GitHub user QiangCai opened a pull request:
https://github.com/apache/carbondata/pull/2971
[TEST] Test loading performance of range_sort
For global_sort, add a option 'range_column':
LOAD DATA LOCAL INPATH 'xxx' INTO TABLE xxx OPTIONS('range_column'='a
column name')
During data loading
1. range partition the input data by range_column
2. for each range, execute local sort step to load the data
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/QiangCai/carbondata range_sort
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/carbondata/pull/2971.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 #2971
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commit 9d855bc65aa85efb84ad3e54f3188a16e1a58d3b
Author: QiangCai <qiangcai@...>
Date: 2018-12-03T08:37:57Z
support range sort
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