flink-connector-mysql-cdc mysql 主键是 二进制 格式

[chenxu2656]

使用flink-connector-mysql-cdc 2.1.1 监听mysql，其中mysql的主键 是 二进制 格式，出现如下错误

[pool-79-thread-1] INFO io.debezium.jdbc.JdbcConnection - Connection gracefully closed
[SourceCoordinator-Source: MySQL Source -> Sink: Print to Std. Out] ERROR org.apache.flink.runtime.source.coordinator.SourceCoordinator - Uncaught exception in the SplitEnumerator for Source Source: MySQL Source -> Sink: Print to Std. Out while handling operator event RequestSplitEvent (host='') from subtask 0. Triggering job failover.
org.apache.flink.util.FlinkRuntimeException: **Generate Splits for table 。。。 error**
	at com.ververica.cdc.connectors.mysql.source.assigners.ChunkSplitter.generateSplits(ChunkSplitter.java:115)
	at com.ververica.cdc.connectors.mysql.source.assigners.MySqlSnapshotSplitAssigner.getNext(MySqlSnapshotSplitAssigner.java:168)
	at com.ververica.cdc.connectors.mysql.source.assigners.MySqlHybridSplitAssigner.getNext(MySqlHybridSplitAssigner.java:113)
	at com.ververica.cdc.connectors.mysql.source.enumerator.MySqlSourceEnumerator.assignSplits(MySqlSourceEnumerator.java:167)
	at com.ververica.cdc.connectors.mysql.source.enumerator.MySqlSourceEnumerator.handleSplitRequest(MySqlSourceEnumerator.java:98)
	at org.apache.flink.runtime.source.coordinator.SourceCoordinator.lambda$handleEventFromOperator$1(SourceCoordinator.java:172)
	at org.apache.flink.runtime.source.coordinator.SourceCoordinator.lambda$runInEventLoop$8(SourceCoordinator.java:331)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:750)
Caused by: java.lang.ClassCastException: **[B cannot be cast to java.lang.Comparable**
	at com.ververica.cdc.connectors.mysql.source.utils.ObjectUtils.compare(ObjectUtils.java:86)
	at com.ververica.cdc.connectors.mysql.source.assigners.ChunkSplitter.nextChunkEnd(ChunkSplitter.java:239)
	at com.ververica.cdc.connectors.mysql.source.assigners.ChunkSplitter.splitUnevenlySizedChunks(ChunkSplitter.java:208)
	at com.ververica.cdc.connectors.mysql.source.assigners.ChunkSplitter.splitTableIntoChunks(ChunkSplitter.java:162)
	at com.ververica.c

请问如何解决，

[chenxu2656]

already fix #2746