GitHub user cloud-fan opened a pull request: https://github.com/apache/spark/pull/16080
[SPARK-18647][SQL] do not put provider in table properties for Hive serde table ## What changes were proposed in this pull request? In Spark 2.1, we make Hive serde tables case-preserving by putting the table metadata in table properties, like what we did for data source table. However, we should not put table provider, as it will break forward compatibility. e.g. if we create a Hive serde table with Spark 2.1, using `sql("create table test stored as parquet as select 1")`, we will fail to read it with Spark 2.0, as Spark 2.0 mistakenly treat it as data source table because there is a `provider` entry in table properties. Logically Hive serde table's provider is always hive, we don't need to store it in table properties, this PR removes it. ## How was this patch tested? manually test the forward compatibility issue. You can merge this pull request into a Git repository by running: $ git pull https://github.com/cloud-fan/spark hive Alternatively you can review and apply these changes as the patch at: https://github.com/apache/spark/pull/16080.patch To close this pull request, make a commit to your master/trunk branch with (at least) the following in the commit message: This closes #16080 ---- commit 89f1625b35ef21799e5d0d815dc18e23f3fd8106 Author: Wenchen Fan <wenc...@databricks.com> Date: 2016-11-30T11:17:13Z do not put provider in table properties for Hive serde table ---- --- If your project is set up for it, you can reply to this email and have your reply appear on GitHub as well. If your project does not have this feature enabled and wishes so, or if the feature is enabled but not working, please contact infrastructure at infrastruct...@apache.org or file a JIRA ticket with INFRA. --- --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org