GitHub user clarkyzl opened a pull request: https://github.com/apache/flink/pull/3553
[FLINK-6068] [table] Support If() in built in function of TableAPI Type: Improvement Priority: Major Components: table, udf Problem Definition: We didn't register the if() in the function category. We didn't support syntax 'if(a, b, c)'. Design: 1. Register If in function category. 1. Add some tests. Impact Analysis: A newly registered function, without more impacts on others. Test: `mvn clean verify` is done You can merge this pull request into a Git repository by running: $ git pull https://github.com/clarkyzl/flink flink-6068 Alternatively you can review and apply these changes as the patch at: https://github.com/apache/flink/pull/3553.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 #3553 ---- commit fcc82d7ff106af7315d8e0f57993212e8221e9e9 Author: Zhuoluo Yang <zhuoluo....@alibaba-inc.com> Date: 2017-03-16T08:07:33Z [FLINK-6068] [table] Support If() in built in function of TableAPI ---- --- 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. ---