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CREATE TABLE icinga_usergroup_inheritance (
usergroup_id INT(10) UNSIGNED NOT NULL,
parent_usergroup_id INT(10) UNSIGNED NOT NULL,
weight MEDIUMINT UNSIGNED DEFAULT NULL,
PRIMARY KEY (usergroup_id, parent_usergroup_id),
UNIQUE KEY unique_order (usergroup_id, weight),
CONSTRAINT icinga_usergroup_inheritance_usergroup
FOREIGN KEY usergroup (usergroup_id)
REFERENCES icinga_usergroup (id)
ON DELETE CASCADE
ON UPDATE CASCADE,
CONSTRAINT icinga_usergroup_inheritance_parent_usergroup
FOREIGN KEY usergroup (parent_usergroup_id)
REFERENCES icinga_usergroup (id)
ON DELETE RESTRICT
ON UPDATE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
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