[jira] Commented: (HBASE-1807) KeyFilter for filtering based on comparsions of row, column, and qualifiers of KeyValues

["Jonathan Gray (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-1807?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12749973#action_12749973 ] 

Jonathan Gray commented on HBASE-1807:
--------------------------------------

This patch looks excellent, Andrew! 

I'm working on some other filters right now, but could probably work them into the key filter (regex, for example, would just be a WritableByteArrayComparable?)

We need tests and should probably put some usage documentation in the filter package overview.  I'm planning on spending time with filters today so if you don't have time let me know and I can build on your patch today.

> KeyFilter for filtering based on comparsions of row, column, and qualifiers of KeyValues
> ----------------------------------------------------------------------------------------
>
>                 Key: HBASE-1807
>                 URL: https://issues.apache.org/jira/browse/HBASE-1807
>             Project: Hadoop HBase
>          Issue Type: New Feature
>            Reporter: Andrew Purtell
>            Assignee: Andrew Purtell
>            Priority: Minor
>             Fix For: 0.20.0
>
>         Attachments: HBASE-1807.patch
>
>
> From: Angus He up on hbase-user:
> {quote}
> Subject: Is there any ways to retrieve values whose columns match specific regular expression?
> Is this functionality available in the current implementation? If not, is there any plans on this?
> {quote}
> See attached patch. Low impact change, can go into 0.20.0. 

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