spark-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Ryan Blue (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (SPARK-23203) DataSourceV2 should use immutable trees.
Date Wed, 24 Jan 2018 18:43:00 GMT

     [ https://issues.apache.org/jira/browse/SPARK-23203?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ryan Blue updated SPARK-23203:
------------------------------
    Description: 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.

> 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-unsubscribe@spark.apache.org
For additional commands, e-mail: issues-help@spark.apache.org


Mime
View raw message