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Posted to issues@spark.apache.org by "Hyukjin Kwon (JIRA)" <ji...@apache.org> on 2019/02/06 10:05:00 UTC
[jira] [Created] (SPARK-26832) Avoid project creation per record at
Python's grouped vectorized UDF
Hyukjin Kwon created SPARK-26832:
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Summary: Avoid project creation per record at Python's grouped vectorized UDF
Key: SPARK-26832
URL: https://issues.apache.org/jira/browse/SPARK-26832
Project: Spark
Issue Type: Improvement
Components: PySpark, SQL
Affects Versions: 2.4.0, 2.3.2, 3.0.0
Reporter: Hyukjin Kwon
https://github.com/apache/spark/blob/master/sql/core/src/main/scala/org/apache/spark/sql/execution/python/FlatMapGroupsInPandasExec.scala#L148
this line seems to creating projection per each record.
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