[jira] [Assigned] (SPARK-29342) Make casting strings to intervals case insensitive

["Dongjoon Hyun (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-29342?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dongjoon Hyun reassigned SPARK-29342:
-------------------------------------

    Assignee: Maxim Gekk

> Make casting strings to intervals case insensitive 
> ---------------------------------------------------
>
>                 Key: SPARK-29342
>                 URL: https://issues.apache.org/jira/browse/SPARK-29342
>             Project: Spark
>          Issue Type: Sub-task
>          Components: SQL
>    Affects Versions: 3.0.0
>            Reporter: Maxim Gekk
>            Assignee: Maxim Gekk
>            Priority: Minor
>
> PostgreSQL is not sensitive to case of interval string values:
> {code}
> maxim=# select cast('10 Days' as INTERVAL);
>  interval 
> ----------
>  10 days
> (1 row)
> {code}
> but Spark is not tolerant to case:
> {code}
> spark-sql> select cast('INTERVAL 10 DAYS' as INTERVAL);
> NULL
> spark-sql> select cast('interval 10 days' as INTERVAL);
> interval 1 weeks 3 days
> {code}
>  



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