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Aman Sinha commented on DRILL-646:
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Uploaded patch for broadcast-inner plans for hash join and merge join. The behavior is controlled
by a planner option 'planner.enable_broadcast_join' which by default is false for now but
will be enabled later.
> Generate broadcast-inner plans for MergeJoin and HashJoin
> ---------------------------------------------------------
>
> Key: DRILL-646
> URL: https://issues.apache.org/jira/browse/DRILL-646
> Project: Apache Drill
> Issue Type: Bug
> Components: Query Planning & Optimization
> Reporter: Aman Sinha
> Assignee: Aman Sinha
> Attachments: 0001-Broadcast-inner-plans-for-Hash-Join-and-Merge-Join.-.patch
>
>
> We want to be able to generate MergeJoin and HashJoin plans where the inner child is
broadcast and outer child can be left as-is (i.e ANY distribution is acceptable). Such plans
will be compared by cost with plans where both children are hash-distributed or any new plans
that we add.
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