18 lines
399 B
PL/PgSQL
18 lines
399 B
PL/PgSQL
ALTER TABLE node ADD COLUMN updated TIMESTAMP NOT NULL DEFAULT NOW();
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CREATE OR REPLACE FUNCTION node_update_timestamp()
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RETURNS TRIGGER
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LANGUAGE PLPGSQL
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AS $$
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BEGIN
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IF NEW.updated = OLD.updated THEN
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UPDATE node SET updated = NOW() WHERE id=NEW.id;
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END IF;
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RETURN NEW;
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END;
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$$;
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CREATE OR REPLACE TRIGGER node_update AFTER UPDATE ON node
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FOR EACH ROW
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EXECUTE PROCEDURE node_update_timestamp()
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