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Lianhui Wang commented on SPARK-15616: -------------------------------------- Yes, I think it can. But now the PR is based on branch 2.0, not branch master. I will update it based on branch master later. > Metastore relation should fallback to HDFS size of partitions that are > involved in Query if statistics are not available. > ------------------------------------------------------------------------------------------------------------------------- > > Key: SPARK-15616 > URL: https://issues.apache.org/jira/browse/SPARK-15616 > Project: Spark > Issue Type: Improvement > Components: SQL > Reporter: Lianhui Wang > > Currently if some partitions of a partitioned table are used in join > operation we rely on Metastore returned size of table to calculate if we can > convert the operation to Broadcast join. > if Filter can prune some partitions, Hive can prune partition before > determining to use broadcast joins according to HDFS size of partitions that > are involved in Query.So sparkSQL needs it that can improve join's > performance for partitioned table. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org