COMMENT SQL - Language Statements COMMENT Add comment to an object 1999-07-20 COMMENT ON [ [ DATABASE | INDEX | RULE | SEQUENCE | TABLE | TYPE | VIEW ] object_name | COLUMN table_name.column_name| AGGREGATE agg_name agg_type| FUNCTION func_name (arg1, arg2, ...)| OPERATOR op (leftoperand_type rightoperand_type) | TRIGGER trigger_name ON table_name ] IS 'text' 1999-10-25 object_name, table_name, column_name, agg_name, func_name, op, trigger_name The name of the object to be be commented. text The comment to add. 1998-09-08 COMMENT Message returned if the table is successfully commented. 1998-10-25 COMMENT adds a comment to an object that can be easily retrieved with psql's \dd command. To remove a comment, use NULL. Comments are automatically dropped when the object is dropped. Comment the table mytable: COMMENT ON mytable IS 'This is my table.'; Some more examples: COMMENT ON DATABASE my_database IS 'Development Database'; COMMENT ON INDEX my_index IS 'Enforces uniqueness on employee id'; COMMENT ON RULE my_rule IS 'Logs UPDATES of employee records'; COMMENT ON SEQUENCE my_sequence IS 'Used to generate primary keys'; COMMENT ON TABLE my_table IS 'Employee Information'; COMMENT ON TYPE my_type IS 'Complex Number support'; COMMENT ON VIEW my_view IS 'View of departmental costs'; COMMENT ON COLUMN my_table.my_field IS 'Employee ID number'; COMMENT ON AGGREGATE my_aggregate float8 IS 'Computes sample variance'; COMMENT ON FUNCTION my_function (datetime) IS 'Returns Roman Numeral'; COMMENT ON OPERATOR ^ (text, text) IS 'Performs intersection of two text'; COMMENT ON TRIGGER my_trigger ON my_table IS 'Used for R.I.'; 1998-09-08 There is no COMMENT in SQL92.