[FLINK-31424] NullPointer when using StatementSet for multiple sinks

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Resolved
• Affects Version/s: 1.16.1
• Fix Version/s: 1.18.0, 1.17.1
• Component/s: Table SQL / Planner
• Labels: pull-request-available

Language

Java

• Assignee: Jane Chan
• Reporter: jirawech.s
• Created: 13/Mar/23 14:56
• Updated: 23/Mar/23 04:05
• Resolved: 23/Mar/23 04:05

Description

I got following error when i tried to execute multiple sinks using StatementSet. I am not sure what it is and where to find possible solution.

Error

// code placeholder
Exception in thread "main" java.lang.NullPointerException
    at org.apache.flink.table.planner.plan.metadata.FlinkRelMdWindowProperties.getJoinWindowProperties(FlinkRelMdWindowProperties.scala:373)
    at org.apache.flink.table.planner.plan.metadata.FlinkRelMdWindowProperties.getWindowProperties(FlinkRelMdWindowProperties.scala:349)
    at GeneratedMetadataHandler_WindowProperties.getWindowProperties_$(Unknown Source)
    at GeneratedMetadataHandler_WindowProperties.getWindowProperties(Unknown Source)
    at org.apache.flink.table.planner.plan.metadata.FlinkRelMetadataQuery.getRelWindowProperties(FlinkRelMetadataQuery.java:261)
    at org.apache.flink.table.planner.plan.optimize.StreamCommonSubGraphBasedOptimizer.createIntermediateRelTable(StreamCommonSubGraphBasedOptimizer.scala:287)
    at org.apache.flink.table.planner.plan.optimize.StreamCommonSubGraphBasedOptimizer.optimizeBlock(StreamCommonSubGraphBasedOptimizer.scala:138)
    at org.apache.flink.table.planner.plan.optimize.StreamCommonSubGraphBasedOptimizer.$anonfun$optimizeBlock$1(StreamCommonSubGraphBasedOptimizer.scala:111)
    at org.apache.flink.table.planner.plan.optimize.StreamCommonSubGraphBasedOptimizer.$anonfun$optimizeBlock$1$adapted(StreamCommonSubGraphBasedOptimizer.scala:109)
    at scala.collection.mutable.ResizableArray.foreach(ResizableArray.scala:58)
    at scala.collection.mutable.ResizableArray.foreach$(ResizableArray.scala:51)
    at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:47)

You can test the code, please see the attachment

Issue Links

• links to: GitHub Pull Request #22222
• links to: GitHub Pull Request #22238