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https://issues.apache.org/jira/browse/FLINK-32426?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17781704#comment-17781704
]
dalongliu commented on FLINK-32426:
-----------------------------------
Fixed in 1.17: a461e949cb3068b5609b0c8921647e0cbf5e5e9e
> Fix adaptive local hash agg can't work when auxGrouping exist
> -------------------------------------------------------------
>
> Key: FLINK-32426
> URL: https://issues.apache.org/jira/browse/FLINK-32426
> Project: Flink
> Issue Type: Bug
> Affects Versions: 1.18.0, 1.17.1
> Reporter: dalongliu
> Assignee: dalongliu
> Priority: Critical
> Labels: pull-request-available
> Fix For: 1.18.0
>
>
> For the following case, the field `a` is primary key, we select from
> `AuxGroupingTable` and group by a, b. Since a is primary key, it also
> guarantee the unique, so planner will extract b as auxGrouping field.
> {code:java}
> registerCollection(
> "AuxGroupingTable",
> data2,
> type2,
> "a, b, c, d, e",
> nullablesOfData2,
> FlinkStatistic.builder().uniqueKeys(Set(Set("a").asJava).asJava).build())
> checkResult(
> "SELECT a, b, COUNT(c) FROM AuxGroupingTable GROUP BY a, b",
> Seq(
> row(1, 1, 1),
> row(2, 3, 2),
> row(3, 4, 3),
> row(4, 10, 4),
> row(5, 11, 5)
> )
> ) {code}
>
> Due to the generated code doesn't get auxGrouping fields from input RowData
> and then setting it to aggBuffer, the aggBuffer RowData loses some fields,
> and it will throw an index Exception when get the field from it. As following:
> {code:java}
> Caused by: java.lang.AssertionError: index (1) should < 1
> at
> org.apache.flink.table.data.binary.BinaryRowData.assertIndexIsValid(BinaryRowData.java:127)
> at
> org.apache.flink.table.data.binary.BinaryRowData.isNullAt(BinaryRowData.java:156)
> at
> org.apache.flink.table.data.utils.JoinedRowData.isNullAt(JoinedRowData.java:113)
> at
> org.apache.flink.table.runtime.typeutils.RowDataSerializer.toBinaryRow(RowDataSerializer.java:201)
> at
> org.apache.flink.table.runtime.typeutils.RowDataSerializer.serialize(RowDataSerializer.java:103)
> at
> org.apache.flink.table.runtime.typeutils.RowDataSerializer.serialize(RowDataSerializer.java:48)
> at
> org.apache.flink.streaming.runtime.streamrecord.StreamElementSerializer.serialize(StreamElementSerializer.java:165)
> at
> org.apache.flink.streaming.runtime.streamrecord.StreamElementSerializer.serialize(StreamElementSerializer.java:43)
> at
> org.apache.flink.runtime.plugable.SerializationDelegate.write(SerializationDelegate.java:54)
> at
> org.apache.flink.runtime.io.network.api.writer.RecordWriter.serializeRecord(RecordWriter.java:141)
> at
> org.apache.flink.runtime.io.network.api.writer.RecordWriter.emit(RecordWriter.java:107)
> at
> org.apache.flink.runtime.io.network.api.writer.ChannelSelectorRecordWriter.emit(ChannelSelectorRecordWriter.java:55)
> at
> org.apache.flink.streaming.runtime.io.RecordWriterOutput.pushToRecordWriter(RecordWriterOutput.java:134)
> at
> org.apache.flink.streaming.runtime.io.RecordWriterOutput.collectAndCheckIfChained(RecordWriterOutput.java:114)
> at
> org.apache.flink.streaming.runtime.io.RecordWriterOutput.collect(RecordWriterOutput.java:95)
> at
> org.apache.flink.streaming.runtime.io.RecordWriterOutput.collect(RecordWriterOutput.java:48)
> at
> org.apache.flink.streaming.api.operators.CountingOutput.collect(CountingOutput.java:59)
> at
> org.apache.flink.streaming.api.operators.CountingOutput.collect(CountingOutput.java:31)
> at LocalHashAggregateWithKeys$39.processElement_split2(Unknown Source)
> at LocalHashAggregateWithKeys$39.processElement(Unknown Source)
> at
> org.apache.flink.streaming.runtime.tasks.ChainingOutput.pushToOperator(ChainingOutput.java:108)
> at
> org.apache.flink.streaming.runtime.tasks.ChainingOutput.collect(ChainingOutput.java:77)
> at
> org.apache.flink.streaming.runtime.tasks.ChainingOutput.collect(ChainingOutput.java:39)
> at BatchExecCalc$10.processElement(Unknown Source)
> at
> org.apache.flink.streaming.runtime.tasks.ChainingOutput.pushToOperator(ChainingOutput.java:108)
> at
> org.apache.flink.streaming.runtime.tasks.ChainingOutput.collect(ChainingOutput.java:77)
> at
> org.apache.flink.streaming.runtime.tasks.ChainingOutput.collect(ChainingOutput.java:39)
> at SourceConversion$6.processElement(Unknown Source)
> at
> org.apache.flink.streaming.runtime.tasks.ChainingOutput.pushToOperator(ChainingOutput.java:108)
> at
> org.apache.flink.streaming.runtime.tasks.ChainingOutput.collect(ChainingOutput.java:77)
> at
> org.apache.flink.streaming.runtime.tasks.ChainingOutput.collect(ChainingOutput.java:39)
> at
> org.apache.flink.streaming.api.operators.StreamSourceContexts$ManualWatermarkContext.processAndCollect(StreamSourceContexts.java:418)
> at
> org.apache.flink.streaming.api.operators.StreamSourceContexts$WatermarkContext.collect(StreamSourceContexts.java:513)
> at
> org.apache.flink.streaming.api.operators.StreamSourceContexts$SwitchingOnClose.collect(StreamSourceContexts.java:103)
> at
> org.apache.flink.streaming.api.functions.source.InputFormatSourceFunction.run(InputFormatSourceFunction.java:92)
> at
> org.apache.flink.streaming.api.operators.StreamSource.run(StreamSource.java:110)
> at
> org.apache.flink.streaming.api.operators.StreamSource.run(StreamSource.java:67)
> at
> org.apache.flink.streaming.runtime.tasks.SourceStreamTask$LegacySourceFunctionThread.run(SourceStreamTask.java:333)
> {code}
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