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Posted to issues@drill.apache.org by "Padma Penumarthy (JIRA)" <ji...@apache.org> on 2017/08/18 18:23:01 UTC

[jira] [Created] (DRILL-5731) regionsToScan is computed multiple times for MapR DB Json and Binary tables

Padma Penumarthy created DRILL-5731:
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             Summary: regionsToScan is computed multiple times for MapR DB Json and Binary tables
                 Key: DRILL-5731
                 URL: https://issues.apache.org/jira/browse/DRILL-5731
             Project: Apache Drill
          Issue Type: Improvement
            Reporter: Padma Penumarthy
            Assignee: Padma Penumarthy


We are computing regionsToScan for both Json and binary tables in groupScan init, which gets called multiple times during planning. This is expensive and not needed. Instead, compute only when needed for parallelization assignment.



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