refactor: update concat to be variadic

substrait-io · Aug 24, 2022 · 7b95418 · 7b95418
1 parent 6327ca5
commit 7b95418
Showing 1 changed file with 6 additions and 4 deletions.
diff --git a/extensions/functions_string.yaml b/extensions/functions_string.yaml
@@ -3,15 +3,17 @@
 scalar_functions:
   -
     name: concat
-    description: Concatenate two strings
+    description: Concatenate two or more strings.
     impls:
       - args:
           - value: "varchar<L1>"
-          - value: "varchar<L2>"
-        return: "varchar<L1 + L2>"
+        variadic:
+          min: 2
+        return: "varchar<L1>"
       - args:
           - value: "string"
-          - value: "string"
+        variadic:
+          min: 2
         return: "string"
   -
     name: like