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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2017/07/04 01:14:02 UTC
[jira] [Commented] (SPARK-21296) Avoid per-record type dispatch in
PySpark createDataFrame schema verification
[ https://issues.apache.org/jira/browse/SPARK-21296?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16073001#comment-16073001 ]
Apache Spark commented on SPARK-21296:
--------------------------------------
User 'HyukjinKwon' has created a pull request for this issue:
https://github.com/apache/spark/pull/18521
> Avoid per-record type dispatch in PySpark createDataFrame schema verification
> -----------------------------------------------------------------------------
>
> Key: SPARK-21296
> URL: https://issues.apache.org/jira/browse/SPARK-21296
> Project: Spark
> Issue Type: Improvement
> Components: PySpark
> Affects Versions: 2.2.0
> Reporter: Hyukjin Kwon
>
> Here, we do the type dispatch per record - https://github.com/apache/spark/blob/d935e0a9d9bb3d3c74e9529e161648caa50696b7/python/pyspark/sql/types.py#L1252-L1366 and
> https://github.com/apache/spark/blob/d935e0a9d9bb3d3c74e9529e161648caa50696b7/python/pyspark/sql/session.py#L517-L537
> This requires per-record operation cost. We should get rid of this.
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