GitHub user kevinjmh opened a pull request:
https://github.com/apache/carbondata/pull/2713
[CARBONDATA-2931][BloomDataMap] Optimize bloom datamap pruning
1. re-use shard pruning info from default datamap
2. create one BloomCoarseGrainDataMap object per segment instead of per
shard. (This is also preparation for parallel segment pruning)
Be sure to do all of the following checklist to help us incorporate
your contribution quickly and easily:
- [ ] Any interfaces changed?
- [ ] Any backward compatibility impacted?
- [ ] Document update required?
- [ ] Testing done
Please provide details on
- Whether new unit test cases have been added or why no new tests
are required?
- How it is tested? Please attach test report.
- Is it a performance related change? Please attach the performance
test report.
- Any additional information to help reviewers in testing this
change.
- [ ] For large changes, please consider breaking it into sub-tasks under
an umbrella JIRA.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/kevinjmh/carbondata bloom_shard_op
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/carbondata/pull/2713.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 #2713
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commit 8544ed699424ff6089d28b8e07f582a2f9e25b78
Author: Manhua <kevinjmh@...>
Date: 2018-08-30T01:43:10Z
all shard of one segment use one datamap
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