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Danny Chan commented on CALCITE-3128: ------------------------------------- While i execute the query in MYSQL 5.6: {code:sql} SELECT *FROM (SELECT NULLIF(5, 5)) a, (SELECT NULLIF(5, 5)) b {code} the result are (null) which is same from query: {code:java} SELECT *FROM (SELECT NULLIF(5, 5)) a {code} Does this behavior is expected ? > 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 > Priority: Major > > 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} -- This message was sent by Atlassian JIRA (v7.6.3#76005)