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Posted to issues@impala.apache.org by "Quanlong Huang (Jira)" <ji...@apache.org> on 2022/02/21 02:55:00 UTC

[jira] [Created] (IMPALA-11142) Consider IN-list filters in partitioned joins

Quanlong Huang created IMPALA-11142:
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             Summary: Consider IN-list filters in partitioned joins
                 Key: IMPALA-11142
                 URL: https://issues.apache.org/jira/browse/IMPALA-11142
             Project: IMPALA
          Issue Type: Improvement
          Components: Backend, Frontend
            Reporter: Quanlong Huang


We currently skip generating runtime IN-list filter for partitioned joins, because they are likely to exceeds the entry limit (1024) on the build side, leading the IN-list filter being disabled. However, the build side can still be small if it has selective predicates. We should consider enabling runtime IN-list filters based on the estimated cardinality of partitioned joins.

Run some perf tests to decide this.



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