CREATE TABLE hosts_groups_tmp ( hostgroupid bigint DEFAULT '0' NOT NULL, hostid bigint DEFAULT '0' NOT NULL, groupid bigint DEFAULT '0' NOT NULL, PRIMARY KEY (hostgroupid) ) with OIDS; CREATE INDEX hosts_groups_tmp_1 on hosts_groups_tmp (hostid,groupid); insert into hosts_groups_tmp select NULL,hostid,groupid from hosts_groups; drop table hosts_groups; alter table hosts_groups_tmp rename to hosts_groups; CREATE TABLE hosts_groups_tmp ( hostgroupid bigint DEFAULT '0' NOT NULL, hostid bigint DEFAULT '0' NOT NULL, groupid bigint DEFAULT '0' NOT NULL, PRIMARY KEY (hostgroupid) ) with OIDS; CREATE INDEX hosts_groups_1 on hosts_groups_tmp (hostid,groupid); insert into hosts_groups_tmp select * from hosts_groups; drop table hosts_groups; alter table hosts_groups_tmp rename to hosts_groups;