FAQ
Andres,

I was talking this over with Jeff on the plane, and we wanted to be
clear on your goals here: are you looking to eliminate the *write* cost
of freezing, or just the *read* cost of re-reading already frozen pages?

If just the latter, what about just adding a bit to the visibility map
to indicate that the page is frozen? That seems simpler than what
you're proposing.

--
Josh Berkus
PostgreSQL Experts Inc.
http://pgexperts.com

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