thevar1able/ClickHouse
1
0
Fork 0
mirror of https://github.com/ClickHouse/ClickHouse.git synced 2024-12-03 13:02:00 +00:00
Code Issues Packages Projects Releases Wiki Activity

Add a test with optimized columns from PREWHERE

Browse Source
This commit is contained in:
Azat Khuzhin 2021-10-22 00:12:30 +03:00
parent aae30a9e37
commit 874f7a5052
2 changed files with 17 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
tests/queries/0_stateless/02021_prewhere_column_optimization.reference Normal file
View File

@ -0,0 +1,7 @@
-- { echoOn }
select * from data_02021 prewhere 1 or ignore(key);
1
select * from data_02021 prewhere 1 or ignore(key) where key = 1;
1
select * from data_02021 prewhere 0 or ignore(key);
select * from data_02021 prewhere 0 or ignore(key) where key = 1;

10
tests/queries/0_stateless/02021_prewhere_column_optimization.sql Normal file
View File

@ -0,0 +1,10 @@
drop table if exists data_02021;
create table data_02021 (key Int) engine=MergeTree() order by key;
insert into data_02021 values (1);
-- { echoOn }
select * from data_02021 prewhere 1 or ignore(key);
select * from data_02021 prewhere 1 or ignore(key) where key = 1;
select * from data_02021 prewhere 0 or ignore(key);
select * from data_02021 prewhere 0 or ignore(key) where key = 1;
-- { echoOff }
drop table data_02021;