Log Message:-----------Add documentation example of using interval multiplication with 'days'.
Backpatch to 8.1.X.
Tags:----REL8_1_STABLE
Modified Files:-------------- pgsql/doc/src/sgml: func.sgml (r1.291.2.4 -> r1.291.2.5) (http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/func.sgml.diff?r1=1.291.2.4&r2=1.291.2.5)
