davidradl commented on code in PR #27775:
URL: https://github.com/apache/flink/pull/27775#discussion_r2945229702
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flink-table/flink-table-api-java/src/main/java/org/apache/flink/table/expressions/resolver/rules/ResolveCallByArgumentsRule.java:
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@@ -681,6 +681,23 @@ public List<DataType> getArgumentDataTypes() {
.collect(Collectors.toList());
}
+ @Override
+ public Optional<String> getArgumentName(int pos) {
+ final ResolvedExpression arg = getArgument(pos);
+
+ if (arg instanceof CallExpression) {
+ final CallExpression call = (CallExpression) arg;
+ if (call.getFunctionDefinition() ==
BuiltInFunctionDefinitions.AS) {
Review Comment:
I notice
[here](https://stackoverflow.com/questions/1503295/t-sql-aliasing-using-versus-as)
there is a way of aliasing using `=` as well as `AS`. Does Flink support this?
If so can we add a unit test to ensure this works in the same way as `AS`.
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