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Add a test for ALIAS with type different to the type of column

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This commit is contained in:
Azat Khuzhin 2020-04-28 22:41:23 +03:00
parent c50b00c3f2
commit 007170481a
2 changed files with 24 additions and 0 deletions
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4
tests/queries/0_stateless/01269_alias_type_differs.reference Normal file
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@ -0,0 +1,4 @@
UInt8
0
UInt8
0

20
tests/queries/0_stateless/01269_alias_type_differs.sql Normal file
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DROP TABLE IF EXISTS data_01269;
CREATE TABLE data_01269
(
key Int32,
value Nullable(Int32),
alias UInt8 ALIAS value>0
)
ENGINE = MergeTree()
ORDER BY key;
INSERT INTO data_01269 VALUES (1, 0);
-- after PR#10441
SELECT toTypeName(alias) FROM data_01269;
SELECT any(alias) FROM data_01269;
-- even without PR#10441
ALTER TABLE data_01269 DROP COLUMN alias;
ALTER TABLE data_01269 ADD COLUMN alias UInt8 ALIAS value>0;
SELECT toTypeName(alias) FROM data_01269;
SELECT any(alias) FROM data_01269;