HappenLee commented on pull request #4666:
URL: https://github.com/apache/incubator-doris/pull/4666#issuecomment-699739056
> I think a more simple way to fix this issue is:
>
> ```
> @Override
> protected Expr uncheckedCastTo(Type targetType) throws
AnalysisException {
> - if (targetType.isFloatingPointType()) {
> + if (targetType.isDecimal() || targetType.isDecimalV2()) {
> + return this;
> + } else if (targetType.isFloatingPointType()) {
>
> @@ -769,7 +749,9 @@ public class FunctionSet {
> final Type[] candicateArgTypes = candicate.getArgs();
> if (functionName.equalsIgnoreCase("hex")
> || functionName.equalsIgnoreCase("greast")
> - || functionName.equalsIgnoreCase("least")) {
> + || functionName.equalsIgnoreCase("least")
> + || functionName.equalsIgnoreCase("lead")
> + || functionName.equalsIgnoreCase("lag")) {
> ```
>
> My fixed way has been passed a lot of tests.
Thanks，I will check again the repair way again.
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