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CREATE TABLE icinga_servicegroup_inheritance (
servicegroup_id integer NOT NULL,
parent_servicegroup_id integer NOT NULL,
weight integer DEFAULT NULL,
PRIMARY KEY (servicegroup_id, parent_servicegroup_id),
CONSTRAINT icinga_servicegroup_inheritance_servicegroup
FOREIGN KEY (servicegroup_id)
REFERENCES icinga_servicegroup (id)
ON DELETE CASCADE
ON UPDATE CASCADE,
CONSTRAINT icinga_servicegroup_inheritance_parent_servicegroup
FOREIGN KEY (parent_servicegroup_id)
REFERENCES icinga_servicegroup (id)
ON DELETE RESTRICT
ON UPDATE CASCADE
);
CREATE UNIQUE INDEX servicegroup_inheritance_unique_order ON icinga_servicegroup_inheritance (servicegroup_id, weight);
CREATE INDEX servicegroup_inheritance_servicegroup ON icinga_servicegroup_inheritance (servicegroup_id);
CREATE INDEX servicegroup_inheritance_servicegroup_parent ON icinga_servicegroup_inheritance (parent_servicegroup_id);
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