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Posted to dev@hive.apache.org by "Panagiotis Garefalakis (Jira)" <ji...@apache.org> on 2020/07/20 12:29:00 UTC

[jira] [Created] (HIVE-23882) Compiler should skip MJ keyExpr for probe optimization

Panagiotis Garefalakis created HIVE-23882:
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             Summary: Compiler should skip MJ keyExpr for probe optimization
                 Key: HIVE-23882
                 URL: https://issues.apache.org/jira/browse/HIVE-23882
             Project: Hive
          Issue Type: Sub-task
            Reporter: Panagiotis Garefalakis
            Assignee: Panagiotis Garefalakis


In probe we cannot currently support Key expressions (on the big table Side) as ORC CVs Probe directly the smalltable HT (there is no expr evaluation at that level).

TezCompiler should take this into account when picking MJs to push probe details



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