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)
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TIP 9: In versions below 8.0, the planner will ignore your desire to
choose an index scan if your joining column's datatypes do not
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