GitHub user icexelloss opened a pull request:
https://github.com/apache/spark/pull/19630
wip: Introduce function type argument in pandas_udf
## What changes were proposed in this pull request?
* Add a "function type" argument to pandas_udf.
* Refactor udf related code from pyspark.sql.functions to pyspark.sql.udf
* Merge "PythonUdfType" and "PythonEvalType" into a single class
"PythonEvalType"
## Design doc
https://docs.google.com/document/d/1KlLaa-xJ3oz28xlEJqXyCAHU3dwFYkFs_ixcUXrJNTc/edit
## How was this patch tested?
Added PandasUDFTests
## TODO:
* [ ] Implement proper enum type for `PandasUdfType`
* [ ] Update documentation
* [ ] Add more tests to PandasUDFTests
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/icexelloss/spark spark-22409-pandas-udf-type
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/19630.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 #19630
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commit a78a5e9849b62059c72cf2c87d79a6bee83316ff
Author: Li Jin <ice.xell...@gmail.com>
Date: 2017-11-01T16:50:19Z
initial commit
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