zengjinbobo created FLINK-20747:
-----------------------------------
Summary: max 函数冲突报ClassCastException异常
Key: FLINK-20747
URL: https://issues.apache.org/jira/browse/FLINK-20747
Project: Flink
Issue Type: Bug
Components: Connectors / Kafka
Affects Versions: 1.12.0
Reporter: zengjinbobo
Fix For: 1.12.0
Attachments: image-2020-12-23-18-04-21-079.png
由于新版1.12.0发布，sql改造过程中，发现1.11.1中能正常执行sql，报异常
java.lang.ClassCastException: java.lang.Integer cannot be cast to
org.apache.flink.table.data.StringDatajava.lang.ClassCastException:
java.lang.Integer cannot be cast to org.apache.flink.table.data.StringData at
org$apache$flink$table$planner$functions$aggfunctions$MaxWithRetractAggFunction$MaxWithRetractAccumulator$Converter.toInternal(Unknown
Source) at
org.apache.flink.table.data.conversion.StructuredObjectConverter.toInternal(StructuredObjectConverter.java:92)
at
org.apache.flink.table.data.conversion.StructuredObjectConverter.toInternal(StructuredObjectConverter.java:47)
at
org.apache.flink.table.data.conversion.DataStructureConverter.toInternalOrNull(DataStructureConverter.java:59)
at GroupAggsHandler$875.getAccumulators(Unknown Source) at
org.apache.flink.table.runtime.operators.aggregate.GroupAggFunction.processElement(GroupAggFunction.java:175)
at
org.apache.flink.table.runtime.operators.aggregate.GroupAggFunction.processElement(GroupAggFunction.java:45)
at
org.apache.flink.streaming.api.operators.KeyedProcessOperator.processElement(KeyedProcessOperator.java:85)
at
org.apache.flink.streaming.runtime.tasks.OneInputStreamTask$StreamTaskNetworkOutput.emitRecord(OneInputStreamTask.java:193)
at
org.apache.flink.streaming.runtime.io.StreamTaskNetworkInput.processElement(StreamTaskNetworkInput.java:179)
at
org.apache.flink.streaming.runtime.io.StreamTaskNetworkInput.emitNext(StreamTaskNetworkInput.java:152)
at
org.apache.flink.streaming.runtime.io.StreamOneInputProcessor.processInput(StreamOneInputProcessor.java:67)
at
org.apache.flink.streaming.runtime.tasks.StreamTask.processInput(StreamTask.java:372)
at
org.apache.flink.streaming.runtime.tasks.mailbox.MailboxProcessor.runMailboxLoop(MailboxProcessor.java:186)
at
org.apache.flink.streaming.runtime.tasks.StreamTask.runMailboxLoop(StreamTask.java:575)
at
org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:539)
at org.apache.flink.runtime.taskmanager.Task.doRun(Task.java:722) at
org.apache.flink.runtime.taskmanager.Task.run(Task.java:547)
!image-2020-12-23-18-04-21-079.png!
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