xinyiZzz commented on issue #6327:
URL:
https://github.com/apache/incubator-doris/issues/6327#issuecomment-892751618
When the child of the Union on the right side of the join is not a constant,
it is ScanNode:
```
SELECT a.x
FROM (SELECT '01' x) a
INNER JOIN
(SELECT C_CUSTKEY from CUSTOMER
UNION all
SELECT C_CUSTKEY from CUSTOMER) b;
```
The `Preconditions.checkState` in the FE will report an error
```
java.lang.IllegalStateException: null
at
com.google.common.base.Preconditions.checkState(Preconditions.java:492)
~[spark-dpp-1.0.0.jar:1.0.0]
at
org.apache.doris.planner.DataPartition.<init>(DataPartition.java:62)
~[palo-fe.jar:3.4.0]
at
org.apache.doris.planner.DistributedPlanner.createSetOperationNodeFragment(DistributedPlanner.java:815)
~[palo-fe.jar:3.4.0]
at
org.apache.doris.planner.DistributedPlanner.createPlanFragments(DistributedPlanner.java:213)
~[palo-fe.jar:3.4.0]
at
org.apache.doris.planner.DistributedPlanner.createPlanFragments(DistributedPlanner.java:196)
~[palo-fe.jar:3.4.0]
at
org.apache.doris.planner.DistributedPlanner.createPlanFragments(DistributedPlanner.java:104)
~[palo-fe.jar:3.4.0]
at
org.apache.doris.planner.Planner.createPlanFragments(Planner.java:214)
~[palo-fe.jar:3.4.0]
at org.apache.doris.planner.Planner.plan(Planner.java:84)
~[palo-fe.jar:3.4.0]
at
org.apache.doris.qe.StmtExecutor.analyzeAndGenerateQueryPlan(StmtExecutor.java:630)
~[palo-fe.jar:3.4.0]
at org.apache.doris.qe.StmtExecutor.analyze(StmtExecutor.java:514)
~[palo-fe.jar:3.4.0]
at org.apache.doris.qe.StmtExecutor.execute(StmtExecutor.java:302)
~[palo-fe.jar:3.4.0]
at org.apache.doris.qe.StmtExecutor.execute(StmtExecutor.java:275)
~[palo-fe.jar:3.4.0]
at
org.apache.doris.qe.ConnectProcessor.handleQuery(ConnectProcessor.java:206)
~[palo-fe.jar:3.4.0]
at
org.apache.doris.qe.ConnectProcessor.dispatch(ConnectProcessor.java:344)
~[palo-fe.jar:3.4.0]
at
org.apache.doris.qe.ConnectProcessor.processOnce(ConnectProcessor.java:545)
~[palo-fe.jar:3.4.0]
at
org.apache.doris.mysql.nio.ReadListener.lambda$handleEvent$0(ReadListener.java:50)
~[palo-fe.jar:3.4.0]
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
[?:1.8.0_252]
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
[?:1.8.0_252]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_252]
```
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