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From GitBox <...@apache.org>
Subject [GitHub] [flink] godfreyhe opened a new pull request #8176: [FLINK-12192] [table-planner-blink] Add support for generating optimized logical plan for grouping sets and distinct aggregate
Date Mon, 15 Apr 2019 08:50:34 GMT
godfreyhe opened a new pull request #8176: [FLINK-12192] [table-planner-blink] Add support
for generating optimized logical plan for grouping sets and distinct aggregate
URL: https://github.com/apache/flink/pull/8176
 
 
   
   ## What is the purpose of the change
   
   *Add support for generating optimized logical plan for grouping sets and distinct aggregate*
   
   
   ## Brief change log
   
     - *extends AggregateExpandDistinctAggregatesRule to fix some bugs *
     - *adds DecomposeGroupingSetsRule to rewrite aggregate with grouping sets into  a regular
aggregate with expand*
   
   
   ## Verifying this change
   
   This change added tests and can be verified as follows:
   
     - *Added GroupingSetsTest that validates queries with grouping sets/cube/rollup*
     - *Added DistinctAggregateTest that validates queries with distinct aggregate*
     - *Addes DecomposeGroupingSetsRuleTest that validates DecomposeGroupingSetsRule*
     - *Addes FlinkAggregateExpandDistinctAggregatesRuleTest that validates FlinkAggregateExpandDistinctAggregatesRule*
   
   ## 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 documented)
   

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