rubenada commented on a change in pull request #2353:
URL: https://github.com/apache/calcite/pull/2353#discussion_r583647298
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File path: core/src/main/java/org/apache/calcite/runtime/SqlFunctions.java
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@@ -2792,27 +2792,28 @@ public static Collection multisetUnionAll(Collection
collection1,
* Function that, given a certain List containing single-item structs (i.e.
arrays / lists with
* a single item), builds an Enumerable that returns those single items
inside the structs.
*/
- public static Function1<Object, Enumerable<Comparable>> flatList() {
+ public static Function1<Object, Enumerable<Object>> flatList() {
Review comment:
Actually, I think we can do even better / simpler:
```
public static Function1<List<Object>, Enumerable<Object>> flatList() {
return inputObject -> {
final Enumerator<Object> enumerator = Linq4j.enumerator(inputObject);
...
```
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