dawidwys commented on code in PR #23173:
URL: https://github.com/apache/flink/pull/23173#discussion_r1496018763


##########
flink-table/flink-table-common/src/main/java/org/apache/flink/table/functions/BuiltInFunctionDefinitions.java:
##########
@@ -391,6 +391,16 @@ ANY, and(logical(LogicalTypeRoot.BOOLEAN), LITERAL)
                     .internal()
                     .build();
 
+    public static final BuiltInFunctionDefinition ARRAY_EXCEPT =
+            BuiltInFunctionDefinition.newBuilder()
+                    .name("ARRAY_EXCEPT")
+                    .kind(SCALAR)
+                    .inputTypeStrategy(commonArrayType(2))
+                    .outputTypeStrategy(nullableIfArgs(COMMON))

Review Comment:
   Fine with that. Please update the docs accordingly. 
   
   cc @MartijnVisser to confirm you're fine as well



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