#
# Tets of cost-based choice between the materialization and in-to-exists
# subquery execution strategies (MWL#89)
#

--disable_warnings
drop table if exists t1, t2, t1_1024, t2_1024;
drop procedure if exists make_t1_indexes;
drop procedure if exists make_t2_indexes;
drop procedure if exists remove_t1_indexes;
drop procedure if exists remove_t2_indexes;
drop procedure if exists add_materialization_data;
drop procedure if exists delete_materialization_data;
drop procedure if exists set_all_columns_not_null;
drop procedure if exists set_all_columns_nullable;
--enable_warnings

create table t1 (a1 char(8), a2 char(8), a3 char(8), a4 int);
insert into t1 values ('1 - 00', '2 - 00', '3 - 00', 0);
insert into t1 values ('1 - 01', '2 - 01', '3 - 01', 1);

create table t2 (b1 char(8), b2 char(8), b3 char(8), b4 int);
insert into t2 values ('1 - 01', '2 - 01', '3 - 01', 1);
insert into t2 values ('1 - 01', '2 - 01', '3 - 02', 2);
insert into t2 values ('1 - 02', '2 - 02', '3 - 03', 3);
insert into t2 values ('1 - 02', '2 - 02', '3 - 04', 4);
insert into t2 values ('1 - 03', '2 - 03', '3 - 05', 5);

create table t1_1024 (a1 blob(1024), a2 blob(1024));
insert into t1_1024 values (concat('1 - 00', repeat('x', 1018)), concat('2 - 00', repeat('x', 1018)));
insert into t1_1024 values (concat('1 - 01', repeat('x', 1018)), concat('2 - 01', repeat('x', 1018)));

create table t2_1024 (b1 blob(1024), b2 blob(1024));
insert into t2_1024 values (concat('1 - 01', repeat('x', 1018)), concat('2 - 01', repeat('x', 1018)));
insert into t2_1024 values (concat('1 - 02', repeat('x', 1018)), concat('2 - 02', repeat('x', 1018)));
insert into t2_1024 values (concat('1 - 03', repeat('x', 1018)), concat('2 - 03', repeat('x', 1018)));
insert into t2_1024 values (concat('1 - 04', repeat('x', 1018)), concat('2 - 04', repeat('x', 1018)));

delimiter |;
create procedure make_t1_indexes()
begin
  create index it1i1 on t1 (a1);
  create index it1i2 on t1 (a2);
  create index it1i3 on t1 (a1, a2);
  create index it1_1024i1 on t1_1024 (a1(6));
  create index it1_1024i2 on t1_1024 (a2(6));
  create index it1_1024i3 on t1_1024 (a1(6), a2(6));
end|

create procedure make_t2_indexes()
begin
  create index it2i1 on t2 (b1);
  create index it2i2 on t2 (b2);
  create index it2i3 on t2 (b1, b2);
  create unique index it2i4 on t2 (b1, b2, b3);
  create index it2_1024i1 on t2_1024 (b1(6));
  create index it2_1024i2 on t2_1024 (b2(6));
  create index it2_1024i3 on t2_1024 (b1(6), b2(6));
end|

create procedure remove_t1_indexes()
begin
  drop index it1i1 on t1;
  drop index it1i2 on t1;
  drop index it1i3 on t1;
  drop index it1_1024i1 on t1_1024;
  drop index it1_1024i2 on t1_1024;
  drop index it1_1024i3 on t1_1024;
end|

create procedure remove_t2_indexes()
begin
  drop index it2i1 on t2;
  drop index it2i2 on t2;
  drop index it2i3 on t2;
  drop index it2i4 on t2;
  drop index it2_1024i1 on t2_1024;
  drop index it2_1024i2 on t2_1024;
  drop index it2_1024i3 on t2_1024;
end|

create procedure add_materialization_data()
begin
insert into t1 values ('1 - 03', '2 - 03', '3 - 03', 3);
insert into t1 values ('1 - 04', '2 - 04', '3 - 04', 4);
insert into t1 values ('1 - 05', '2 - 05', '3 - 05', 5);
insert into t1 values ('1 - 06', '2 - 06', '3 - 06', 6);
insert into t1 values ('1 - 07', '2 - 07', '3 - 07', 7);
insert into t1_1024 values (concat('1 - 03', repeat('x', 1018)), concat('2 - 03', repeat('x', 1018)));
end|

create procedure delete_materialization_data()
begin
delete from t1 where a1 >= '1 - 03';
delete from t1_1024 where a1 >= '1 - 03';
end|

create procedure set_all_columns_not_null()
begin
alter table t1 modify a1 char(8) not null, modify a2 char(8) not null, modify a3 char(8) not null;
alter table t2 modify b1 char(8) not null, modify b2 char(8) not null, modify b3 char(8) not null;
end|

create procedure set_all_columns_nullable()
begin
alter table t1 modify a1 char(8) null, modify a2 char(8) null, modify a3 char(8) null;
alter table t2 modify b1 char(8) null, modify b2 char(8) null, modify b3 char(8) null;
end|

delimiter ;|
-- echo

-- echo /******************************************************************************
-- echo 1. Both materialization and in-to-exists are ON, make a cost-based choice.
-- echo ******************************************************************************/
set @@optimizer_switch='materialization=on,in_to_exists=on';
-- echo 
-- echo /* 1.1 In-to-exists is cheaper */
call make_t1_indexes();

-- echo /* 1.1.1 non-indexed table access */
-- source include/subselect_mat_cost.inc

-- echo /* 1.1.2 indexed table access, nullabale columns. */
call make_t2_indexes();
-- source include/subselect_mat_cost.inc

-- echo /* 1.1.3 indexed table access, non-nullabale columns. */
call set_all_columns_not_null();
-- source include/subselect_mat_cost.inc
call set_all_columns_nullable();

-- echo 
-- echo /* 1.2 Materialization is cheaper */
# make materialization cheaper
call add_materialization_data();
call remove_t1_indexes();

-- echo /* 1.2.1 non-indexed table access */
call remove_t2_indexes();
-- source include/subselect_mat_cost.inc

-- echo /* 1.2.2 indexed table access, nullabale columns. */
call make_t2_indexes();
-- source include/subselect_mat_cost.inc

-- echo /* 1.2.3 indexed table access, non-nullabale columns. */
call set_all_columns_not_null();
-- source include/subselect_mat_cost.inc
call set_all_columns_nullable();


insert into t1 values ('1 - 02', '2 - 02', '3 - 02', 2);

-- echo /******************************************************************************
-- echo 2. Materialization is OFF, in-to-exists is ON, materialization is cheaper.
-- echo ******************************************************************************/
set @@optimizer_switch='materialization=off,in_to_exists=on';

-- echo /* 2.1 non-indexed table access */
call remove_t2_indexes();
-- source include/subselect_mat_cost.inc

-- echo /* 2.2 indexed table access, nullabale columns. */
call make_t2_indexes();
-- source include/subselect_mat_cost.inc

-- echo /* 2.3 indexed table access, non-nullabale columns. */
call set_all_columns_not_null();
-- source include/subselect_mat_cost.inc
call set_all_columns_nullable();


-- echo /******************************************************************************
-- echo 3. Materialization is ON, in-to-exists is OFF, in-to-exists is cheaper.
-- echo ******************************************************************************/
set @@optimizer_switch='materialization=on,in_to_exists=off';
# make IN-TO-EXISTS cheaper
call delete_materialization_data();
call make_t1_indexes();

-- echo /* 3.1 non-indexed table access */
call remove_t2_indexes();
-- source include/subselect_mat_cost.inc

-- echo /* 3.2 indexed table access, nullabale columns. */
call make_t2_indexes();
-- source include/subselect_mat_cost.inc

-- echo /* 3.3 indexed table access, non-nullabale columns. */
call set_all_columns_not_null();
-- source include/subselect_mat_cost.inc
call set_all_columns_nullable();


drop procedure make_t1_indexes;
drop procedure make_t2_indexes;
drop procedure remove_t1_indexes;
drop procedure remove_t2_indexes;
drop procedure add_materialization_data;
drop procedure delete_materialization_data;
drop procedure set_all_columns_not_null;
drop procedure set_all_columns_nullable;
drop table t1, t2, t1_1024, t2_1024;

--echo #
--echo # LP BUG#643424 valgrind warning in choose_subquery_plan()
--echo #

CREATE TABLE t1 (
  pk int(11) NOT NULL AUTO_INCREMENT,
  c1 int(11) DEFAULT NULL,
  c2 int(11) DEFAULT NULL,
  PRIMARY KEY (pk),
  KEY c2 (c2));

INSERT INTO t1 VALUES (1,NULL,2);
INSERT INTO t1 VALUES (2,7,9);
INSERT INTO t1 VALUES (9,NULL,8);

CREATE TABLE t2 (
  pk int(11) NOT NULL AUTO_INCREMENT,
  c1 int(11) DEFAULT NULL,
  c2 int(11) DEFAULT NULL,
  PRIMARY KEY (pk),
  KEY c2 (c2));

INSERT INTO t2 VALUES (1,1,7);

set @save_optimizer_switch=@@optimizer_switch;
set @@optimizer_switch='materialization=on,in_to_exists=on,semijoin=off';

SELECT pk FROM t1 WHERE (c2, c1) IN (SELECT c2, c2 FROM t2);

set session optimizer_switch=@save_optimizer_switch;

drop table t1, t2;


--echo #
--echo # LP BUG#652727 Crash in create_ref_for_key()
--echo #

CREATE TABLE t2 (
  pk int(11) NOT NULL AUTO_INCREMENT,
  c1 int(11) DEFAULT NULL,
  PRIMARY KEY (pk));

INSERT INTO t2 VALUES (10,7);
INSERT INTO t2 VALUES (11,1);
INSERT INTO t2 VALUES (17,NULL);

CREATE TABLE t1 (
  pk int(11) NOT NULL AUTO_INCREMENT,
  c1 int(11) DEFAULT NULL,
  PRIMARY KEY (pk));

INSERT INTO t1 VALUES (15,1);
INSERT INTO t1 VALUES (19,NULL);

CREATE TABLE t3 (c2 int(11) DEFAULT NULL, KEY c2 (c2));
INSERT INTO t3 VALUES (1);

set @save_optimizer_switch=@@optimizer_switch;
set @@optimizer_switch='materialization=on,in_to_exists=on,semijoin=off';

SELECT c2
FROM t3
WHERE (2, 6) IN (SELECT t1.c1, t1.c1 FROM t1 STRAIGHT_JOIN t2 ON t2.pk = t1.pk);

set session optimizer_switch=@save_optimizer_switch;
drop table t1, t2, t3;


--echo #
--echo # LP BUG#641245 Crash in Item_equal::contains
--echo #

CREATE TABLE t1 (
  pk int(11) NOT NULL AUTO_INCREMENT,
  c1 int(11) DEFAULT NULL,
  c2 int(11) DEFAULT NULL,
  c3 varchar(1) DEFAULT NULL,
  c4 varchar(1) DEFAULT NULL,
  PRIMARY KEY (pk),
  KEY c2 (c2),
  KEY c3 (c3,c2));

INSERT INTO t1 VALUES (10,7,8,'v','v');
INSERT INTO t1 VALUES (11,1,9,'r','r');
INSERT INTO t1 VALUES (12,5,9,'a','a');

create table t1a like t1;
insert into t1a select * from t1;

create table t1b like t1;
insert into t1b select * from t1;

CREATE TABLE t2 (
  pk int(11) NOT NULL AUTO_INCREMENT,
  c1 int(11) DEFAULT NULL,
  c2 int(11) DEFAULT NULL,
  c3 varchar(1) DEFAULT NULL,
  c4 varchar(1) DEFAULT NULL,
  PRIMARY KEY (pk),
  KEY c2 (c2),
  KEY c3 (c3,c2));

INSERT INTO t2 VALUES (1,NULL,2,'w','w');
INSERT INTO t2 VALUES (2,7,9,'m','m');

set @@optimizer_switch='materialization=off,in_to_exists=on,semijoin=off';

let $query=
SELECT pk
FROM t1
WHERE c1 IN
      (SELECT t1a.c1
       FROM (t1b JOIN t2 ON t2.c3 = t1b.c4) LEFT JOIN
            t1a ON (t1a.c2 = t1b.pk AND 2)
       WHERE t1.pk) ;
eval EXPLAIN EXTENDED $query;
eval $query;

DROP TABLE t1, t1a, t1b, t2;

--echo #
--echo # LP BUG#714808 Assertion `outer_lookup_keys <= outer_record_count'
--echo # failed with materialization

CREATE TABLE t1 ( pk int(11), PRIMARY KEY (pk)) ;
CREATE TABLE t2 ( f2 int(11)) ;
CREATE TABLE t3 ( f1 int(11), f3 varchar(1), KEY (f1)) ;
INSERT INTO t3 VALUES (7,'f');

set @@optimizer_switch='materialization=on,in_to_exists=on,semijoin=off';

EXPLAIN
SELECT t1.*
FROM t3 RIGHT JOIN t1 ON t1.pk = t3.f1
WHERE t3.f3 OR ( 3 ) IN ( SELECT f2 FROM t2 );

SELECT t1.*
FROM t3 RIGHT JOIN t1 ON t1.pk = t3.f1
WHERE t3.f3 OR ( 3 ) IN ( SELECT f2 FROM t2 );

drop table t1,t2,t3;

--echo #
--echo # LP BUG#714999 Second crash in select_describe() with nested subqueries
--echo #

CREATE TABLE t1 ( pk int(11)) ;
INSERT INTO t1 VALUES (29);

CREATE TABLE t2 ( f1 varchar(1)) ;
INSERT INTO t2 VALUES ('f'),('d');

CREATE TABLE t3 ( f2 varchar(1)) ;

EXPLAIN SELECT f2 FROM t3 WHERE (
        SELECT MAX( pk ) FROM t1
        WHERE EXISTS (
                SELECT DISTINCT f1
                FROM t2
        )
) IS NULL ;

drop table t1, t2;

--echo #
--echo # LP BUG#715034 Item_sum_distinct::clear(): Assertion `tree != 0' failed
--echo #

CREATE TABLE t2 ( f2 int(11)) ;

CREATE TABLE t1 ( f3 int(11), KEY (f3)) ;
INSERT INTO t1 VALUES (6),(4);

EXPLAIN
SELECT * FROM (SELECT * FROM t2) AS a2
WHERE (SELECT distinct SUM(distinct f3 ) FROM t1);

insert into t2 values (1),(2);
EXPLAIN
SELECT * FROM (SELECT * FROM t2) AS a2
WHERE (SELECT distinct SUM(distinct f3 ) FROM t1);