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https://issues.apache.org/jira/browse/DRILL-5137?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15766641#comment-15766641
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ASF GitHub Bot commented on DRILL-5137:
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GitHub user spanchamiamapr opened a pull request:
https://github.com/apache/drill/pull/700
DRILL-5137 - Optimize count(*) queries on MapR-DB Binary Tables
This diff uses the same optimization as that for the rowKeyOnly queries.
We use the FirstKeyOnlyFilter for count(*) queries.
This fix will optimize these queries for HBase tables, as well as MapR-DB
Binary tables.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/spanchamiamapr/drill drill-5137
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/drill/pull/700.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #700
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commit 52765e5420be0db5e12b68d161ac06ea1855d3a0
Author: Smidth Panchamia <[email protected]>
Date: 2016-12-21T09:53:21Z
DRILL-5137 - This diff uses the same optimization as that for the
rowKeyOnly queries.
We use the FirstKeyOnlyFilter for count(*) queries.
This fix will optimize these queries for HBase tables, as well as MapR-DB
Binary tables.
----
> Optimize count(*) queries on MapR-DB Binary Tables
> --------------------------------------------------
>
> Key: DRILL-5137
> URL: https://issues.apache.org/jira/browse/DRILL-5137
> Project: Apache Drill
> Issue Type: Improvement
> Components: Storage - HBase, Storage - MapRDB
> Affects Versions: 1.9.0
> Reporter: Abhishek Girish
> Assignee: Smidth Panchamia
>
> This is related to DRILL-5065, but applies to MapR-DB Binary tables
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