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Posted to issues@drill.apache.org by "Aman Sinha (JIRA)" <ji...@apache.org> on 2019/04/04 19:47:00 UTC

[jira] [Updated] (DRILL-7119) Modify selectivity calculations to use histograms

     [ https://issues.apache.org/jira/browse/DRILL-7119?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Aman Sinha updated DRILL-7119:
------------------------------
    Reviewer: Gautam Parai

> Modify selectivity calculations to use histograms
> -------------------------------------------------
>
>                 Key: DRILL-7119
>                 URL: https://issues.apache.org/jira/browse/DRILL-7119
>             Project: Apache Drill
>          Issue Type: Sub-task
>          Components: Query Planning &amp; Optimization
>            Reporter: Aman Sinha
>            Assignee: Aman Sinha
>            Priority: Major
>             Fix For: 1.16.0
>
>
> (Please see parent JIRA for the design document)
> Once the t-digest based histogram is created, we need to read it back and modify the selectivity calculations such that they use the histogram buckets for range conditions.



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