Dear David I have read documentation that you send, but it has only sequential page cost and random page cost parameters. What I need, would be a model of custo for Differentiate Read/Write (sequential and random), because in SSDs the reads and writes have different costs. If you or someone knows a patch or other solution, that allows you to configure individual parameters to:
- Sequential reading page cost - cost of the random reading page - sequential recording page cost - Random recording page cost Best Regards Neto <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> Livre de vírus. www.avast.com <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail>. <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> 2017-12-20 15:35 GMT-02:00 David G. Johnston <david.g.johns...@gmail.com>: > On Wed, Dec 20, 2017 at 10:29 AM, neto brpr <netob...@gmail.com> wrote: > >> Any comment, hint about it or something, please inform me. >> > > The docs contain this - its seem to cover what you describe: > > https://www.postgresql.org/docs/10/static/runtime-config- > query.html#RUNTIME-CONFIG-QUERY-CONSTANTS > > David J. > >
