On Wed, May 18, 2016 at 12:55 AM, Peter Geoghegan <pg@heroku.com> wrote: > > temp_file_limit "specifies the maximum amount of disk space that a > session can use for temporary files, such as sort and hash temporary > files", according to the documentation. That's not true when parallel > query is in use, since the global variable temporary_files_size > receives no special treatment for parallel query.
>
What kind of special treatment are you expecting for temporary_files_size, also why do you think it is required? Currently neither we build hash in parallel nor there is any form of parallel sort work.