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Posted to issues@impala.apache.org by "Taras Bobrovytsky (JIRA)" <ji...@apache.org> on 2017/05/13 02:33:04 UTC

[jira] [Created] (IMPALA-5320) Partioned and unpartitioned tables should be treated if optimize_partition_key_scans is enabled and we are scanning zero slots

Taras Bobrovytsky created IMPALA-5320:
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             Summary: Partioned and unpartitioned tables should be treated if optimize_partition_key_scans is enabled and we are scanning zero slots
                 Key: IMPALA-5320
                 URL: https://issues.apache.org/jira/browse/IMPALA-5320
             Project: IMPALA
          Issue Type: Bug
          Components: Frontend
    Affects Versions: Impala 2.9.0
            Reporter: Taras Bobrovytsky
            Assignee: Taras Bobrovytsky
            Priority: Minor


Currently the planner creates a constant union node if we are doing a zero slot scan on a partitioned table. However, if we are doing a zero slot scan on an unpartitioned table, the planner creates a scan node. It would be correct to create a constant union node in both cases.



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