[jira] [Assigned] (SPARK-44313) Generated column expression validation fails if there is a char/varchar column anywhere in the schema

["Kent Yao (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-44313?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kent Yao reassigned SPARK-44313:
--------------------------------

    Assignee: Allison Portis

> Generated column expression validation fails if there is a char/varchar column anywhere in the schema
> -----------------------------------------------------------------------------------------------------
>
>                 Key: SPARK-44313
>                 URL: https://issues.apache.org/jira/browse/SPARK-44313
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 3.4.0, 3.4.1
>            Reporter: Allison Portis
>            Assignee: Allison Portis
>            Priority: Major
>
> When validating generated column expressions, this call https://github.com/apache/spark/blob/master/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/util/GeneratedColumn.scala#L123 to checkAnalysis fails when there are char or varchar columns anywhere in the schema.
>  
> For example, this query will fail
> {code:java}
> CREATE TABLE default.example (
>     name VARCHAR(64),
>     tstamp TIMESTAMP,
>     tstamp_date DATE GENERATED ALWAYS AS (CAST(tstamp as DATE))
> ){code}
>  



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