[jira] [Commented] (SPARK-36544) Special strings for dates are no longer automatically converted without the "date" keyword

["Kousuke Saruta (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-36544?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17402366#comment-17402366 ] 

Kousuke Saruta commented on SPARK-36544:
----------------------------------------

[~laurikoobas]
The behavior was changed. See SPARK-35581.

> Special strings for dates are no longer automatically converted without the "date" keyword
> ------------------------------------------------------------------------------------------
>
>                 Key: SPARK-36544
>                 URL: https://issues.apache.org/jira/browse/SPARK-36544
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 3.1.2
>         Environment: Databricks Runtime 9.0
>            Reporter: Lauri Koobas
>            Priority: Major
>
> Comparison of a date type and a special string fail with DBR 9.0.
> Works in earlier versions, returns "false":
>  {{select current_date > 'today'}}
> With DBR 9.0 the same query returns "null"
> Version that works in DBR 9.0:
> {{select current_date > *date* 'today'}}
> It's especially bad because people have written a lot of queries without using this keyword and now all of those queries just silently fail as the comparison returns a NULL.
> Works (or rather fails) in the same way with all comparison operations.



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