mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-09-20 16:50:48 +00:00
36 lines
1.0 KiB
SQL
36 lines
1.0 KiB
SQL
-- { 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;
|
|
|
|
select * from tbl WHERE indexHint(t in (select toInt64(number) + 2 from numbers(3))) order by t;
|
|
|
|
select * from tbl WHERE indexHint(p = 2) order by t;
|
|
|
|
select * from tbl WHERE indexHint(p in (select toInt64(number) - 2 from numbers(3))) order by t;
|
|
|
|
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);
|
|
|
|
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));
|
|
|
|
drop table XXXX;
|