sujith71955 commented on a change in pull request #22758: [SPARK-25332][SQL]
select broadcast join instead of sortMergeJoin for the small size table even
query fired via new session/context
URL: https://github.com/apache/spark/pull/22758#discussion_r266304441
##########
File path:
sql/hive/src/main/scala/org/apache/spark/sql/hive/HiveMetastoreCatalog.scala
##########
@@ -193,6 +193,16 @@ private[hive] class HiveMetastoreCatalog(sparkSession:
SparkSession) extends Log
None)
val logicalRelation = cached.getOrElse {
val updatedTable = inferIfNeeded(relation, options, fileFormat)
+ // Intialize the catalogTable stats if its not defined.An intial
value has to be defined
+ // so that the hive statistics will be updated after each insert
command.
+ val withStats = {
+ if (updatedTable.stats == None) {
Review comment:
> @wangyum, so it is basically subset of #22721? It's funny that Hive tables
should set the initial stats alone here, which is supposed to be set somewhere
else.
Bit old PR :), will go through the problem once again and let you know more
concide details. i remeber i struggled a lot for handing this issue :) Please
let me know for any inputs if this way of handling is wrong.
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