DROP TABLE dict;
DROP TABLE bdict;
DROP TABLE url;
DROP TABLE urlinfo;
DROP TABLE server;
DROP TABLE links;
DROP TABLE srvinfo;
DROP TABLE categories;
DROP TABLE wrdstat;
DROP TABLE crossdict;
DROP TABLE qcache;
DROP TABLE qtrack;
DROP TABLE qinfo;
DROP SEQUENCE next_url_id;
DROP SEQUENCE server_rec_id_seq;
DROP SEQUENCE qtrack_seq;
