pgsql: Add: > > * Support table partitioning that allows a single

Log Message:
-----------
Add:

* Support table partitioning that allows a single table to be stored
in subtables that are partitioned based on the primary key or a WHERE
clause

Modified Files:
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pgsql/doc:
TODO (r1.1467 -> r1.1468)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/TODO.diff?r1=1.1467&r2=1.1468)