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Posted to issues@flink.apache.org by GitBox <gi...@apache.org> on 2022/07/23 07:39:52 UTC
[GitHub] [flink] luoyuxia opened a new pull request, #20347: [FLINK-27620][sql] Flink SQL supports PERCENT_RANK function
luoyuxia opened a new pull request, #20347:
URL: https://github.com/apache/flink/pull/20347
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## What is the purpose of the change
To support PERCENT_RANK function
## Brief change log
- Add implementation for [PERCENT_RANK]()
## Verifying this change
[UT]() for PERCENT_RANK
## 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, Kubernetes/Yarn, 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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[GitHub] [flink] luoyuxia commented on a diff in pull request #20347: [FLINK-27620][sql] Flink SQL supports PERCENT_RANK function
Posted by GitBox <gi...@apache.org>.
luoyuxia commented on code in PR #20347:
URL: https://github.com/apache/flink/pull/20347#discussion_r928537444
##########
flink-table/flink-table-planner/src/main/scala/org/apache/flink/table/planner/plan/utils/AggFunctionFactory.scala:
##########
@@ -105,6 +105,13 @@ class AggFunctionFactory(
throw new TableException("CUME_DIST Function is not supported in stream mode.")
}
+ case a: SqlRankFunction if a.getKind == SqlKind.PERCENT_RANK =>
+ if (isBounded) {
+ createPercentRankAggFunction(argTypes)
+ } else {
+ throw new TableException("PERCENT_RANK Function is not supported in batch mode.")
Review Comment:
Yes, `PERCENT_RANK` need to know the size of window partition. But in stream mode, we can't know the size as the data is unbounded.
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[GitHub] [flink] wuchong merged pull request #20347: [FLINK-27620][sql] Flink SQL supports PERCENT_RANK function
Posted by GitBox <gi...@apache.org>.
wuchong merged PR #20347:
URL: https://github.com/apache/flink/pull/20347
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[GitHub] [flink] nyingping commented on a diff in pull request #20347: [FLINK-27620][sql] Flink SQL supports PERCENT_RANK function
Posted by GitBox <gi...@apache.org>.
nyingping commented on code in PR #20347:
URL: https://github.com/apache/flink/pull/20347#discussion_r928542593
##########
flink-table/flink-table-planner/src/main/scala/org/apache/flink/table/planner/plan/utils/AggFunctionFactory.scala:
##########
@@ -105,6 +105,13 @@ class AggFunctionFactory(
throw new TableException("CUME_DIST Function is not supported in stream mode.")
}
+ case a: SqlRankFunction if a.getKind == SqlKind.PERCENT_RANK =>
+ if (isBounded) {
+ createPercentRankAggFunction(argTypes)
+ } else {
+ throw new TableException("PERCENT_RANK Function is not supported in batch mode.")
Review Comment:
Yeah, I mean the exception cue is 'batch mode'.
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[GitHub] [flink] nyingping commented on a diff in pull request #20347: [FLINK-27620][sql] Flink SQL supports PERCENT_RANK function
Posted by GitBox <gi...@apache.org>.
nyingping commented on code in PR #20347:
URL: https://github.com/apache/flink/pull/20347#discussion_r928516366
##########
flink-table/flink-table-planner/src/main/scala/org/apache/flink/table/planner/plan/utils/AggFunctionFactory.scala:
##########
@@ -105,6 +105,13 @@ class AggFunctionFactory(
throw new TableException("CUME_DIST Function is not supported in stream mode.")
}
+ case a: SqlRankFunction if a.getKind == SqlKind.PERCENT_RANK =>
+ if (isBounded) {
+ createPercentRankAggFunction(argTypes)
+ } else {
+ throw new TableException("PERCENT_RANK Function is not supported in batch mode.")
Review Comment:
`is not supported in stream mode` ?
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[GitHub] [flink] flinkbot commented on pull request #20347: [FLINK-27620][sql] Flink SQL supports PERCENT_RANK function
Posted by GitBox <gi...@apache.org>.
flinkbot commented on PR #20347:
URL: https://github.com/apache/flink/pull/20347#issuecomment-1193080922
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## CI report:
* 798d33e20f47c3228d7c9c85cae3bbc722ab005e UNKNOWN
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[GitHub] [flink] luoyuxia commented on a diff in pull request #20347: [FLINK-27620][sql] Flink SQL supports PERCENT_RANK function
Posted by GitBox <gi...@apache.org>.
luoyuxia commented on code in PR #20347:
URL: https://github.com/apache/flink/pull/20347#discussion_r928720016
##########
flink-table/flink-table-planner/src/main/scala/org/apache/flink/table/planner/plan/utils/AggFunctionFactory.scala:
##########
@@ -105,6 +105,13 @@ class AggFunctionFactory(
throw new TableException("CUME_DIST Function is not supported in stream mode.")
}
+ case a: SqlRankFunction if a.getKind == SqlKind.PERCENT_RANK =>
+ if (isBounded) {
+ createPercentRankAggFunction(argTypes)
+ } else {
+ throw new TableException("PERCENT_RANK Function is not supported in batch mode.")
Review Comment:
Thanks for pointing it.
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