lgbo-ustc commented on code in PR #10047:
URL:
https://github.com/apache/incubator-gluten/pull/10047#discussion_r2163810577
##########
gluten-flink/planner/src/main/java/org/apache/gluten/rexnode/functions/BasicCompareOperatorConverters.java:
##########
@@ -59,18 +69,24 @@ public StringNumberCompareRexCallConverter(String
functionName) {
}
@Override
- public boolean isSupported(RexCall callNode, RexConversionContext context) {
+ public ValidationResult doValidate(RexCall callNode, RexConversionContext
context) {
// This converter supports string and numeric comparison functions.
List<Type> paramTypes =
callNode.getOperands().stream()
.map(param -> RexNodeConverter.toType(param.getType()))
.collect(Collectors.toList());
- if ((TypeUtils.isNumericType(paramTypes.get(0)) &&
TypeUtils.isStringType(paramTypes.get(1)))
- || (TypeUtils.isStringType(paramTypes.get(0))
- && TypeUtils.isNumericType(paramTypes.get(1)))) {
- return true;
+ boolean typesValidate =
+ (TypeUtils.isNumericType(paramTypes.get(0)) &&
TypeUtils.isStringType(paramTypes.get(1)))
+ || (TypeUtils.isStringType(paramTypes.get(0))
+ && TypeUtils.isNumericType(paramTypes.get(1)));
+ if (!typesValidate) {
+ String message =
+ String.format(
+ "String and numeric comparison operation requires one string and
one numeric operand, but found: %s",
+ getFunctionProtoTypeName(callNode));
+ return ValidationResult.failure(message);
Review Comment:
I agree that the validation provided by Velox is sufficient. However, the
implementation here may serve a different purpose.
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