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| author | Liang-Chi Hsieh <viirya@gmail.com> | 2015-02-16 10:06:11 -0800 |
|---|---|---|
| committer | Reynold Xin <rxin@databricks.com> | 2015-02-16 10:06:11 -0800 |
| commit | 5c78be7a515fc2fc92cda0517318e7b5d85762f4 (patch) | |
| tree | b3685d0c4946bf4a005944a465753d8e308ca75c /project | |
| parent | a3afa4a1bff88c4d8a5228fcf1e0cfc132541a22 (diff) | |
| download | spark-5c78be7a515fc2fc92cda0517318e7b5d85762f4.tar.gz spark-5c78be7a515fc2fc92cda0517318e7b5d85762f4.tar.bz2 spark-5c78be7a515fc2fc92cda0517318e7b5d85762f4.zip | |
[SPARK-5799][SQL] Compute aggregation function on specified numeric columns
Compute aggregation function on specified numeric columns. For example:
val df = Seq(("a", 1, 0, "b"), ("b", 2, 4, "c"), ("a", 2, 3, "d")).toDataFrame("key", "value1", "value2", "rest")
df.groupBy("key").min("value2")
Author: Liang-Chi Hsieh <viirya@gmail.com>
Closes #4592 from viirya/specific_cols_agg and squashes the following commits:
9446896 [Liang-Chi Hsieh] For comments.
314c4cd [Liang-Chi Hsieh] Merge remote-tracking branch 'upstream/master' into specific_cols_agg
353fad7 [Liang-Chi Hsieh] For python unit tests.
54ed0c4 [Liang-Chi Hsieh] Address comments.
b079e6b [Liang-Chi Hsieh] Remove duplicate codes.
55100fb [Liang-Chi Hsieh] Merge remote-tracking branch 'upstream/master' into specific_cols_agg
880c2ac [Liang-Chi Hsieh] Fix Python style checks.
4c63a01 [Liang-Chi Hsieh] Fix pyspark.
b1a24fc [Liang-Chi Hsieh] Address comments.
2592f29 [Liang-Chi Hsieh] Merge remote-tracking branch 'upstream/master' into specific_cols_agg
27069c3 [Liang-Chi Hsieh] Combine functions and add varargs annotation.
371a3f7 [Liang-Chi Hsieh] Compute aggregation function on specified numeric columns.
Diffstat (limited to 'project')
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