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https://issues.apache.org/jira/browse/HBASE-6618?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alex Baranau updated HBASE-6618:
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Attachment: HBASE-6618.patch
Looks like Anil didn't find time for that in the end.
But I believe that this functionality is very very useful. Will work on it then.
Attached patch with implemented filter functionality. I have doubts about
filter API (i.e. defining fuzzy rules with Triple<byte[], byte[], byte[]), any
suggestions are very welcome!
> Implement FuzzyRowFilter with ranges support
> --------------------------------------------
>
> Key: HBASE-6618
> URL: https://issues.apache.org/jira/browse/HBASE-6618
> Project: HBase
> Issue Type: New Feature
> Components: Filters
> Reporter: Alex Baranau
> Priority: Minor
> Attachments: HBASE-6618-algo-desc-bits.png, HBASE-6618-algo.patch,
> HBASE-6618.patch
>
>
> Apart from current ability to specify fuzzy row filter e.g. for
> <userId_actionId> format as ????_0004 (where 0004 - actionId) it would be
> great to also have ability to specify the "fuzzy range" , e.g. ????_0004,
> ..., ????_0099.
> See initial discussion here: http://search-hadoop.com/m/WVLJdX0Z65
> Note: currently it is possible to provide multiple fuzzy row rules to
> existing FuzzyRowFilter, but in case when the range is big (contains
> thousands of values) it is not efficient.
> Filter should perform efficient fast-forwarding during the scan (this is what
> distinguishes it from regex row filter).
> While such functionality may seem like a proper fit for custom filter (i.e.
> not including into standard filter set) it looks like the filter may be very
> re-useable. We may judge based on the implementation that will hopefully be
> added.
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