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https://issues.apache.org/jira/browse/HBASE-10342?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16473288#comment-16473288
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Lars Hofhansl commented on HBASE-10342:
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I was just thinking about this and was about to file a Jira with the idea. Then
I came across this.
I take it that nothing has happened here... :)
This would be useful in many scenarios (prefix bloomfilters can be used for
seeks) and perhaps specifically for Phoenix, which never uses Get's anywhere.
[~jamestaylor], [~apurtell]
One could start with something simple that simply defines a fix length
prefix... Perhaps allow loading a transformer class or something.
> RowKey Prefix Bloom Filter
> --------------------------
>
> Key: HBASE-10342
> URL: https://issues.apache.org/jira/browse/HBASE-10342
> Project: HBase
> Issue Type: New Feature
> Reporter: Liyin Tang
> Priority: Major
>
> When designing HBase schema for some use cases, it is quite common to combine
> multiple information within the RowKey. For instance, assuming that rowkey is
> constructed as md5(id1) + id1 + id2, and user wants to scan all the rowkeys
> which starting by id1. In such case, the rowkey bloom filter is able to cut
> more unnecessary seeks during the scan.
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