Clarify when to use PageSetLSN/PageGetLSN().
Update README to explain prerequisites for
correct access to LSN fields of a page.
Independent chunk removed from checksums
patch to reduce size of patch.

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/1c563a2ae1c800c93fe5f41d0427e36bef874ba7

Modified Files
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src/backend/access/transam/README |    8 ++++++++
1 files changed, 8 insertions(+), 0 deletions(-)

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Next:	From: Simon Riggs	Date: 2012-12-03 12:21:24
	Subject: pgsql: Clarify locking for PageGetLSN() in XLogCheckBuffer()
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	Subject: pgsql: Refactor the code implementing standby-mode logic.