DROP table "url";
DROP table "urlinfo";
DROP table "dict";
DROP SEQUENCE next_url_id;
DROP TABLE server;
DROP SEQUENCE next_server_id;
DROP TABLE links;
DROP TABLE categories;
DROP SEQUENCE next_cat_id;
DROP TABLE srvinfo;
DROP TRIGGER srvdel ON server;
DROP FUNCTION clean_srvinfo;
DROP TABLE "qtrack";
DROP TABLE "qinfo";

