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Posted to issues-all@impala.apache.org by "Aman Sinha (Jira)" <ji...@apache.org> on 2020/03/20 19:53:00 UTC

[jira] [Created] (IMPALA-9539) Enable the conjunctive normal form rewrites by default

Aman Sinha created IMPALA-9539:
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             Summary: Enable the conjunctive normal form rewrites by default
                 Key: IMPALA-9539
                 URL: https://issues.apache.org/jira/browse/IMPALA-9539
             Project: IMPALA
          Issue Type: Bug
          Components: Frontend
            Reporter: Aman Sinha
            Assignee: Aman Sinha


IMPALA-9183 adds the functionality to convert disjunctive predicates into conjunctive normal form (CNF).  Currently, the rewrite is disabled by default and  can be enabled by setting enable_cnf_rewrites to true.  Since it can cause several plan changes, we should ensure it does not cause regressions (both in terms of result correctness and performance) and then enable it by default.  This JIRA is a follow-up to IMPALA-9183. 



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