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Posted to issues@impala.apache.org by "Tianyi Wang (JIRA)" <ji...@apache.org> on 2018/05/30 03:00:00 UTC

[jira] [Created] (IMPALA-7094) Fallback to an unoptimized query if ExprRewriter fails

Tianyi Wang created IMPALA-7094:
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             Summary: Fallback to an unoptimized query if ExprRewriter fails
                 Key: IMPALA-7094
                 URL: https://issues.apache.org/jira/browse/IMPALA-7094
             Project: IMPALA
          Issue Type: Improvement
          Components: Frontend
    Affects Versions: Impala 3.1.0
            Reporter: Tianyi Wang


The ExprRewriter in impala is growing more complex and sometimes fails. Currently the user have to disable the rewrite to workaround it until the bug is fixed. Impala should fallback to an unrewritten query automatically and print a warning to provide a smoother user experience if there are ExprRewriter bugs in the future. 



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