On 15 February 2015 at 00:19, Kevin Grittner <kgrittn@ymail.com> wrote:
> What they wanted was what happened in the other database product --
> if a snapshot got sufficiently old that cleaning up the MVCC data
> was a problem *and* the snapshot was used again *and* it read a
> page which had been modified far enough back that it was not
> possible to return correct data, then they wanted to receive a
> "snapshot too old" error. I wrote a patch to do that...
So, please lets see the patch. It seems useful for core Postgres.
-- Simon Riggs http://www.2ndQuadrant.com/PostgreSQL Development, 24x7 Support, RemoteDBA, Training &
Services