ClickHouse/tests/queries/0_stateless/01739_index_hint.reference

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2021-02-28 07:25:56 +00:00
-- { echo }
drop table if exists tbl;
create table tbl (p Int64, t Int64, f Float64) Engine=MergeTree partition by p order by t settings index_granularity=1;
insert into tbl select number / 4, number, 0 from numbers(16);
select * from tbl WHERE indexHint(t = 1) order by t;
0 0 0
0 1 0
select * from tbl WHERE indexHint(t in (select toInt64(number) + 2 from numbers(3))) order by t;
0 1 0
0 2 0
0 3 0
1 4 0
select * from tbl WHERE indexHint(p = 2) order by t;
2 8 0
2 9 0
2 10 0
2 11 0
select * from tbl WHERE indexHint(p in (select toInt64(number) - 2 from numbers(3))) order by t;
0 0 0
0 1 0
0 2 0
0 3 0
drop table tbl;
drop table if exists XXXX;
create table XXXX (t Int64, f Float64) Engine=MergeTree order by t settings index_granularity=128;
insert into XXXX select number*60, 0 from numbers(100000);
SELECT count() FROM XXXX WHERE indexHint(t = 42);
128
drop table if exists XXXX;
create table XXXX (t Int64, f Float64) Engine=MergeTree order by t settings index_granularity=8192;
insert into XXXX select number*60, 0 from numbers(100000);
SELECT count() FROM XXXX WHERE indexHint(t = toDateTime(0));
100000
drop table XXXX;