On Sat, Aug 12, 2017 at 11:30 PM, Andres Freund <and...@anarazel.de> wrote:
> That seems to involve a lot more than this though, given that currently
> the stats collector data doesn't entirely have to be in memory. I've
> seen sites with a lot of databases with quite some per-database stats
> data. Don't think we can just require that to be in memory :(

Hmm.  I'm not sure it wouldn't end up being *less* memory.  Don't we
end up caching 1 copy of it per backend, at least for the database to
which that backend is connected?  Accessing a shared copy would avoid
that sort of thing.

Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

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