<!--
-$Header: /cvsroot/pgsql/doc/src/sgml/ref/comment.sgml,v 1.1 1999/10/26 03:48:58 momjian Exp $
+$Header: /cvsroot/pgsql/doc/src/sgml/ref/comment.sgml,v 1.2 1999/10/26 03:53:35 momjian Exp $
Postgres documentation
-->
easily retrieved with <application>psql's</application>
<emphasize>\dd</emphasize> command.
To remove a comment, use <literal>''</literal>.
+ Comments are automatically dropped when the object is dropped.
</para>
</refsect1>
Usage
</title>
<para>
- comment the table <literal>mytable</literal>:
+ Comment the table <literal>mytable</literal>:
<programlisting>
COMMENT ON mytable IS 'This is my table.';
</programlisting>
</para>
+
+ <para>
+ Some more examples:
+
+ <programlisting>
+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.';
+ </programlisting>
+ </para>
</refsect1>
<refsect1 id="R1-SQL-COMMENT-3">