GitHub user xubo245 opened a pull request:
https://github.com/apache/carbondata/pull/1523
[CARBONDATA-1756] Improve Boolean data compress rate by changing RLE to
SNNAPY algorithm
Improve Boolean data compress rate by changing RLE to SNNAPY algorithm
Because Boolean data compress rate that uses RLE algorithm is lower than
SNNAPY algorithm in most scenario.
We also add some test case for testing Boolean data compress rate.
Be sure to do all of the following checklist to help us incorporate
your contribution quickly and easily:
- [ ] Any interfaces changed?
No
- [ ] Any backward compatibility impacted?
No
- [ ] Document update required?
No
- [ ] Testing done
TestBooleanCompressSuite.scala
- [ ] For large changes, please consider breaking it into sub-tasks under
an umbrella JIRA.
No
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/xubo245/carbondata RLE2Snappy
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/carbondata/pull/1523.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 #1523
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commit ac266e07bc446e27914cdf17dca45692722e82b5
Author: xubo245 <[email protected]>
Date: 2017-11-17T09:17:43Z
[CARBONDATA-1756] Improve Boolean data compress rate by changing RLE to
SNNAPY algorithm
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