Heikki Linnakangas wrote:
Florian G. Pflug wrote:
There could be a GUC vacuum_freeze_limit, and the actual FreezeLimit
would be calculated as
GetOldestXmin() - vacuum_freeze_limit
We already have that. It's called vacuum_freeze_min_age, and the default
is 100 million transactions.
IIRC we added it late in the 8.2 release cycle when we changed the clog
truncation point to depend on freeze limit.
Ok, that explains why I didn't find it when I checked the source - I
checked the 8.1 sources by accident ;-)
Anyway, thanks for pointing that out ;-)
greetings, Florian Pflug
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