40 lines
875 B
Plaintext
40 lines
875 B
Plaintext
-- Login event triggers
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CREATE TABLE user_logins(id serial, who text);
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GRANT SELECT ON user_logins TO public;
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CREATE FUNCTION on_login_proc() RETURNS event_trigger AS $$
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BEGIN
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INSERT INTO user_logins (who) VALUES (SESSION_USER);
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RAISE NOTICE 'You are welcome!';
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END;
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$$ LANGUAGE plpgsql;
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CREATE EVENT TRIGGER on_login_trigger ON login EXECUTE PROCEDURE on_login_proc();
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ALTER EVENT TRIGGER on_login_trigger ENABLE ALWAYS;
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\c
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NOTICE: You are welcome!
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SELECT COUNT(*) FROM user_logins;
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count
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-------
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1
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(1 row)
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\c
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NOTICE: You are welcome!
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SELECT COUNT(*) FROM user_logins;
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count
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-------
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2
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(1 row)
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-- Check dathasloginevt in system catalog
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SELECT dathasloginevt FROM pg_database WHERE datname= :'DBNAME';
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dathasloginevt
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----------------
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t
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(1 row)
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-- Cleanup
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DROP TABLE user_logins;
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DROP EVENT TRIGGER on_login_trigger;
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DROP FUNCTION on_login_proc();
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\c
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