[jira] [Resolved] (SPARK-41456) Improve the performance of try_cast

["Gengliang Wang (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-41456?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gengliang Wang resolved SPARK-41456.
------------------------------------
    Fix Version/s: 3.4.0
       Resolution: Fixed

Issue resolved by pull request 38988
[https://github.com/apache/spark/pull/38988]

> Improve the performance of try_cast
> -----------------------------------
>
>                 Key: SPARK-41456
>                 URL: https://issues.apache.org/jira/browse/SPARK-41456
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 3.4.0
>            Reporter: Gengliang Wang
>            Assignee: Gengliang Wang
>            Priority: Major
>             Fix For: 3.4.0
>
>
> For try_cast and the legacy cast (cast with ANSI SQL mode off), there are conversion which has the same behaviors:
>  * cast(string as date/timestamp/TimestampNTZ)
>  * cast(string as double/float/decimal)
> So, the try_cast can be faster if it uses the evaluation code path of the legacy cast, instead of turning into ANSI cast and catching exceptions.



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