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Posted to issues@hive.apache.org by "David Mollitor (Jira)" <ji...@apache.org> on 2020/04/10 18:57:00 UTC

[jira] [Updated] (HIVE-23176) Remove REGEX Column Feature

     [ https://issues.apache.org/jira/browse/HIVE-23176?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

David Mollitor updated HIVE-23176:
----------------------------------
    Status: Patch Available  (was: Open)

> Remove REGEX Column Feature
> ---------------------------
>
>                 Key: HIVE-23176
>                 URL: https://issues.apache.org/jira/browse/HIVE-23176
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: David Mollitor
>            Assignee: David Mollitor
>            Priority: Major
>         Attachments: HIVE-23176.1.patch
>
>
> Remove the Hive feature: REGEX Column.
>  
> Hive has this interesting feature for doing REGEX to SELECT multiple columns.  This needs to go.  It is not SQL standard and as currently implemented, it is impossible to determine if a column identifier is a REGEX or the actual name of the column.  If a column name is enclosed in back ticks then any UTF-8 character is a valid table name.
>  
> [https://dev.mysql.com/doc/refman/8.0/en/identifiers.html]
> [https://cwiki.apache.org/confluence/display/Hive/LanguageManual+Select]



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