Sameer Agarwal dafcb05c2e [SPARK-15425][SQL] Disallow cross joins by default ... ## What changes were proposed in this pull request? In order to prevent users from inadvertently writing queries with cartesian joins, this patch introduces a new conf `spark.sql.crossJoin.enabled` (set to `false` by default) that if not set, results in a `SparkException` if the query contains one or more cartesian products. ## How was this patch tested? Added a test to verify the new behavior in `JoinSuite`. Additionally, `SQLQuerySuite` and `SQLMetricsSuite` were modified to explicitly enable cartesian products. Author: Sameer Agarwal <sameer@databricks.com> Closes #13209 from sameeragarwal/disallow-cartesian.		2016-05-22 23:32:39 -07:00
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src	[SPARK-15425][SQL] Disallow cross joins by default	2016-05-22 23:32:39 -07:00
pom.xml	[SPARK-15290][BUILD] Move annotations, like @Since / @DeveloperApi, into spark-tags	2016-05-17 09:55:53 +01:00