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Posted to issues@spark.apache.org by "Philip Dakin (Jira)" <ji...@apache.org> on 2023/10/18 21:48:00 UTC
[jira] [Comment Edited] (SPARK-44734) Add documentation for type casting rules in Python UDFs/UDTFs
[ https://issues.apache.org/jira/browse/SPARK-44734?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17776921#comment-17776921 ]
Philip Dakin edited comment on SPARK-44734 at 10/18/23 9:47 PM:
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[~panbingkun] please make sure changes operate well with https://issues.apache.org/jira/browse/SPARK-44733 in [https://github.com/apache/spark/pull/43369]
was (Author: JIRAUSER302581):
[~panbingkun] please make sure changes operate well with https://github.com/apache/spark/pull/43369.
> Add documentation for type casting rules in Python UDFs/UDTFs
> -------------------------------------------------------------
>
> Key: SPARK-44734
> URL: https://issues.apache.org/jira/browse/SPARK-44734
> Project: Spark
> Issue Type: Sub-task
> Components: PySpark
> Affects Versions: 4.0.0
> Reporter: Allison Wang
> Priority: Major
>
> In addition to type mappings between Spark data types and Python data types (SPARK-44733), we should add the type casting rules for regular and arrow-optimized Python UDFs/UDTFs.
> We currently have this table in code:
> * Arrow: [https://github.com/apache/spark/blob/master/python/pyspark/sql/pandas/functions.py#L311-L329]
> * Python UDF: [https://github.com/apache/spark/blob/master/python/pyspark/sql/udf.py#L101-L116]
> We should add a proper documentation page for the type casting rules.
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