mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-15 02:41:59 +00:00
22 lines
670 B
SQL
22 lines
670 B
SQL
drop table if exists t;
|
|
|
|
create table t (i int, j int, k int, projection p (select * order by j)) engine MergeTree order by i settings index_granularity = 1;
|
|
|
|
insert into t select number, number, number from numbers(10);
|
|
|
|
set allow_experimental_projection_optimization = 1, max_rows_to_read = 3;
|
|
|
|
select * from t where i < 5 and j in (1, 2);
|
|
|
|
drop table t;
|
|
|
|
drop table if exists test;
|
|
|
|
create table test (name String, time Int64) engine MergeTree order by time;
|
|
|
|
insert into test values ('hello world', 1662336000241);
|
|
|
|
select count() from (select fromUnixTimestamp64Milli(time, 'UTC') time_fmt, name from test where time_fmt > '2022-09-05 00:00:00');
|
|
|
|
drop table test;
|