Jesus Camacho Rodriguez created CALCITE-1397:
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Summary: ClassCastException in FilterReduceExpressionsRule
Key: CALCITE-1397
URL: https://issues.apache.org/jira/browse/CALCITE-1397
Project: Calcite
Issue Type: Bug
Components: core
Affects Versions: 1.9.0
Reporter: Jesus Camacho Rodriguez
Assignee: Jesus Camacho Rodriguez
L184 in ReduceExpressionsRule.
{code}
...
if (newConditionExp instanceof RexCall) {
RexCall rexCall = (RexCall) newConditionExp;
boolean reverse = rexCall.getKind() == SqlKind.NOT;
if (reverse) {
rexCall = (RexCall) rexCall.getOperands().get(0);
}
reduceNotNullableFilter(call, filter, rexCall, reverse);
}
...
{code}
When we take the _NOT_ input, we do not consider that it might not be a
RexCall, which may lead to the ClassCastException.
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