On Monday, May 22, 2017, Clemens Eisserer <linuxhi...@gmail.com> wrote:
> Hi, > > I have a letancy-sensitive legacy application, where the time consumed > by query planning was always causing some headaches. > Currently it is running on postgresql-8.4 - will postgresql-10 support > generating plans using multiple CPU cores to reduce the time required > to generate a single plan? > > My understanding, from both list monitoring and the release notes, is that query parallelization happens only during execution, not planning. A single process is still responsible for evaluating all (possibly partial) plans and picking the best one - flagging those plan steps that can leverage parallelism for possible execution. David J.
