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| author | Felix Cheung <felixcheung_m@hotmail.com> | 2017-02-15 10:45:37 -0800 |
|---|---|---|
| committer | Felix Cheung <felixcheung@apache.org> | 2017-02-15 10:45:37 -0800 |
| commit | 671bc08ed502815bfa2254c30d64149402acb0c7 (patch) | |
| tree | 3edcf2548e8f58a6a27db9c16050a3ff1d8ae261 /sql/hive | |
| parent | c97f4e17de0ce39e8172a5a4ae81f1914816a358 (diff) | |
| download | spark-671bc08ed502815bfa2254c30d64149402acb0c7.tar.gz spark-671bc08ed502815bfa2254c30d64149402acb0c7.tar.bz2 spark-671bc08ed502815bfa2254c30d64149402acb0c7.zip | |
[SPARK-19399][SPARKR] Add R coalesce API for DataFrame and Column
## What changes were proposed in this pull request?
Add coalesce on DataFrame for down partitioning without shuffle and coalesce on Column
## How was this patch tested?
manual, unit tests
Author: Felix Cheung <felixcheung_m@hotmail.com>
Closes #16739 from felixcheung/rcoalesce.
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