chore: add initial migration

Author: ncrmro

apps/database/migrations/current.sql

@@ -1 +1,28 @@
 -- Enter migration here
+
+CREATE SCHEMA IF NOT EXISTS myapp;
+CREATE SCHEMA IF NOT EXISTS myapp_private;
+
+DO
+$$
+    BEGIN
+        CREATE ROLE myapp_anonymous;
+    EXCEPTION
+        WHEN DUPLICATE_OBJECT THEN
+            RAISE NOTICE 'not creating anonymous role -- it already exists';
+    END
+$$;
+
+DO
+$$
+    BEGIN
+        CREATE ROLE myapp_viewer;
+    EXCEPTION
+        WHEN DUPLICATE_OBJECT THEN
+            RAISE NOTICE 'not creating viewer role -- it already exists';
+    END
+$$;
+
+ALTER DEFAULT PRIVILEGES REVOKE EXECUTE ON FUNCTIONS FROM PUBLIC;
+ALTER DEFAULT PRIVILEGES REVOKE EXECUTE ON FUNCTIONS FROM myapp_anonymous;
+ALTER DEFAULT PRIVILEGES REVOKE EXECUTE ON FUNCTIONS FROM myapp_viewer;