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Posted to issues@flink.apache.org by GitBox <gi...@apache.org> on 2021/01/10 06:47:20 UTC
[GitHub] [flink] beyond1920 opened a new pull request #14602: [FLINK-20345][table-planner-blink] Adds an Expand node only if there are multiple distinct aggregate functions in an Aggregate when executes SplitAggregateRule
beyond1920 opened a new pull request #14602:
URL: https://github.com/apache/flink/pull/14602
## What is the purpose of the change
An `Expand` node is only necessary when multiple aggregate function with different distinct keys appear in an Aggregate. However an unnecessary `Expand` node will be generated under some special cases, like the following sql.
SELECT COUNT(c) AS pv, COUNT(DISTINCT c) AS uv FROM T GROUP BY a.
This pull request aims to avoid generate unnecessary `Expand` node.
## Brief change log
- `SplitAggregateRule` check only need expand if there are multiple distinct aggregate functions in an Aggregate
## Verifying this change
This change is already covered by existing tests, such as `SplitAggregateITCase`, `DistinctAggregateTest`, `SplitAggregateRuleTest` . Besides, this change added IT and UT in `SplitAggregateITCase` and `SplitAggregateRuleTest`
## 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, Kubernetes/Yarn/Mesos, ZooKeeper: (no)
- The S3 file system connector: (no)
## Documentation
- Does this pull request introduce a new feature? (no)
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[GitHub] [flink] flinkbot edited a comment on pull request #14602: [FLINK-20345][table-planner-blink] Adds an Expand node only if there are multiple distinct aggregate functions in an Aggregate when executes SplitAggregateRule
Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #14602:
URL: https://github.com/apache/flink/pull/14602#issuecomment-757429107
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## CI report:
* c8b66d4fc917b9e9627e1dff1acb3095301408f2 Azure: [SUCCESS](https://dev.azure.com/apache-flink/98463496-1af2-4620-8eab-a2ecc1a2e6fe/_build/results?buildId=12737)
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[GitHub] [flink] flinkbot edited a comment on pull request #14602: [FLINK-20345][table-planner-blink] Adds an Expand node only if there are multiple distinct aggregate functions in an Aggregate when executes SplitAggregateRule
Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #14602:
URL: https://github.com/apache/flink/pull/14602#issuecomment-757429107
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## CI report:
* a71f6e566fc51fbaf1fcd9a426b7e27b4e1f6c42 Azure: [SUCCESS](https://dev.azure.com/apache-flink/98463496-1af2-4620-8eab-a2ecc1a2e6fe/_build/results?buildId=11863)
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[GitHub] [flink] JingsongLi merged pull request #14602: [FLINK-20345][table-planner-blink] Adds an Expand node only if there are multiple distinct aggregate functions in an Aggregate when executes SplitAggregateRule
Posted by GitBox <gi...@apache.org>.
JingsongLi merged pull request #14602:
URL: https://github.com/apache/flink/pull/14602
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[GitHub] [flink] flinkbot edited a comment on pull request #14602: [FLINK-20345][table-planner-blink] Adds an Expand node only if there are multiple distinct aggregate functions in an Aggregate when executes SplitAggregateRule
Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #14602:
URL: https://github.com/apache/flink/pull/14602#issuecomment-757427203
Thanks a lot for your contribution to the Apache Flink project. I'm the @flinkbot. I help the community
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## Automated Checks
Last check on commit c8b66d4fc917b9e9627e1dff1acb3095301408f2 (Fri May 28 08:15:45 UTC 2021)
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[GitHub] [flink] flinkbot edited a comment on pull request #14602: [FLINK-20345][table-planner-blink] Adds an Expand node only if there are multiple distinct aggregate functions in an Aggregate when executes SplitAggregateRule
Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #14602:
URL: https://github.com/apache/flink/pull/14602#issuecomment-757429107
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## CI report:
* a71f6e566fc51fbaf1fcd9a426b7e27b4e1f6c42 Azure: [SUCCESS](https://dev.azure.com/apache-flink/98463496-1af2-4620-8eab-a2ecc1a2e6fe/_build/results?buildId=11863)
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[GitHub] [flink] JingsongLi merged pull request #14602: [FLINK-20345][table-planner-blink] Adds an Expand node only if there are multiple distinct aggregate functions in an Aggregate when executes SplitAggregateRule
Posted by GitBox <gi...@apache.org>.
JingsongLi merged pull request #14602:
URL: https://github.com/apache/flink/pull/14602
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[GitHub] [flink] flinkbot edited a comment on pull request #14602: [FLINK-20345][table-planner-blink] Adds an Expand node only if there are multiple distinct aggregate functions in an Aggregate when executes SplitAggregateRule
Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #14602:
URL: https://github.com/apache/flink/pull/14602#issuecomment-757429107
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## CI report:
* a46ed68b301d96a6a26c3b7cb8899568ad81a7c8 Azure: [FAILURE](https://dev.azure.com/apache-flink/98463496-1af2-4620-8eab-a2ecc1a2e6fe/_build/results?buildId=11852)
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[GitHub] [flink] flinkbot commented on pull request #14602: [FLINK-20345][table-planner-blink] Adds an Expand node only if there are multiple distinct aggregate functions in an Aggregate when executes SplitAggregateRule
Posted by GitBox <gi...@apache.org>.
flinkbot commented on pull request #14602:
URL: https://github.com/apache/flink/pull/14602#issuecomment-757427203
Thanks a lot for your contribution to the Apache Flink project. I'm the @flinkbot. I help the community
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## Automated Checks
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[GitHub] [flink] flinkbot edited a comment on pull request #14602: [FLINK-20345][table-planner-blink] Adds an Expand node only if there are multiple distinct aggregate functions in an Aggregate when executes SplitAggregateRule
Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #14602:
URL: https://github.com/apache/flink/pull/14602#issuecomment-757429107
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* a71f6e566fc51fbaf1fcd9a426b7e27b4e1f6c42 Azure: [PENDING](https://dev.azure.com/apache-flink/98463496-1af2-4620-8eab-a2ecc1a2e6fe/_build/results?buildId=11863)
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[GitHub] [flink] flinkbot edited a comment on pull request #14602: [FLINK-20345][table-planner-blink] Adds an Expand node only if there are multiple distinct aggregate functions in an Aggregate when executes SplitAggregateRule
Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #14602:
URL: https://github.com/apache/flink/pull/14602#issuecomment-757429107
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## CI report:
* a71f6e566fc51fbaf1fcd9a426b7e27b4e1f6c42 Azure: [SUCCESS](https://dev.azure.com/apache-flink/98463496-1af2-4620-8eab-a2ecc1a2e6fe/_build/results?buildId=11863)
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[GitHub] [flink] beyond1920 commented on pull request #14602: [FLINK-20345][table-planner-blink] Adds an Expand node only if there are multiple distinct aggregate functions in an Aggregate when executes SplitAggregateRule
Posted by GitBox <gi...@apache.org>.
beyond1920 commented on pull request #14602:
URL: https://github.com/apache/flink/pull/14602#issuecomment-770761524
@JingsongLi Done. please have a look, thanks.
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[GitHub] [flink] flinkbot edited a comment on pull request #14602: [FLINK-20345][table-planner-blink] Adds an Expand node only if there are multiple distinct aggregate functions in an Aggregate when executes SplitAggregateRule
Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #14602:
URL: https://github.com/apache/flink/pull/14602#issuecomment-757429107
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[GitHub] [flink] flinkbot commented on pull request #14602: [FLINK-20345][table-planner-blink] Adds an Expand node only if there are multiple distinct aggregate functions in an Aggregate when executes SplitAggregateRule
Posted by GitBox <gi...@apache.org>.
flinkbot commented on pull request #14602:
URL: https://github.com/apache/flink/pull/14602#issuecomment-757429107
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[GitHub] [flink] flinkbot edited a comment on pull request #14602: [FLINK-20345][table-planner-blink] Adds an Expand node only if there are multiple distinct aggregate functions in an Aggregate when executes SplitAggregateRule
Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #14602:
URL: https://github.com/apache/flink/pull/14602#issuecomment-757429107
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## CI report:
* a46ed68b301d96a6a26c3b7cb8899568ad81a7c8 Azure: [FAILURE](https://dev.azure.com/apache-flink/98463496-1af2-4620-8eab-a2ecc1a2e6fe/_build/results?buildId=11852)
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