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Posted to issues@drill.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2019/04/09 00:35:00 UTC
[jira] [Commented] (DRILL-7119) Modify selectivity calculations to
use histograms for supported data types
[ https://issues.apache.org/jira/browse/DRILL-7119?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16812897#comment-16812897 ]
ASF GitHub Bot commented on DRILL-7119:
---------------------------------------
amansinha100 commented on pull request #1733: DRILL-7119: Compute range predicate selectivity using histograms.
URL: https://github.com/apache/drill/pull/1733
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> Modify selectivity calculations to use histograms for supported data types
> --------------------------------------------------------------------------
>
> Key: DRILL-7119
> URL: https://issues.apache.org/jira/browse/DRILL-7119
> Project: Apache Drill
> Issue Type: Sub-task
> Components: Query Planning & Optimization
> Reporter: Aman Sinha
> Assignee: Aman Sinha
> Priority: Major
> Labels: ready-to-commit
> 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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