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Brock Noland commented on HIVE-7613: ------------------------------------ Note that MapJoin is a stretch goal of M1 and a specific goal of M2. > Research optimization of auto convert join to map join[Spark branch] > -------------------------------------------------------------------- > > Key: HIVE-7613 > URL: https://issues.apache.org/jira/browse/HIVE-7613 > Project: Hive > Issue Type: Task > Components: Spark > Reporter: Chengxiang Li > Priority: Minor > > ConvertJoinMapJoin is an optimization the replaces a common join(aka shuffle > join) with a map join(aka broadcast or fragment replicate join) when > possible. we need to research how to make it workable with Hive on Spark. -- This message was sent by Atlassian JIRA (v6.2#6252)