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author | zero323 <zero323@users.noreply.github.com> | 2016-12-02 17:39:28 -0800 |
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committer | Reynold Xin <rxin@databricks.com> | 2016-12-02 17:39:28 -0800 |
commit | a9cbfc4f6a8db936215fcf64697d5b65f13f666e (patch) | |
tree | 4ea20839c22b2297b889421a36b62da4dbea66e6 /docs | |
parent | 2dc0d7efe3380a5763cb69ef346674a46f8e3d57 (diff) | |
download | spark-a9cbfc4f6a8db936215fcf64697d5b65f13f666e.tar.gz spark-a9cbfc4f6a8db936215fcf64697d5b65f13f666e.tar.bz2 spark-a9cbfc4f6a8db936215fcf64697d5b65f13f666e.zip |
[SPARK-18690][PYTHON][SQL] Backward compatibility of unbounded frames
## What changes were proposed in this pull request?
Makes `Window.unboundedPreceding` and `Window.unboundedFollowing` backward compatible.
## How was this patch tested?
Pyspark SQL unittests.
Please review http://spark.apache.org/contributing.html before opening a pull request.
Author: zero323 <zero323@users.noreply.github.com>
Closes #16123 from zero323/SPARK-17845-follow-up.
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