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https://issues.apache.org/jira/browse/CALCITE-4046?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17135382#comment-17135382
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Chunwei Lei commented on CALCITE-4046:
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Thank you for reporting this, [~jamie12221]. Could you provide a test case?
> Check the number of input nodes(org.apache.calcite.interpreter.SetOpNode)
> -------------------------------------------------------------------------
>
> Key: CALCITE-4046
> URL: https://issues.apache.org/jira/browse/CALCITE-4046
> Project: Calcite
> Issue Type: Improvement
> Components: core
> Affects Versions: 1.23.0
> Reporter: jamie12221
> Priority: Trivial
>
>
>
>
> {code:java}
> public class SetOpNode implements Node {
> private final Source leftSource;
> private final Source rightSource;
> private final Sink sink;
> private final SetOp setOp;
> public SetOpNode(Compiler compiler, SetOp setOp) {
> leftSource = compiler.source(setOp, 0);
> rightSource = compiler.source(setOp, 1);
> sink = compiler.sink(setOp);
> this.setOp = setOp;
> }
> {code}
>
> There may be more than two input nodes. If the input is not checked, the
> result set is wrong.
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