[jira] [Assigned] (FLINK-34477) support capture groups in REGEXP_REPLACE

["Jing Ge (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-34477?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jing Ge reassigned FLINK-34477:
-------------------------------

    Assignee: Jeyhun Karimov

> support capture groups in REGEXP_REPLACE
> ----------------------------------------
>
>                 Key: FLINK-34477
>                 URL: https://issues.apache.org/jira/browse/FLINK-34477
>             Project: Flink
>          Issue Type: Improvement
>          Components: Table SQL / API
>    Affects Versions: 1.18.1
>            Reporter: David Anderson
>            Assignee: Jeyhun Karimov
>            Priority: Major
>              Labels: pull-request-available
>
> For example, I would expect this query
> {code:java}
> select REGEXP_REPLACE('ERR1,ERR2', '([^,]+)', 'AA$1AA'); {code}
> to produce
> {code:java}
> AAERR1AA,AAERR2AA{code}
> but instead it produces
> {code:java}
> AA$1AA,AA$1AA{code}
> With FLINK-9990 support was added for REGEXP_EXTRACT, which does provide access to the capture groups, but for many use cases supporting this in the way that users expect, in REGEXP_REPLACE, would be more natural and convenient.



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