[
https://issues.apache.org/jira/browse/SPARK-23203?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16346253#comment-16346253
]
Apache Spark commented on SPARK-23203:
--------------------------------------
User 'cloud-fan' has created a pull request for this issue:
https://github.com/apache/spark/pull/20448
> DataSourceV2 should use immutable trees.
> ----------------------------------------
>
> Key: SPARK-23203
> URL: https://issues.apache.org/jira/browse/SPARK-23203
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 2.3.0
> Reporter: Ryan Blue
> Priority: Major
>
> The DataSourceV2 integration doesn't use [immutable
> trees|https://databricks.com/blog/2015/04/13/deep-dive-into-spark-sqls-catalyst-optimizer.html],
> which is a basic requirement of Catalyst. The v2 relation should not wrap a
> mutable reader and change the logical plan by pushing projections and filters.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org
For additional commands, e-mail: issues-h...@spark.apache.org
