Muhammad Gelbana created CALCITE-3128:
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Summary: Joining two tables producing only NULLs will return 0 rows
Key: CALCITE-3128
URL: https://issues.apache.org/jira/browse/CALCITE-3128
Project: Calcite
Issue Type: Bug
Components: core
Affects Versions: 1.20.0
Reporter: Muhammad Gelbana
The following queries will return 0 rows while they're expected to ruturn rows
with NULLs in them.
{code:sql}
SELECT *
FROM (SELECT NULLIF(5, 5)) a, (SELECT NULLIF(5, 5)) b
{code}
{code:sql}
SELECT *
FROM (VALUES (NULLIF(5, 5)), (NULLIF(5, 5))) a, (VALUES (NULLIF(5, 5)),
(NULLIF(5, 5))) b
{code}
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