GitHub user rxin opened a pull request: https://github.com/apache/spark/pull/15723
[SPARK-18214][SQL] Simplify RuntimeReplaceable type coercion ## What changes were proposed in this pull request? RuntimeReplaceable is used to create aliases for expressions, but the way it deals with type coercion is pretty weird (each expression is responsible for how to handle type coercion, which does not obey the normal implicit type cast rules). This patch simplifies its handling by allowing the analyzer to traverse into the actual expression of a RuntimeReplaceable. ## How was this patch tested? - Correctness should be guaranteed by existing unit tests already - Removed SQLCompatibilityFunctionSuite and moved it sql-compatibility-functions.sql - Added a new test case in sql-compatibility-functions.sql for verifying explain behavior. You can merge this pull request into a Git repository by running: $ git pull https://github.com/rxin/spark SPARK-18214 Alternatively you can review and apply these changes as the patch at: https://github.com/apache/spark/pull/15723.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 #15723 ---- commit 8cdf56c1191a7fa3a4a567b92c11e1617d0f4f0e Author: Reynold Xin <r...@databricks.com> Date: 2016-11-02T00:33:35Z [SPARK-18214][SQL] Simplify RuntimeReplaceable type coercion ---- --- 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