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CREATE TABLE users_groups_tmp (
id bigint unsigned NOT NULL auto_increment,
usrgrpid bigint unsigned DEFAULT '0' NOT NULL,
userid bigint unsigned DEFAULT '0' NOT NULL,
PRIMARY KEY (id)
) ENGINE=InnoDB;
CREATE INDEX users_groups_1 on users_groups_tmp (usrgrpid,userid);
insert into users_groups_tmp select NULL,usrgrpid,userid from users_groups;
drop table users_groups;
alter table users_groups_tmp rename users_groups;
CREATE TABLE users_groups_tmp (
id bigint unsigned DEFAULT '0' NOT NULL,
usrgrpid bigint unsigned DEFAULT '0' NOT NULL,
userid bigint unsigned DEFAULT '0' NOT NULL,
PRIMARY KEY (id)
) ENGINE=InnoDB;
CREATE INDEX users_groups_1 on users_groups_tmp (usrgrpid,userid);
insert into users_groups_tmp select * from users_groups;
drop table users_groups;
alter table users_groups_tmp rename users_groups;
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