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  1. Hive
  2. HIVE-16940

Residual predicates in join operator prevent vectorization

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    Details

    • Type: Improvement
    • Status: Open
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: 3.0.0
    • Fix Version/s: None
    • Component/s: Vectorization
    • Labels:
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    • Target Version/s:

      Description

      With HIVE-16885, filter predicates in ON clause for INNER joins are pushed within the join operator (residual predicates in the operator). Previously, residual predicates were only used for OUTER join operators.

      Currently, vectorization does not support the evaluation of residual predicates that are within an INNER join, and thus, it gets disabled if the filter expression is pushed within the join. We should implement the vectorization of INNER join in the presence of residual predicates.

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              • Assignee:
                Unassigned
                Reporter:
                jcamachorodriguez Jesus Camacho Rodriguez
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                • Created:
                  Updated: