On 27 February 2016 at 15:29, Konstantin Knizhnik <k.knizh...@postgrespro.ru > wrote:
> Two reasons: > 1. There is no ideal implementation of DTM which will fit all possible > needs and be efficient for all clusters. > 2. Even if such implementation exists, still the right way of it > integration is Postgres should use kind of TM API. > <http://www.postgresql.org/mailpref/pgsql-hackers> > I've got to say that this is somewhat reminicient of the discussions around in-core pooling, where argument 1 is applied to justify excluding pooling from core/contrib. I don't have a strong position on whether a DTM should be in core or not as I haven't done enough work in the area. I do think it's interesting to strongly require that a DTM be in core while we also reject things like pooling that are needed by a large proportion of users. -- Craig Ringer http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services