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Posted to issues@calcite.apache.org by "Muhammad Gelbana (JIRA)" <ji...@apache.org> on 2019/06/14 14:54:00 UTC

[jira] [Created] (CALCITE-3128) Joining two tables producing only NULLs will return 0 rows

Muhammad Gelbana created CALCITE-3128:
-----------------------------------------

             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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