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Posted to dev@hbase.apache.org by "Ferdy (JIRA)" <ji...@apache.org> on 2010/02/10 14:58:27 UTC

[jira] Updated: (HBASE-2211) Add a new Filter that checks a single column value but does not emit it.

     [ https://issues.apache.org/jira/browse/HBASE-2211?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ferdy updated HBASE-2211:
-------------------------

    Status: Patch Available  (was: Open)

> Add a new Filter that checks a single column value but does not emit it.
> ------------------------------------------------------------------------
>
>                 Key: HBASE-2211
>                 URL: https://issues.apache.org/jira/browse/HBASE-2211
>             Project: Hadoop HBase
>          Issue Type: New Feature
>    Affects Versions: 0.20.3
>            Reporter: Ferdy
>         Attachments: HBASE-2211.patch
>
>
> Performance wise, it may be necessary for a filter to test a column for a specific value (like SingleColumnValueFilter) , but exclude the KeyValue from the output. This is certainly the case when the column values are large in size.
> In order to keep SingleColumnValueFilter simple and maintainable, I decided to subclass it. SingleColumnValueExcludeFilter is the result. Tests are included.

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