You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues@spark.apache.org by "Apache Spark (Jira)" <ji...@apache.org> on 2023/03/06 16:08:00 UTC
[jira] [Assigned] (SPARK-42683) Automatically rename metadata columns that conflict with data schema columns
[ https://issues.apache.org/jira/browse/SPARK-42683?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Apache Spark reassigned SPARK-42683:
------------------------------------
Assignee: (was: Apache Spark)
> Automatically rename metadata columns that conflict with data schema columns
> ----------------------------------------------------------------------------
>
> Key: SPARK-42683
> URL: https://issues.apache.org/jira/browse/SPARK-42683
> Project: Spark
> Issue Type: Improvement
> Components: Spark Core
> Affects Versions: 3.3.2, 3.4.0
> Reporter: Ryan Johnson
> Priority: Major
>
> Today, if a datasource already has a column called `_metadata`, queries cannot access the file-source metadata column that normally carries that name. We can address this conflict with two changes to metadata column handling:
> # Automatically rename any metadata column whose name conflicts with a data schema column
> # Add a facility to reliably find metadata columns by their original/logical name, even if they were renamed.
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscribe@spark.apache.org
For additional commands, e-mail: issues-help@spark.apache.org