Data update

Task/Symmetric-difference/DuckDB/symmetric-difference.duckdb

@@ -0,0 +1,12 @@
+create or replace function arrxor(list1, list2) as
+  (select array_agg(elements) from
+    (select min(arr) as mn, max(arr) as mx, elements from
+      ( (select 1, unnest(list1))
+        union all
+        (select 2, unnest(list2)) ) as t(arr, elements)
+     group by elements
+     having mn = mx) ) ;
+
+# Example:
+
+select arrxor(['this','is','a','test'], ['also','part','of','a','test'] ) as arrxor;