vlsi commented on a change in pull request #2246:
URL: https://github.com/apache/calcite/pull/2246#discussion_r528604721
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File path: core/src/main/java/org/apache/calcite/rex/RexSimplify.java
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@@ -900,13 +902,12 @@ private void validateStrongPolicy(RexNode rexNode) {
case ANY:
List<RexNode> operands = ((RexCall) rexNode).getOperands();
if (rexNode.getType().isNullable()) {
- assert operands.stream()
- .map(RexNode::getType)
- .anyMatch(RelDataType::isNullable);
+ // Ignores the nullability change when all the operands are literals
+ // which come from the simplification.
+ assert
operands.stream().map(RexNode::getType).anyMatch(RelDataType::isNullable)
+ || operands.stream().allMatch(p -> RexUtil.isLiteral(p, false));
Review comment:
`rexBuilder.makeCall(e.getType(), e.getOperator(), operands);` above
must be updated to infer the proper type instead of `e.getType()`.
PS. I have already done all of that in
https://github.com/apache/calcite/pull/2250 a week or two ago
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