Github user dongjoon-hyun commented on a diff in the pull request: https://github.com/apache/spark/pull/19560#discussion_r146319070 --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala --- @@ -187,6 +187,15 @@ object SQLConf { .booleanConf .createWithDefault(false) + val VERIFY_STATS_FROM_HDFS_WHEN_BROADCASTJOIN = + buildConf("spark.sql.statistics.verifyStatsFromHdfsWhenBroadcastJoin") + .doc("If table size in metastore is below spark.sql.autoBroadcastJoinThreshold, check the " + + "size on Hdfs and set table size to be the bigger one. This is for defense and help avoid" + + " OOM caused by broadcast join. It's useful when metastore failed to update the stats of" + --- End diff -- Hi, @jinxing64 . Is this helpful for highly compressed Parquet tables, too?
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