Data update

Task/Associative-array-Merging/DuckDB/associative-array-merging-3.duckdb

@@ -0,0 +1,11 @@
+create or replace function struct_merge_patch(base, update) as (
+<syntaxhighlight lang="sql">
+  with cte as (
+    from (select unnest(update))
+          positional join
+          (select COLUMNS(x -> x not in json_keys(update::JSON)) from (select unnest(base)))
+   )
+   select cte from cte
+);
+
+select struct_merge_patch( getvariable('base'), getvariable('update')) as merged;