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);

Task/Set/Pluto/set.pluto

@@ -0,0 +1,46 @@
+require "map"
+local fmt = require "fmt"
+
+local fruits = new set()
+fruits:add("apple", "pear", "orange", "banana")
+fmt.print("fruits  : %s", fruits)
+local fruits2 = new set()
+fruits2:add("melon", "orange", "lemon", "gooseberry")
+fmt.print("fruits2 : %s", fruits2)
+print()
+fmt.print("fruits  contains 'banana'     : %s", fruits:contains("banana"))
+fmt.print("fruits2 contains 'elderberry' : %s", fruits2:contains("elderberry"))
+print()
+
+fmt.print("Union        : %s", fruits:union(fruits2))
+fmt.print("Intersection : %s", fruits:intersect(fruits2))
+fmt.print("Difference   : %s", fruits:except(fruits2))
+print()
+
+fmt.print("fruits2 is a subset of fruits : %s", fruits2:subset(fruits))
+print()
+
+local fruits3 = fruits:copy()
+fmt.print("fruits3 : %s", fruits3)
+print()
+
+fmt.print("fruits2 and fruits are equal : %s", fruits2:same(fruits))
+fmt.print("fruits3 and fruits are equal : %s", fruits3:same(fruits))
+print()
+
+local fruits4 = new set()
+fruits4:add("apple", "orange")
+fmt.print("fruits4 : %s", fruits4)
+print()
+fmt.print("fruits3 is a proper subset of fruits : %s", fruits3:subset(fruits, true))
+fmt.print("fruits4 is a proper subset of fruits : %s", fruits4:subset(fruits, true))
+print()
+
+local fruits5 = new set()
+fruits5:add("cherry", "blueberry", "raspberry")
+fmt.print("fruits5 : %s", fruits5)
+print()
+fruits5:add("guava")
+fmt.print("fruits5 + 'guava'  : %s", fruits5)
+fruits5:remove("cherry")
+fmt.print("fruits5 - 'cherry' : %s", fruits5)