Spracherkennung für: .test vermutete Sprache: SQL {SQL[275] VHDL[115] ADA[110]} [Methode: maximale Elemente, drei Dimensionen]
--source include/have_innodb.inc
#
# MDEV-9667: Server hangs after select count(distinct name) from t2 where a=8366 and b>=5 and b<=5;
#
create table t2 (a smallint(6) not null, b int(10) not null, name varchar(20), primary key(a,b), key(name)) engine=InnoDB;
insert into t2 values (8355,3,"sanja"),(8355,4,"wlad"),(8366,5, "lawrin"),(8366,6,"markusjm");
select count(distinct name) from t2 where a=8366 and b>=5 and b<=5;
select count(distinct name) from t2 where a=8366 and b=5;
select count(distinct name) from t2 where a=8366 and b between 5 and 5.5;
select sum(distinct a) from t2 where a=8366 and b>=5 and b<=5;
select sum(distinct a) from t2 where a=8366 and b=5;
select sum(distinct a) from t2 where a=8366 and b between 5 and 5.5;
drop table t2;
[Dauer der Verarbeitung: 0.9 Sekunden, vorverarbeitet 2026-10-08]
