SET SESSION AUTHORIZATION 'postgres'; BEGIN transaction; DO $$ DECLARE ver TEXT; BEGIN UPDATE version set version='1.0.8' where vlock=1 and version='1.0.7'; IF found THEN RETURN; END IF; SELECT version into ver from version WHERE vlock=1; RAISE EXCEPTION 'Wrong DB version - expect "1.0.7" - found "%"', ver; END $$; ALTER TABLE workinfo ALTER COLUMN coinbase2 TYPE varchar(511); END transaction;