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Posted to dev@drill.apache.org by spanchamiamapr <gi...@git.apache.org> on 2016/12/05 19:00:28 UTC
[GitHub] drill pull request #677: DRILL-5065 - Optimize count( * ) queries on MapR-DB...
GitHub user spanchamiamapr opened a pull request:
https://github.com/apache/drill/pull/677
DRILL-5065 - Optimize count( * ) queries on MapR-DB JSON Tables
In MapR-DB v5.2.0, we enabled '_id' only projection for JSON tables.
Hence, we can now optimize the following queries:
a. count(*) by projecting only the '_id' column.
b. '_id' only projections, including count(_id)
Change the format plugin config parameter name.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/spanchamiamapr/drill drill-5065
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/drill/pull/677.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 #677
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commit 0c07e2857f09e6f262b246e795f10901ed744e3d
Author: Smidth Panchamia <sp...@mapr.com>
Date: 2016-11-28T21:59:34Z
DRILL-5065 - Optimize count( * ) queries on MapR-DB JSON Tables
In MapR-DB v5.2.0, we enabled '_id' only projection for JSON tables.
Hence, we can now optimize the following queries:
a. count(*) by projecting only the '_id' column.
b. '_id' only projections, including count(_id)
Change the format plugin config parameter name.
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[GitHub] drill pull request #677: DRILL-5065 - Optimize count( * ) queries on MapR-DB...
Posted by spanchamiamapr <gi...@git.apache.org>.
Github user spanchamiamapr closed the pull request at:
https://github.com/apache/drill/pull/677
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[GitHub] drill pull request #677: DRILL-5065 - Optimize count( * ) queries on MapR-DB...
Posted by adityakishore <gi...@git.apache.org>.
Github user adityakishore commented on a diff in the pull request:
https://github.com/apache/drill/pull/677#discussion_r90932924
--- Diff: contrib/format-maprdb/src/main/java/org/apache/drill/exec/store/mapr/db/MapRDBFormatPluginConfig.java ---
@@ -65,6 +68,15 @@ public void setAllTextMode(boolean mode) {
allTextMode = mode;
}
+ @JsonProperty("disableCountOptimization")
+ public void setReadDocumentForCount(boolean mode) {
--- End diff --
setter function does not match the parameter.
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