Drop function if already exists and conflict

src/test/resources/sql/function/Test1/function_test_duplicate.sql

@@ -0,0 +1,8 @@
+CREATE OR REPLACE FUNCTION test_function_duplicate (name text default 'plop', out result json)
+LANGUAGE plpgsql
+AS
+$$
+BEGIN
+    result = json_build_object('id', 3, 'name', name);
+END;
+$$