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| author | xin wu <xinwu@us.ibm.com> | 2016-09-25 16:46:12 -0700 |
|---|---|---|
| committer | Herman van Hovell <hvanhovell@databricks.com> | 2016-09-25 16:46:12 -0700 |
| commit | de333d121da4cb80d45819cbcf8b4246e48ec4d0 (patch) | |
| tree | 64d7b8dc9b34749574f5ddd78a9f951ca9ed8575 /sql/README.md | |
| parent | 7945daed12542587d51ece8f07e5c828b40db14a (diff) | |
| download | spark-de333d121da4cb80d45819cbcf8b4246e48ec4d0.tar.gz spark-de333d121da4cb80d45819cbcf8b4246e48ec4d0.tar.bz2 spark-de333d121da4cb80d45819cbcf8b4246e48ec4d0.zip | |
[SPARK-17551][SQL] Add DataFrame API for null ordering
## What changes were proposed in this pull request?
This pull request adds Scala/Java DataFrame API for null ordering (NULLS FIRST | LAST).
Also did some minor clean up for related code (e.g. incorrect indentation), and renamed "orderby-nulls-ordering.sql" to be consistent with existing test files.
## How was this patch tested?
Added a new test case in DataFrameSuite.
Author: petermaxlee <petermaxlee@gmail.com>
Author: Xin Wu <xinwu@us.ibm.com>
Closes #15123 from petermaxlee/SPARK-17551.
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