[GitHub] [flink] godfreyhe opened a new pull request #8527: [FLINK-12610] [table-planner-blink] Introduce planner rules about aggregate

[GitBox <gi...@apache.org>]

godfreyhe opened a new pull request #8527: [FLINK-12610] [table-planner-blink] Introduce planner rules about aggregate
URL: https://github.com/apache/flink/pull/8527
 
 
   
   ## What is the purpose of the change
   
   *Introduce planner rules about aggregate*
   
   
   ## Brief change log
   
     - *AggregateCalcMergeRule, that recognizes Aggregate on top of a Calc and if possible aggregate through the calc or removes the calc*
     - *AggregateReduceGroupingRule, that reduces unless grouping columns*
     - *PruneAggregateCallRule, that removes unreferenced AggregateCall from Aggregate*
     - *FlinkAggregateRemoveRule, that is copied from Calcite's AggregateRemoveRule, and supports SUM, MIN, MAX, AUXILIARY_GROUP functions in non-empty group aggregate*
     - *FlinkAggregateJoinTransposeRule, that is copied from Calcite's AggregateJoinTransposeRule, and supports Left/Right outer join and aggregate with AUXILIARY_GROUP*
   
   
   ## Verifying this change
   
   This change added tests and can be verified as follows:
   
     - *Added rule tests that validate the logical plan after the added rules are applied*
     - *Added integration tests that validate the execution result the added rules are applied*
   
   ## Does this pull request potentially affect one of the following parts:
   
     - Dependencies (does it add or upgrade a dependency): (yes / **no**)
     - The public API, i.e., is any changed class annotated with `@Public(Evolving)`: (yes / **no**)
     - The serializers: (yes / **no** / don't know)
     - The runtime per-record code paths (performance sensitive): (yes / **no** / don't know)
     - Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Yarn/Mesos, ZooKeeper: (yes / **no** / don't know)
     - The S3 file system connector: (yes / **no** / don't know)
   
   ## Documentation
   
     - Does this pull request introduce a new feature? (yes / **no**)
     - If yes, how is the feature documented? (not applicable / docs / JavaDocs / **not documented**)
   

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