mirror of
https://github.com/MariaDB/server.git
synced 2025-01-16 12:02:42 +01:00
6b9dd66f07
The testcase needs to set in_predicate_conversion_threshold which is only available in debug builds (this is subject to further discussion).
24 lines
752 B
Text
24 lines
752 B
Text
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;
|
|
count(*)
|
|
1000
|
|
set @a=concat(@a, ')');
|
|
insert into t2 values (11),(13),(15);
|
|
set @b= concat("explain ", @a);
|
|
prepare stmt1 from @b;
|
|
execute stmt1;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 SIMPLE t2 index a a 5 NULL 1003 Using where; Using index
|
|
prepare stmt1 from @a;
|
|
execute stmt1;
|
|
a
|
|
11
|
|
13
|
|
15
|
|
set in_predicate_conversion_threshold= default;
|
|
drop table t1, t2;
|