GitHub user andrewor14 opened a pull request:
https://github.com/apache/spark/pull/13341
[SPARK-15583][SQL] Disallow altering datasource properties
## What changes were proposed in this pull request?
Certain table properties (and SerDe properties) are in the protected
namespace `spark.sql.sources.`, which we use internally for datasource tables.
The user should not be allowed to
(1) Create a Hive table setting these properties
(2) Alter these properties in an existing table
Previously, we threw an exception if the user tried to alter the properties
of an existing datasource table. However, this is overly restrictive for
datasource tables and does not do anything for Hive tables.
## How was this patch tested?
DDLSuite
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/andrewor14/spark alter-table-props
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/13341.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 #13341
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commit 9e9a630ec20ee1d569dedd50fb4893f5bd50dc7c
Author: Andrew Or <[email protected]>
Date: 2016-05-26T23:29:43Z
Disallow altering datasource properties
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