On Tue, 2020-03-17 at 09:49 +0000, Daniel Westermann (DWE) wrote: > is someone using temporary tablespaces on a RAM disk ? Any experiences with that? > I did some quick tests and checked the archives but could not find any information that either confirmed it is a bad idea nor the opposite. Taking a step back, wouldn't it be better to increase "work_mem" and "temp_buffers" and set "temp_file_limit", so that temporary files are avoided whenever possible and temporary tables are cached? Then essentially you are using the same memory for the same purposes, but in a supported fashion. Yours, Laurenz Albe