thevar1able/ClickHouse
1
0
Fork 0
mirror of https://github.com/ClickHouse/ClickHouse.git synced 2024-09-21 09:10:48 +00:00
Code Issues Packages Projects Releases Wiki Activity

Test for fixed bug (#9862)

Browse Source
This commit is contained in:
Artem Zuikov 2020-03-26 12:32:54 +03:00 committed by GitHub
parent adca27cb45
commit 5b6a6b9b01
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 37 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
dbms/tests/queries/0_stateless/01101_prewhere_after_alter.reference Normal file
View File

@ -0,0 +1 @@
2a

36
dbms/tests/queries/0_stateless/01101_prewhere_after_alter.sql Normal file
View File

@ -0,0 +1,36 @@
DROP TABLE IF EXISTS test_a;
DROP TABLE IF EXISTS test_b;
CREATE TABLE test_a
(
OldColumn String DEFAULT '',
EventDate Date DEFAULT toDate(EventTime),
EventTime DateTime
) ENGINE = MergeTree(EventDate, EventTime, 8192);
CREATE TABLE test_b
(
OldColumn String DEFAULT '',
NewColumn String DEFAULT '',
EventDate Date DEFAULT toDate(EventTime),
EventTime DateTime
) ENGINE = MergeTree(EventDate, EventTime, 8192);
INSERT INTO test_a (OldColumn, EventTime) VALUES('1', now());
INSERT INTO test_b (OldColumn, NewColumn, EventTime) VALUES('1', '1a', now());
INSERT INTO test_b (OldColumn, NewColumn, EventTime) VALUES('2', '2a', now());
ALTER TABLE test_a ADD COLUMN NewColumn String DEFAULT '' AFTER OldColumn;
INSERT INTO test_a (OldColumn, NewColumn, EventTime) VALUES('2', '2a', now());
SELECT NewColumn
FROM test_a
INNER JOIN
(SELECT OldColumn, NewColumn FROM test_b) s
Using OldColumn
PREWHERE NewColumn != '';
DROP TABLE test_a;
DROP TABLE test_b;