#
# MDEV-33971 Using NAME_CONST() changes the plan
#

create table t1 (a int, b int);
insert into t1 values (1,1),(2,2);
explain format=json
select * from t1 where a=name_const('varname',1);
explain format=json
select * from t1 left join t1 as t2 on t1.a=name_const('varname',1) and t1.b=t2.b;


create table t2 (
  a varchar(100) collate utf8_unicode_ci,
  b int
);
insert into t2 values ('foo', 1),('bar', 1);
create procedure p1(var1 varchar(10))
  update t2 set b=b+1 where a=var1;
call p1('foo');
call p1('foo');
call p1('foo');
select * from t2;


create table t3 (
  a varchar(100) collate utf8_unicode_ci,
  b int
);
insert into t3 values ('foo', 1),('bar', 1);
select * from t3;
explain format=json
update t3 set b=b+1 where a= NAME_CONST('var1',_latin1'foo' COLLATE 'latin1_swedish_ci');
select * from t3 where a= NAME_CONST('var1',_latin1'foo' COLLATE 'latin1_swedish_ci');


drop procedure p1;
drop table t1, t2, t3;