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(parent: 541fc3d) | patch

author	Bruce Momjian <bruce@momjian.us>
	Sat, 8 Jan 2011 02:25:34 +0000 (21:25 -0500)
committer	Bruce Momjian <bruce@momjian.us>
	Sat, 8 Jan 2011 02:26:13 +0000 (21:26 -0500)
commit	2896c87ce4dc789722296f010eaefd5cbb86ece3
tree	5e98d2ca57edf90e7224dfe1ddf0764dc6a56bef	tree
parent	541fc3d4df66a5e51d172a78288069bd92dda0c8	commit \| diff

Force pg_upgrade's to preserve pg_class.oid, not pg_class.relfilenode.
Toast tables have identical pg_class.oid and pg_class.relfilenode, but
for clarity it is good to preserve the pg_class.oid.

Update comments regarding what is preserved, and do some
variable/function renaming for clarity.

Bernd Helmle's repository