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https://issues.apache.org/jira/browse/HBASE-12452?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14283491#comment-14283491
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He Liangliang commented on HBASE-12452:
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use cases added.
> Add regular expression based split policy
> -----------------------------------------
>
> Key: HBASE-12452
> URL: https://issues.apache.org/jira/browse/HBASE-12452
> Project: HBase
> Issue Type: Improvement
> Components: regionserver
> Reporter: He Liangliang
> Assignee: He Liangliang
> Priority: Minor
> Attachments: HBASE-12452-V2.patch, HBASE-12452.patch
>
>
> The current DelimitedKeyPrefixRegionSplitPolicy split policy is not flexible
> enough to describe the split point prefix in some case. A regex based split
> policy is proposed, for example:
> ^[^\x00]+\x00[^\x00]+\x00
> means the split point will always be truncated to a prefix at the second \0
> char.
> The binary string support is quite useful when the rowkey encoded by a common
> data access library instead of concatenated manually by application developer.
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