On 15 August 2011 16:56, Steve Singer <ssin...@ca.afilias.info> wrote:
> This would mean that anyone using the floating point timestamps today won't
> be able to use pg_upgrade to upgrade to whichever version we remove them
> from.  8.3 had float based timestamps as the default and I suspect many
> installations with the default 8.3 settings have been upgraded via
> pg_upgrade to 9.0 built the old timestamps representation.

Really? I find that slightly surprising, considering that a quick look
at master's timestamp.c suggests that the choice to use the in64
representation over the double representation is entirely a case of
compile time either/or. There is no apparent fall-back to the double
representation available to binaries built without

Peter Geoghegan       http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training and Services

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