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Posted to issues@drill.apache.org by "Yuliya Feldman (JIRA)" <ji...@apache.org> on 2015/02/27 08:06:05 UTC

[jira] [Updated] (DRILL-2209) Save on CPU cycles by adding Project with column that has hash calculated

     [ https://issues.apache.org/jira/browse/DRILL-2209?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Yuliya Feldman updated DRILL-2209:
----------------------------------
    Target Version/s: 0.8.0

> Save on CPU cycles by adding Project with column that has hash calculated
> -------------------------------------------------------------------------
>
>                 Key: DRILL-2209
>                 URL: https://issues.apache.org/jira/browse/DRILL-2209
>             Project: Apache Drill
>          Issue Type: Improvement
>          Components: Execution - Flow, Query Planning & Optimization
>            Reporter: Yuliya Feldman
>            Assignee: Yuliya Feldman
>
> Related to DRILL-133. Wrapping HashToRandomExhcnage and/or LocalExchange with Project operator with additional column that represents hash function of column(s) we are hashing on. This is to save CPU cycles and not recalculate hash every time



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