mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-10-18 22:40:50 +00:00
17 lines
551 B
SQL
17 lines
551 B
SQL
drop table if exists A1;
|
|
drop table if exists A_M;
|
|
CREATE TABLE A1( a DateTime ) ENGINE = MergeTree ORDER BY tuple();
|
|
CREATE TABLE A_M as A1 ENGINE = Merge(currentDatabase(), '^A1$');
|
|
insert into A1(a) select now();
|
|
|
|
set optimize_move_to_prewhere=0;
|
|
|
|
SELECT tupleElement(arrayJoin([(1, 1)]), 1) FROM A_M PREWHERE tupleElement((1, 1), 1) =1;
|
|
|
|
SELECT tupleElement(arrayJoin([(1, 1)]), 1) FROM A_M WHERE tupleElement((1, 1), 1) =1;
|
|
|
|
SELECT tupleElement(arrayJoin([(1, 1)]), 1) FROM A1 PREWHERE tupleElement((1, 1), 1) =1;
|
|
|
|
drop table A1;
|
|
drop table A_M;
|