Demo script.

Author: solidsnack

demo.sql

@@ -0,0 +1,37 @@
+\include_relative graphql.sql
+\include_relative fb/schema.sql
+\include_relative fb/data.sql
+
+\x auto
+
+\C Consumers:
+SELECT * FROM consumer;
+
+\C Friendships:
+SELECT friendship.*, l._||' -> '||r._ AS who FROM friendship,
+         LATERAL (SELECT full_name FROM consumer WHERE first = id) AS l(_),
+         LATERAL (SELECT full_name FROM consumer WHERE second = id) AS r(_);
+
+DO $$
+DECLARE
+  graphql_q text = 'consumer("f3411edc-e1d0-452a-bc19-b42c0d5a0e36") {'
+                   '  full_name,'
+                   '  friendship'
+                   '}';
+  sql_q text;
+  result json;
+  msg text;
+BEGIN
+  RAISE INFO E'GraphQL to parse:\n%\n', graphql_q;
+  SELECT * INTO STRICT sql_q FROM graphql.to_sql(graphql_q);
+  RAISE INFO E'SQL that will be run:\n%\n', sql_q;
+  EXECUTE sql_q INTO STRICT result;
+  RAISE INFO E'Result:\n%\n', result;
+END
+$$;
+
+BEGIN;
+SET LOCAL client_min_messages TO ERROR;
+DROP SCHEMA graphql CASCADE;
+DROP SCHEMA fb CASCADE;
+END;