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Added tests [#CLICKHOUSE-2789].

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This commit is contained in:
Alexey Milovidov 2017-03-09 22:45:22 +03:00
parent ee0f0a8818
commit 3107156fd9
2 changed files with 49 additions and 0 deletions
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30
dbms/tests/queries/0_stateless/00433_ifnull.reference Normal file
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x String
x String
x String
x String
x String
x String
x Nullable(String)
0 String
1 String
2 String
3 String
4 String
0 String
-1 String
2 String
3 String
4 String
0 String
1 String
2 String
3 String
4 String
0 Nullable(String)
-1 Nullable(String)
2 Nullable(String)
3 Nullable(String)
4 Nullable(String)
1 UInt8
1 UInt8
\N Null

19
dbms/tests/queries/0_stateless/00433_ifnull.sql Normal file
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SELECT ifNull('x', 'y') AS res, toTypeName(res);
SELECT ifNull(materialize('x'), materialize('y')) AS res, toTypeName(res);
SELECT ifNull(toNullable('x'), 'y') AS res, toTypeName(res);
SELECT ifNull(toNullable('x'), materialize('y')) AS res, toTypeName(res);
SELECT ifNull('x', toNullable('y')) AS res, toTypeName(res);
SELECT ifNull(materialize('x'), toNullable('y')) AS res, toTypeName(res);
SELECT ifNull(toNullable('x'), toNullable('y')) AS res, toTypeName(res);
SELECT ifNull(toString(number), toString(-number)) AS res, toTypeName(res) FROM system.numbers LIMIT 5;
SELECT ifNull(nullIf(toString(number), '1'), toString(-number)) AS res, toTypeName(res) FROM system.numbers LIMIT 5;
SELECT ifNull(toString(number), nullIf(toString(-number), '-3')) AS res, toTypeName(res) FROM system.numbers LIMIT 5;
SELECT ifNull(nullIf(toString(number), '1'), nullIf(toString(-number), '-3')) AS res, toTypeName(res) FROM system.numbers LIMIT 5;
SELECT ifNull(NULL, 1) AS res, toTypeName(res);
SELECT ifNull(1, NULL) AS res, toTypeName(res);
SELECT ifNull(NULL, NULL) AS res, toTypeName(res);