On 18 October 2017 at 02:01, Alexander Korotkov <a.korot...@postgrespro.ru> wrote: > On Wed, Sep 6, 2017 at 4:42 PM, Alexander Korotkov > <a.korot...@postgrespro.ru> wrote: >> >> We're currently blocking writing queries on standby if even they are >> modifying contents of foreign tables. But do we have serious reasons for >> that? >> Keeping in the mind FDW-sharding, making FDW-tables writable from standby >> would be good to prevent single-master bottleneck. >> I wrote simple patch enabling writing to foreign tables from standbys. It >> works from the first glance for me. > > > No interest yet, but no objections too :-) > I'm going to add this to next commitfest.
Superficially at least, it sounds like a good idea. We should only need a virtual xid when we're working with foreign tables since we don't do any local heap changes. How's it work with savepoints? -- Craig Ringer http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services -- Sent via pgsql-hackers mailing list (firstname.lastname@example.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers