Data update

Task/Set/DuckDB/set-1.duckdb

@@ -0,0 +1,5 @@
+create or replace table s (id INTEGER UNIQUE NOT NULL);
+create or replace table t (id INTEGER UNIQUE NOT NULL);
+
+insert into s from generate_series(1,10);
+insert into t from generate_series(5,15);

Task/Set/DuckDB/set-2.duckdb

@@ -0,0 +1 @@
+from s union from t;

Task/Set/DuckDB/set-3.duckdb

@@ -0,0 +1 @@
+from s INTERSECT from t;

Task/Set/DuckDB/set-4.duckdb

@@ -0,0 +1 @@
+select count() as n from (from s INTERSECT from t);

Task/Set/DuckDB/set-5.duckdb

@@ -0,0 +1 @@
+from s EXCEPT from t;

Task/Set/DuckDB/set-6.duckdb

@@ -0,0 +1,2 @@
+select count() from
+  ( (from s EXCEPT from t) UNION (from t EXCEPT from s));

Task/Set/DuckDB/set-7.duckdb

@@ -0,0 +1,2 @@
+select (EXISTS (from s where NOT EXISTS (from t where s.id=t.id))) or
+       (EXISTS (from t where NOT EXISTS (from s where s.id=t.id)) );

Task/Set/DuckDB/set-8.duckdb

@@ -0,0 +1,2 @@
+select NOT EXISTS
+  (from s where NOT EXISTS (from t where s.id = t.id));

Task/Set/DuckDB/set-9.duckdb

@@ -0,0 +1 @@
+select NOT EXISTS (from s EXCEPT from t);