20 lines
865 B
MySQL
20 lines
865 B
MySQL
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CREATE TABLE icinga_timeperiod_inheritance (
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timeperiod_id integer NOT NULL,
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parent_timeperiod_id integer NOT NULL,
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weight integer DEFAULT NULL,
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PRIMARY KEY (timeperiod_id, parent_timeperiod_id),
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CONSTRAINT icinga_timeperiod_inheritance_timeperiod
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FOREIGN KEY (timeperiod_id)
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REFERENCES icinga_timeperiod (id)
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ON DELETE CASCADE
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ON UPDATE CASCADE,
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CONSTRAINT icinga_timeperiod_inheritance_parent_timeperiod
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FOREIGN KEY (parent_timeperiod_id)
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REFERENCES icinga_timeperiod (id)
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ON DELETE RESTRICT
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ON UPDATE CASCADE
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);
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CREATE UNIQUE INDEX timeperiod_inheritance_unique_order ON icinga_timeperiod_inheritance (timeperiod_id, weight);
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CREATE INDEX timeperiod_inheritance_timeperiod ON icinga_timeperiod_inheritance (timeperiod_id);
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CREATE INDEX timeperiod_inheritance_timeperiod_parent ON icinga_timeperiod_inheritance (parent_timeperiod_id);
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