some fixes and new features

scripts/postgres/03-fractions.sql

@@ -1,11 +1,12 @@
-BEGIN TRANSACTION;
 CREATE TABLE fractions(
     id serial PRIMARY KEY,
     name text,
-    owner_id int REFERENCES users(id),
+    owner_id int8 REFERENCES users(id),
     money decimal(20, 0),
     exp int DEFAULT 0,
     level int DEFAULT 0
 );
 CREATE UNIQUE INDEX fractions_uindex ON fractions(id);
+
+BEGIN TRANSACTION;
 COMMIT TRANSACTION;