1_sum FROM t1 WHERE c1 IN (SELECT c2 FROM t2);
SELECT SUM(c1) c1_sum FROM t1 WHERE c1 IN (SELECT c2 FROM t2);
EXPLAIN
SELECT SUM(c1) c1_sum FROM t1 WHERE c1 IN (SELECT c2 FROM t2) HAVING c1_sum;
SELECT SUM(c1) c1_sum FROM t1 WHERE c1 IN (SELECT c2 FROM t2) HAVING c1_sum;

drop table t1, t2;

--echo #
--echo # BUG#52344 - Subquery materialization: 
--echo #  	     Assertion if subquery in on-clause of outer join
--echo #

set @@optimizer_switch='semijoin=off';

CREATE TABLE t1 (i INTEGER);
INSERT INTO t1 VALUES (10);

CREATE TABLE t2 (j INTEGER);
INSERT INTO t2 VALUES (5);

CREATE TABLE t3 (k INTEGER);

EXPLAIN
SELECT i FROM t1 LEFT JOIN t2 ON (j) IN (SELECT k FROM t3);
SELECT i FROM t1 LEFT JOIN t2 ON (j) IN (SELECT k FROM t3);

EXPLAIN
SELECT i FROM t1 LEFT JOIN t2 ON (j) IN (SELECT max(k) FROM t3);
SELECT i FROM t1 LEFT JOIN t2 ON (j) IN (SELECT max(k) FROM t3);

DROP TABLE t1, t2, t3;

--echo #
--echo # LPBUG#609121: RQG: wrong result on aggregate + NOT IN + HAVING and
--echo # partial_match_table_scan=on
--echo #

CREATE TABLE t1 (c1 int);
INSERT INTO t1 VALUES (1),(2);

CREATE TABLE t2 (c2 int);
INSERT INTO t2 VALUES (10);

PREPARE st1 FROM "
SELECT *
FROM t2 LEFT JOIN (SELECT * FROM t2) t3 ON (8, 4) IN (SELECT c1, c1 FROM t1)";

EXECUTE st1;
EXECUTE st1;

DROP TABLE t1, t2;

--echo # 
--echo # Testcase backport: BUG#46548 IN-subqueries return 0 rows with materialization=on
--echo # 
CREATE TABLE t1 (
  pk int,
  a varchar(1),
  b varchar(4),
  c varchar(4),
  d varchar(4),
  PRIMARY KEY (pk)
);
INSERT INTO t1 VALUES (1,'o','ffff','ffff','ffoo'),(2,'f','ffff','ffff','ffff');

CREATE TABLE t2 LIKE t1;
INSERT INTO t2 VALUES (1,'i','iiii','iiii','iiii'),(2,'f','ffff','ffff','ffff');

SET @@optimizer_switch='default,semijoin=on,materialization=on';
EXPLAIN SELECT pk FROM t1 WHERE (a) IN (SELECT a FROM t2 WHERE pk > 0);
SELECT pk FROM t1 WHERE (a) IN (SELECT a FROM t2 WHERE pk > 0);
SELECT pk FROM t1 WHERE (b,c,d) IN (SELECT b,c,d FROM t2 WHERE pk > 0);
DROP TABLE t1, t2;