Github user brandonJY commented on a diff in the pull request:
https://github.com/apache/spark/pull/20325#discussion_r162837134
--- Diff: docs/sql-programming-guide.md ---
@@ -580,6 +580,9 @@ default local Hive metastore (using Derby) for you.
Unlike the `createOrReplaceT
Hive metastore. Persistent tables will still exist even after your Spark
program has restarted, as
long as you maintain your connection to the same metastore. A DataFrame
for a persistent table can
be created by calling the `table` method on a `SparkSession` with the name
of the table.
+Notice that for `DataFrames` is built on Hive table, `insertInto` should
be used instead of `saveAsTable`.
--- End diff --
Ah, I see. In that case, I don't see the necessary to mention `insertInto`
in this doc any more. I am closing this PR. Feel free to reopen it if
necessary.
I would also suggest to mark
https://issues.apache.org/jira/browse/SPARK-22808 as reolvsed and linked it to
https://issues.apache.org/jira/browse/SPARK-19152
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