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From "Nick Dimiduk (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-10789) Add NumberComparator
Date Wed, 19 Mar 2014 18:29:43 GMT

    [ https://issues.apache.org/jira/browse/HBASE-10789?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13940797#comment-13940797
] 

Nick Dimiduk commented on HBASE-10789:
--------------------------------------

DataType-aware filters are also on my todo list, though I wanted to get a little further along
down that road before speculating about them. The advantage of using an order-preserving encoding
(like {{OrderedBytes}}) is that the data is ordered this way by HBase and these filters can
efficiently skip over swaths of data (depending on the use-case). There's definitely more
to explore here.

For the time being, it makes sense to have filters that support the different encoding formats
produced by {{Bytes}}, but I think this is the wrong level of abstraction for the long run.

> Add NumberComparator
> --------------------
>
>                 Key: HBASE-10789
>                 URL: https://issues.apache.org/jira/browse/HBASE-10789
>             Project: HBase
>          Issue Type: Improvement
>          Components: Filters
>            Reporter: haosdent
>            Assignee: haosdent
>
> Sometimes user may want to filter out which value less than a positive number. But they
finally would get a result contains negative number.



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