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https://issues.apache.org/jira/browse/IMPALA-11766?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Quanlong Huang resolved IMPALA-11766.
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Fix Version/s: Impala 4.3.0
Assignee: Steve Carlin
Resolution: Fixed
Resolving this. Thank [~scarlin] !
> In HdfsScanNode.buildBinaryStatsPredicate, an Expr needs to be cloned
> ---------------------------------------------------------------------
>
> Key: IMPALA-11766
> URL: https://issues.apache.org/jira/browse/IMPALA-11766
> Project: IMPALA
> Issue Type: Bug
> Components: Frontend
> Reporter: Steve Carlin
> Assignee: Steve Carlin
> Priority: Major
> Fix For: Impala 4.3.0
>
>
> In HdfsScanNode.buildBinaryStatsPredicate exists the following code:
> {code:java}
> private void buildBinaryStatsPredicate(Analyzer analyzer, SlotRef inputSlot,
> BinaryPredicate inputPred, BinaryPredicate.Operator op) {
> // Obtain the rhs expr of the input predicate
> Expr constExpr = inputPred.getChild(1);
> ...
> BinaryPredicate statsPred = new BinaryPredicate(op, slot,
> constExpr);{code}
> This contains a potential bug. The constExpr is mutable and the creation of
> the new BinaryPredicate can change the innards of the inputPred Expr.
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