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author | Reynold Xin <rxin@databricks.com> | 2015-11-24 14:51:01 -0800 |
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committer | Reynold Xin <rxin@databricks.com> | 2015-11-24 14:51:01 -0800 |
commit | 34ca392da7097a1fbe48cd6c3ebff51453ca26ca (patch) | |
tree | 43deb0b0078def296013c648d402aa089a7d55a2 | |
parent | 58d9b260556a89a3d0832d583acafba1df7c6751 (diff) | |
download | spark-34ca392da7097a1fbe48cd6c3ebff51453ca26ca.tar.gz spark-34ca392da7097a1fbe48cd6c3ebff51453ca26ca.tar.bz2 spark-34ca392da7097a1fbe48cd6c3ebff51453ca26ca.zip |
Added a line of comment to explain why the extra sort exists in pivot.
-rw-r--r-- | sql/core/src/main/scala/org/apache/spark/sql/GroupedData.scala | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sql/core/src/main/scala/org/apache/spark/sql/GroupedData.scala b/sql/core/src/main/scala/org/apache/spark/sql/GroupedData.scala index ee7150cbbf..abd531c4ba 100644 --- a/sql/core/src/main/scala/org/apache/spark/sql/GroupedData.scala +++ b/sql/core/src/main/scala/org/apache/spark/sql/GroupedData.scala @@ -304,7 +304,7 @@ class GroupedData protected[sql]( // Get the distinct values of the column and sort them so its consistent val values = df.select(pivotColumn) .distinct() - .sort(pivotColumn) + .sort(pivotColumn) // ensure that the output columns are in a consistent logical order .map(_.get(0)) .take(maxValues + 1) .toSeq |