[jira] [Resolved] (SPARK-50262) Forbid change complex types during altering collation

["Wenchen Fan (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-50262?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Wenchen Fan resolved SPARK-50262.
---------------------------------
    Fix Version/s: 4.0.0
       Resolution: Fixed

Issue resolved by pull request 48803
[https://github.com/apache/spark/pull/48803]

> Forbid change complex types during altering collation
> -----------------------------------------------------
>
>                 Key: SPARK-50262
>                 URL: https://issues.apache.org/jira/browse/SPARK-50262
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 4.0.0
>            Reporter: Aleksei Shishkin
>            Assignee: Aleksei Shishkin
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 4.0.0
>
>
> SPARK-48413 has brought ability to change collation on table.
> But it seems to be too wide, because people couldn't change the whole StructType/MapType/ArrayType by altering before.
> Right now there is found problem with altering collation when table has metadata. Altering will be failed because of a metadata mismatch between user's type (that doesn't have metadata) and existing schema.
> So I suggest to shrink the feature to only leaf string types.
> People will be able to change any collation still, but they need to use full column path:
> {code:sql}
> ALTER TABLE table ALTER COLUMN full.column.path TYPE STRING COLLATE UNICODE
> {code}



--
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