#
# MDEV-15738 Server crashes in my_strcasecmp_utf8 on query from I_S with UNION
# executed as PS
#

PREPARE stmt1 FROM "
SELECT table_name FROM information_schema.tables
WHERE table_name = 't1_first'
UNION ALL
SELECT table_name FROM information_schema.tables
WHERE table_name = 't1_second'";
execute stmt1;
execute stmt1;

create or replace table t1 (a int primary key, table_name char(40));
insert into t1 values(1,"t1_first");
insert into t1 values(2,"t1_second");

PREPARE stmt2 FROM "
SELECT table_name FROM t1
WHERE table_name = 't1_first'
UNION ALL
SELECT table_name FROM t1
WHERE table_name = 't1_second'";

execute stmt2;
execute stmt2;
flush tables;
execute stmt2;
alter table t1 add column b int;
execute stmt2;
execute stmt2;
drop table t1;
--error ER_NO_SUCH_TABLE
execute stmt2;
create or replace table t1 (a int primary key, table_name char(40));
insert into t1 values(1,"t1_first");
execute stmt2;

deallocate prepare stmt1;
deallocate prepare stmt2;
drop table t1;

--echo #
--echo # MDEV-25808 PREPARE/EXECUTE makes signed integer out of unsigned
--echo #
prepare p1 from 'select concat(?)';
execute p1 using 17864960750176564435;
prepare p1 from 'select SQRT(?) is not null';
execute p1 using 17864960750176564435;

--echo #
--echo # End of 10.3 tests
--echo #

--echo #
--echo # MDEV-17869 AddressSanitizer: use-after-poison in Item_change_list::rollback_item_tree_changes
--echo #
create table t1 (pk int, v1 varchar(1));
insert t1 values (1,'v'),(2,'v'),(3,'c');
create table t2 (pk int, v1 varchar(1));
insert t2 values (1,'x');
create table t3 (pk int, i1 int, v1 varchar(1));
insert t3 values (10,8,9);
execute immediate 'select straight_join 1 from (t1 join t2 on (t1.v1 = t2.v1))
where (3, 6) in (select tc.pk,  t3.i1 from (t3 join t1 as tc on (tc.v1 = t3.v1)) having tc.pk > 1 );';
drop table t1, t2, t3;

--echo #
--echo # End of 10.4 tests
--echo #

--echo #
--echo # MDEV-9938 Prepared statement return wrong result (missing row)
--echo #

CREATE TABLE t1 (a_id INT AUTO_INCREMENT PRIMARY KEY, a_text VARCHAR(20));
CREATE TABLE t2 (b_id INT AUTO_INCREMENT PRIMARY KEY, b_a_id INT);

INSERT INTO t1 VALUES (NULL, 'word1');
INSERT INTO t2 VALUES (NULL, 1), (NULL, NULL);

PREPARE q FROM 'SELECT * FROM t2
 LEFT JOIN t1 ON (t1.a_id = t2.b_a_id)
WHERE ((? IS NULL) OR (t1.a_text = ?))';

SET @var = 'word1';
--echo expect row count 1
EXECUTE q USING @var, @var;
--echo expect row count = 2
EXECUTE q USING @nul, @nul;

PREPARE q2 FROM 'SELECT * FROM t2
 LEFT JOIN t1 ON (t1.a_id = t2.b_a_id)
WHERE ((? IS NULL) OR (t1.a_text = ?))';

--echo expect row count 2
SET @var = 'word1';
EXECUTE q2 USING @nul, @nul;

deallocate prepare q;
deallocate prepare q2;
drop table t1,t2;

--echo #
--echo # End of 10.6 tests
--echo #