jayzhan211 commented on code in PR #14532:
URL: https://github.com/apache/datafusion/pull/14532#discussion_r1951783336


##########
datafusion/functions-nested/src/array_has.rs:
##########
@@ -94,7 +94,7 @@ impl Default for ArrayHas {
 impl ArrayHas {
     pub fn new() -> Self {
         Self {
-            signature: Signature::array_and_element(Volatility::Immutable),
+            signature: Signature::array_and_element(Volatility::Immutable, 
None),

Review Comment:
   How about something like this, we don't necessary need to wrap into a util 
function, it is less helpful when there are many fields
   
   ```rust
               signature: Signature {
                   type_signature: TypeSignature::ArraySignature(
                       ArrayFunctionSignature::Array {
                           arguments: vec![
                               ArrayFunctionArgument::Array,
                               ArrayFunctionArgument::Element,
                           ],
                           array_coercion: 
Some(ListCoercion::FixedSizedListToList),
                       },
                   ),
                   volatility: Volatility::Immutable,
               },
   ```



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