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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