错误日志：
java.lang.Object.wait(Native Method) org.postgresql.jdbc.PgStatement.killTimerTask(PgStatement.java:981) org.postgresql.jdbc.PgStatement.executeBatch(PgStatement.java:838) org.postgresql.jdbc.PgPreparedStatement.executeBatch(PgPreparedStatement.java:1556) com.zaxxer.hikari.pool.ProxyStatement.executeBatch(ProxyStatement.java:128) com.zaxxer.hikari.pool.HikariProxyPreparedStatement.executeBatch(HikariProxyPreparedStatement.java) com.vsoc.realtime.schedule.functions.PostgreSQLSinkFunction.flush(PostgreSQLSinkFunction.java:182) com.vsoc.realtime.schedule.functions.PostgreSQLSinkFunction.invoke(PostgreSQLSinkFunction.java:114) org.apache.flink.streaming.api.operators.StreamSink.processElement(StreamSink.java:54) org.apache.flink.streaming.runtime.tasks.OneInputStreamTask$StreamTaskNetworkOutput.emitRecord(OneInputStreamTask.java:233) org.apache.flink.streaming.runtime.io.AbstractStreamTaskNetworkInput.processElement(AbstractStreamTaskNetworkInput.java:134) org.apache.flink.streaming.runtime.io.AbstractStreamTaskNetworkInput.emitNext(AbstractStreamTaskNetworkInput.java:105) org.apache.flink.streaming.runtime.io.StreamOneInputProcessor.processInput(StreamOneInputProcessor.java:65) org.apache.flink.streaming.runtime.tasks.StreamTask.processInput(StreamTask.java:496) org.apache.flink.streaming.runtime.tasks.StreamTask$$Lambda$851/1932393278.runDefaultAction(Unknown Source) org.apache.flink.streaming.runtime.tasks.mailbox.MailboxProcessor.runMailboxLoop(MailboxProcessor.java:203) org.apache.flink.streaming.runtime.tasks.StreamTask.runMailboxLoop(StreamTask.java:809) org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:761) org.apache.flink.runtime.taskmanager.Task$$Lambda$991/947462405.run(Unknown Source) org.apache.flink.runtime.taskmanager.Task.runWithSystemExitMonitoring(Task.java:958) org.apache.flink.runtime.taskmanager.Task.restoreAndInvoke(Task.java:937) org.apache.flink.runtime.taskmanager.Task.doRun(Task.java:766) org.apache.flink.runtime.taskmanager.Task.run(Task.java:575) java.lang.Thread.run(Thread.java:748)
解决方案：
<dependency> <groupId>org.postgresql</groupId> <artifactId>postgresql</artifactId> <version>42.7.0</version> </dependency>
