GitHub user BryanCutler opened a pull request:
https://github.com/apache/spark/pull/21478
[SPARK-24444][DOCS][PYTHON][BRANCH-2.3] Improve Pandas UDF docs to explain
column assignment
## What changes were proposed in this pull request?
Added sections to pandas_udf docs, in the grouped map section, to indicate
columns are assigned by position. Backported to branch-2.3.
## How was this patch tested?
NA
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/BryanCutler/spark
arrow-doc-pandas_udf-column_by_pos-2_3_1-SPARK-21427
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/21478.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 #21478
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commit a81d9e5b4074d1dc3c40d4d31ea1a4e5850eea30
Author: Bryan Cutler <cutlerb@...>
Date: 2018-05-31T18:50:07Z
added note to doc test
commit 33e6ce53b96540a0d52a5962aacb0f46f97f27f5
Author: Bryan Cutler <cutlerb@...>
Date: 2018-05-31T19:31:10Z
forgot to indent note
commit b8010299a79390b89046c00bd2ab4833cf4a512e
Author: Bryan Cutler <cutlerb@...>
Date: 2018-05-31T19:12:32Z
slight reword
commit 343f00a6f1aae2b16df4e078ab6b1c3f3a77904e
Author: Bryan Cutler <cutlerb@...>
Date: 2018-05-31T22:42:34Z
also OrderedDict in pydoc
commit 34797fadcb7f427a42c316ed1c3c396520cb720c
Author: Bryan Cutler <cutlerb@...>
Date: 2018-05-31T19:10:09Z
added to sql guide
commit 58e7927c770aa483837e6d8cb94800afb3c4fdf7
Author: Bryan Cutler <cutlerb@...>
Date: 2018-05-31T21:56:24Z
alt OrderedDict
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