ClickHouse/dbms/tests/queries/0_stateless/00736_disjunction_optimisation.sql
2018-10-12 19:16:27 +03:00

22 lines
1013 B
SQL

DROP TABLE IF EXISTS test.bug;
CREATE TABLE IF NOT EXISTS test.bug(k UInt64, s UInt64) ENGINE = Memory;
insert into test.bug values(1,21),(1,22),(1,23),(2,21),(2,22),(2,23),(3,21),(3,22),(3,23);
set optimize_min_equality_disjunction_chain_length = 2;
select * from test.bug;
select * from test.bug where (k =1 or k=2 or k =3) and (s=21 or s=22 or s=23);
select * from (select * from test.bug where k=1 or k=2 or k=3) where (s=21 or s=22 or s=23);
select k, (k=1 or k=2 or k=3), s, (s=21), (s=21 or s=22), (s=21 or s=22 or s=23) from test.bug;
select s, (s=21 or s=22 or s=23) from test.bug;
set optimize_min_equality_disjunction_chain_length = 3;
select * from test.bug;
select * from test.bug where (k =1 or k=2 or k =3) and (s=21 or s=22 or s=23);
select * from (select * from test.bug where k=1 or k=2 or k=3) where (s=21 or s=22 or s=23);
select k, (k=1 or k=2 or k=3), s, (s=21), (s=21 or s=22), (s=21 or s=22 or s=23) from test.bug;
select s, (s=21 or s=22 or s=23) from test.bug;
DROP TABLE test.bug;