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https://issues.apache.org/jira/browse/HIVE-3133?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Navis updated HIVE-3133:
------------------------
Status: Patch Available (was: Open)
https://reviews.facebook.net/D4137
It's not completed yet, but I expect feedback what missed.
> Implement non-equi mapjoin
> --------------------------
>
> Key: HIVE-3133
> URL: https://issues.apache.org/jira/browse/HIVE-3133
> Project: Hive
> Issue Type: Improvement
> Components: Query Processor, SQL
> Affects Versions: 0.10.0
> Reporter: Navis
> Assignee: Navis
> Priority: Minor
>
> Currently, hive supports only equi-join which means all joining columns
> should be related only with equal operator(= or <=>).
> It seemed to be not easy to provide non-equi join in general manner but if
> one of table is small enough to be fit in memory, it might be possible to be
> implemented rather easily by exploiting current implementation of MapJoin.
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