source include/have_debug.inc;
#
# BUG#21282
#
create table t1 (a int);
insert into t1 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
create table t2 (a int, key(a));
insert into t2 select 2*(A.a + 10*(B.a + 10*C.a)) from t1 A, t1 B, t1 C;

set in_predicate_conversion_threshold= 2000;

set @a="select * from t2 force index (a) where a NOT IN(0";
select count(*) from (select @a:=concat(@a, ',', a) from t2 ) Z;
set @a=concat(@a, ')');

insert into t2 values (11),(13),(15);

set @b= concat("explain ", @a);

prepare stmt1 from @b;
execute stmt1;

prepare stmt1 from @a;
execute stmt1;

set in_predicate_conversion_threshold= default;

drop table t1, t2;