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Posted to issues@kylin.apache.org by GitBox <gi...@apache.org> on 2021/03/26 07:36:29 UTC
[GitHub] [kylin] zzcclp opened a new pull request #1619: KYLIN-4936 Exactly aggregation can't transform to project
zzcclp opened a new pull request #1619:
URL: https://github.com/apache/kylin/pull/1619
## Proposed changes
Describe the big picture of your changes here to communicate to the maintainers why we should accept this pull request. If it fixes a bug or resolves a feature request, be sure to link to that issue.
## Types of changes
What types of changes does your code introduce to Kylin?
_Put an `x` in the boxes that apply_
- [ ] Bugfix (non-breaking change which fixes an issue)
- [ ] New feature (non-breaking change which adds functionality)
- [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
- [ ] Documentation Update (if none of the other choices apply)
## Checklist
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- [ ] I have create an issue on [Kylin's jira](https://issues.apache.org/jira/browse/KYLIN), and have described the bug/feature there in detail
- [ ] Commit messages in my PR start with the related jira ID, like "KYLIN-0000 Make Kylin project open-source"
- [ ] Compiling and unit tests pass locally with my changes
- [ ] I have added tests that prove my fix is effective or that my feature works
- [ ] If this change need a document change, I will prepare another pr against the `document` branch
- [ ] Any dependent changes have been merged
## Further comments
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[GitHub] [kylin] zhengshengjun commented on a change in pull request #1619: KYLIN-4936 Exactly aggregation can't transform to project
Posted by GitBox <gi...@apache.org>.
zhengshengjun commented on a change in pull request #1619:
URL: https://github.com/apache/kylin/pull/1619#discussion_r602889485
##########
File path: kylin-spark-project/kylin-spark-query/src/main/scala/org/apache/kylin/query/runtime/plans/AggregatePlan.scala
##########
@@ -53,10 +53,32 @@ object AggregatePlan extends LogEx {
.map(groupId => col(schemaNames.apply(groupId)))
.toList
- if (rel.getContext != null && rel.getContext.isExactlyAggregate) {
+ rel.getContext.isExactlyAggregate = isExactlyCuboidMatched(rel, groupList)
+ if (rel.getContext.isExactlyAggregate) {
// exactly match, skip agg, direct project.
- val aggCols = rel.getRewriteAggCalls.asScala
- .map(call => col(schemaNames.apply(call.getArgList.get(0)))).toList
+ val hash = System.identityHashCode(rel).toString
+ val aggCols = rel.getRewriteAggCalls.asScala.zipWithIndex.map {
+ case (call: KylinAggregateCall, index: Int)
+ if OLAPAggregateRel.getAggrFuncName(call).equals("COUNT_DISTINCT") =>
+ val dataType = call.getFunc.getReturnDataType
+ val funcName = OLAPAggregateRel.getAggrFuncName(call)
+ val argNames = call.getArgList.asScala.map(dataFrame.schema.names.apply(_))
+ val columnName = argNames.map(col)
+ val aggName = SchemaProcessor.replaceToAggravateSchemaName(index, funcName, hash, argNames: _*)
+ if (dataType.getName == "hllc") {
Review comment:
What about adding a 'isHLLCountDistinct' method in FunctionDesc, sometimes I have trouble judging whether this count_distinct function is HLL or precise count distinct ==
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[GitHub] [kylin] hit-lacus merged pull request #1619: KYLIN-4936 Exactly aggregation can't transform to project
Posted by GitBox <gi...@apache.org>.
hit-lacus merged pull request #1619:
URL: https://github.com/apache/kylin/pull/1619
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[GitHub] [kylin] zhengshengjun commented on a change in pull request #1619: KYLIN-4936 Exactly aggregation can't transform to project
Posted by GitBox <gi...@apache.org>.
zhengshengjun commented on a change in pull request #1619:
URL: https://github.com/apache/kylin/pull/1619#discussion_r602889056
##########
File path: kylin-spark-project/kylin-spark-query/src/main/scala/org/apache/kylin/query/runtime/plans/AggregatePlan.scala
##########
@@ -115,7 +137,7 @@ object AggregatePlan extends LogEx {
val aggName = SchemaProcessor.replaceToAggravateSchemaName(index, funcName, hash, argNames: _*)
if (funcName == FunctionDesc.FUNC_COUNT_DISTINCT) {
Review comment:
should we replace "funcName == FunctionDesc.FUNC_COUNT_DISTINCT" with call.getFunc.isCountDistinct ?
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[GitHub] [kylin] zzcclp commented on a change in pull request #1619: KYLIN-4936 Exactly aggregation can't transform to project
Posted by GitBox <gi...@apache.org>.
zzcclp commented on a change in pull request #1619:
URL: https://github.com/apache/kylin/pull/1619#discussion_r603270334
##########
File path: kylin-spark-project/kylin-spark-query/src/main/scala/org/apache/kylin/query/runtime/plans/AggregatePlan.scala
##########
@@ -115,7 +137,7 @@ object AggregatePlan extends LogEx {
val aggName = SchemaProcessor.replaceToAggravateSchemaName(index, funcName, hash, argNames: _*)
if (funcName == FunctionDesc.FUNC_COUNT_DISTINCT) {
Review comment:
Good suggestion. Done
##########
File path: kylin-spark-project/kylin-spark-query/src/main/scala/org/apache/kylin/query/runtime/plans/AggregatePlan.scala
##########
@@ -53,10 +53,32 @@ object AggregatePlan extends LogEx {
.map(groupId => col(schemaNames.apply(groupId)))
.toList
- if (rel.getContext != null && rel.getContext.isExactlyAggregate) {
+ rel.getContext.isExactlyAggregate = isExactlyCuboidMatched(rel, groupList)
+ if (rel.getContext.isExactlyAggregate) {
// exactly match, skip agg, direct project.
- val aggCols = rel.getRewriteAggCalls.asScala
- .map(call => col(schemaNames.apply(call.getArgList.get(0)))).toList
+ val hash = System.identityHashCode(rel).toString
+ val aggCols = rel.getRewriteAggCalls.asScala.zipWithIndex.map {
+ case (call: KylinAggregateCall, index: Int)
+ if OLAPAggregateRel.getAggrFuncName(call).equals("COUNT_DISTINCT") =>
+ val dataType = call.getFunc.getReturnDataType
+ val funcName = OLAPAggregateRel.getAggrFuncName(call)
+ val argNames = call.getArgList.asScala.map(dataFrame.schema.names.apply(_))
+ val columnName = argNames.map(col)
+ val aggName = SchemaProcessor.replaceToAggravateSchemaName(index, funcName, hash, argNames: _*)
+ if (dataType.getName == "hllc") {
Review comment:
Done
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[GitHub] [kylin] zhengshengjun commented on pull request #1619: KYLIN-4936 Exactly aggregation can't transform to project
Posted by GitBox <gi...@apache.org>.
zhengshengjun commented on pull request #1619:
URL: https://github.com/apache/kylin/pull/1619#issuecomment-808908852
Thanks for solving this problem we've met. I have tested and it perfectly addressed our problem.
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