GitHub user dianfu opened a pull request: https://github.com/apache/flink/pull/5027
[FLINK-8097] [table] Add built-in support for min/max aggregation for Date/Time ## What is the purpose of the change *This PR adds built-in support for min/max aggregation for Date/Time* ## Verifying this change - *Added tests in MaxAggFunctionTest, MaxWithRetractAggFunctionTest, MinAggFunctionTest, MinWithRetractAggFunctionTest* ## Does this pull request potentially affect one of the following parts: - Dependencies (does it add or upgrade a dependency): (no) - The public API, i.e., is any changed class annotated with `@Public(Evolving)`: (no) - The serializers: (no) - The runtime per-record code paths (performance sensitive): (no) - Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Yarn/Mesos, ZooKeeper: (no) - The S3 file system connector: (no) ## Documentation - Does this pull request introduce a new feature? (no) - If yes, how is the feature documented? (not applicable) You can merge this pull request into a Git repository by running: $ git pull https://github.com/dianfu/flink FLINK-8097 Alternatively you can review and apply these changes as the patch at: https://github.com/apache/flink/pull/5027.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 #5027 ---- commit 7c0cf68279570cb8f8bd00e18b8fb38de943a645 Author: Dian Fu <fudian...@alibaba-inc.com> Date: 2017-11-17T05:22:47Z [FLINK-8097] [table] Add built-in support for min/max aggregation for Date/Time ---- ---