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  1. Flink
  2. FLINK-5520

Disable outer joins with non-equality predicates

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Blocker
    • Resolution: Done
    • Affects Version/s: 1.2.0
    • Fix Version/s: 1.2.0, 1.3.0
    • Component/s: Table API & SQL
    • Labels:
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      Description

      Outer joins with non-equality predicates (and at least one equality predicate) compute incorrect results.

      Since this is not a very common requirement, I propose to disable this feature for the 1.2.0 release and correctly implement it for a later version.

      The fix should add checks in the Table API validation phase (to get a good error message) and in the DataSetJoinRule to prevent translation of SQL queries with non-equality predicates on outer joins.

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              • Assignee:
                lincoln.86xy lincoln.lee
                Reporter:
                fhueske Fabian Hueske
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                • Created:
                  Updated:
                  Resolved: