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Posted to issues@hawq.apache.org by "Hubert Zhang (JIRA)" <ji...@apache.org> on 2015/12/10 04:32:11 UTC

[jira] [Created] (HAWQ-239) reduce the call times of GpPolicy to improve performance on scan empty table

Hubert Zhang created HAWQ-239:
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             Summary: reduce the call times of GpPolicy to improve performance on scan empty table
                 Key: HAWQ-239
                 URL: https://issues.apache.org/jira/browse/HAWQ-239
             Project: Apache HAWQ
          Issue Type: Improvement
          Components: Core
            Reporter: Hubert Zhang
            Assignee: Lei Chang


in get_block_locations_and_claculte_table_size(), GpPolicy is called twice for each relation, we need to reduce it to zero



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