GitHub user QiangCai opened a pull request:
https://github.com/apache/carbondata/pull/916
[CARBONDATA-938] Prune partitions for filter query on partition column
1. generate partition filter by basing on pushed-down filter
2. apply partition filter to get the map of required partition (use BitSet)
support EqualTo, In, GreaterThan/EqualTo(>, >=), LessThan/EqualTo(<, <=)
3. in CarbonInputFormat, use partition map to skip some non-required splits
4. add query test case
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/QiangCai/incubator-carbondata
newprunepartition
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/carbondata/pull/916.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 #916
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commit 32a5ae41a0d4ef0372bbcb662ad78ae2c89fe637
Author: QiangCai <qiang...@qq.com>
Date: 2017-05-04T03:26:05Z
prunepartition
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