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Test for issue #9088

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ALTER DELETE unexpectedly deletes NULL rows
This commit is contained in:
Mikhail Filimonov 2020-07-03 12:03:30 +02:00 committed by Alexey Milovidov
parent 4f63af957d
commit 935b943703
2 changed files with 46 additions and 0 deletions
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20
tests/queries/0_stateless/01358_mutation_delete_null_rows.reference Normal file
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@ -0,0 +1,20 @@
--------
0 1 x=0
1 0 x<>0
3 0 x<>0
\N \N x<>0
--------
2020-01-01 2 0 leave
2020-01-02 aaa 0 1 delete
2020-01-03 2 0 leave
2020-01-04 2 0 leave
2020-01-05 \N 2 0 leave
2020-01-06 aaa 0 1 delete
2020-01-07 aaa 0 1 delete
2020-01-08 aaa \N \N leave
--------
2020-01-01 2
2020-01-03 2
2020-01-04 2
2020-01-05 \N 2
2020-01-08 aaa \N

26
tests/queries/0_stateless/01358_mutation_delete_null_rows.sql Normal file
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@ -0,0 +1,26 @@
select '--------';
SELECT arrayJoin([0, 1, 3, NULL]) AS x, x = 0, if(x = 0, 'x=0', 'x<>0') ORDER BY x;
select '--------';
drop table if exists mutation_delete_null_rows;
CREATE TABLE mutation_delete_null_rows
(
`EventDate` Date,
`CounterID` Nullable(String),
`UserID` Nullable(UInt32)
)
ENGINE = MergeTree()
ORDER BY EventDate;
INSERT INTO mutation_delete_null_rows VALUES ('2020-01-01', '', 2)('2020-01-02', 'aaa', 0);
INSERT INTO mutation_delete_null_rows VALUES ('2020-01-03', '', 2)('2020-01-04', '', 2)('2020-01-05', NULL, 2)('2020-01-06', 'aaa', 0)('2020-01-07', 'aaa', 0)('2020-01-08', 'aaa', NULL);
SELECT *,UserID = 0 as UserIDEquals0, if(UserID = 0, 'delete', 'leave') as verdict FROM mutation_delete_null_rows ORDER BY EventDate;
ALTER TABLE mutation_delete_null_rows DELETE WHERE UserID = 0 SETTINGS mutations_sync=1;
select '--------';
SELECT * FROM mutation_delete_null_rows ORDER BY EventDate;
drop table mutation_delete_null_rows;