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https://issues.apache.org/jira/browse/HBASE-2396?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12922746#action_12922746
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Andrew Purtell commented on HBASE-2396:
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In the context of filters (HBASE-1002) we mentioned shipping up jruby
scriptlets as an option for that. Given that HBase already carries the jruby
jar for the shell, this seems a natural choice for that and more. If so it
would be better if after receiving initially a String to execute an
intermediate/compiled form can be cached for savings over repeated invocations,
like http://kenai.com/projects/jruby/pages/JRubyCompiler.
> Coprocessors: consider DSL similar to PL/SQL
> --------------------------------------------
>
> Key: HBASE-2396
> URL: https://issues.apache.org/jira/browse/HBASE-2396
> Project: HBase
> Issue Type: Sub-task
> Reporter: Todd Lipcon
>
> There are a lot of use cases where users want to perform some simple
> operations on the region server. For example, a row may represent a Set and
> users want append/search/remove style operations within the row without
> having to perform the work on the client side. One possible solution is to
> embed a small language something like PL/SQL (not necessarily in syntax)
> which restricts users to a safe set of operations.
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