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fix #16123

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This commit is contained in:
feng lv 2020-11-07 04:14:50 +00:00
parent 4e85d6a4c3
commit 3342da1d77
3 changed files with 100 additions and 1 deletions
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2
src/Interpreters/TreeRewriter.cpp
View File

@ -125,7 +125,7 @@ struct CustomizeAggregateFunctionsSuffixData
{
auto properties = instance.tryGetProperties(func.name);
if (properties && !properties->returns_default_when_only_null)
func.name = func.name + customized_func_suffix;
func.name = Poco::toLower(func.name) + customized_func_suffix;
}
}
};

8
tests/queries/0_stateless/01559_aggregate_null_for_empty_fix.reference Normal file
View File

@ -0,0 +1,8 @@
0
0
0
0
-1
-1
-1
\N

91
tests/queries/0_stateless/01559_aggregate_null_for_empty_fix.sql Normal file
View File

@ -0,0 +1,91 @@
SELECT MAX(aggr)
FROM
(
SELECT MAX(-1) AS aggr
FROM system.one
WHERE NOT 1
UNION ALL
SELECT MAX(-1) AS aggr
FROM system.one
WHERE 1
);
SELECT MaX(aggr)
FROM
(
SELECT mAX(-1) AS aggr
FROM system.one
WHERE NOT 1
UNION ALL
SELECT MAx(-1) AS aggr
FROM system.one
WHERE 1
);
SELECT MaX(aggr)
FROM
(
SELECT mAX(-1) AS aggr
FROM system.one
WHERE NOT 1
UNION ALL
SELECT max(-1) AS aggr
FROM system.one
WHERE 1
);
SELECT MaX(aggr)
FROM
(
SELECT mAX(-1) AS aggr
FROM system.one
WHERE NOT 1
UNION ALL
SELECT max(-1) AS aggr
FROM system.one
WHERE not 1
);
SET aggregate_functions_null_for_empty=1;
SELECT MAX(aggr)
FROM
(
SELECT MAX(-1) AS aggr
FROM system.one
WHERE NOT 1
UNION ALL
SELECT MAX(-1) AS aggr
FROM system.one
WHERE 1
);
SELECT MaX(aggr)
FROM
(
SELECT mAX(-1) AS aggr
FROM system.one
WHERE NOT 1
UNION ALL
SELECT MAx(-1) AS aggr
FROM system.one
WHERE 1
);
SELECT MaX(aggr)
FROM
(
SELECT mAX(-1) AS aggr
FROM system.one
WHERE NOT 1
UNION ALL
SELECT max(-1) AS aggr
FROM system.one
WHERE 1
);
SELECT MaX(aggr)
FROM
(
SELECT mAX(-1) AS aggr
FROM system.one
WHERE NOT 1
UNION ALL
SELECT max(-1) AS aggr
FROM system.one
WHERE not 1
);