Github user mallman commented on a diff in the pull request: https://github.com/apache/spark/pull/13818#discussion_r69231754 --- Diff: sql/hive/src/main/scala/org/apache/spark/sql/hive/execution/InsertIntoHiveTable.scala --- @@ -298,6 +298,7 @@ case class InsertIntoHiveTable( // Invalidate the cache. sqlContext.sharedState.cacheManager.invalidateCache(table) + sqlContext.sessionState.catalog.invalidateTable(table.catalogTable.identifier) --- End diff -- Essentially this is a "callback" to the session catalog to invalidate this table in the catalog's table cache, because we just appended to the underlying table data. In the context of a Hive query, the session catalog's table cache is `HiveMetastoreCatalog.cachedDataSourceTables`. The results of the `INSERT` will be invisible in the current session until the table is invalidated. Another way to think about this code is that it's precisely what makes the following test snippet work: https://github.com/VideoAmp/spark-public/blob/spark-15968/sql/hive/src/test/scala/org/apache/spark/sql/hive/parquetSuites.scala#L582-L585 Does that answer your question?
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