Re: Rename max_parallel_degree?
| От | Peter Geoghegan |
|---|---|
| Тема | Re: Rename max_parallel_degree? |
| Дата | |
| Msg-id | CAM3SWZR6cd4v-LMmu9hoMR0pRVH9hKPSchEyH=v6BOo7OdhY5Q@mail.gmail.com обсуждение исходный текст |
| Ответ на | Re: Rename max_parallel_degree? (Josh berkus <josh@agliodbs.com>) |
| Список | pgsql-hackers |
On Tue, May 31, 2016 at 10:10 AM, Josh berkus <josh@agliodbs.com> wrote: > "max_parallel_degree is the amount of parallelism in the query, with the > understanding that the original parent process counts as 1, which means > that if you set it to 1 you get no parallelism, and if you want 4 > parallel workers you need to set it to 5." > > Which one of those is going to require more explanations on -general and > -novice? Bets? > > Let's not be complicated for the sake of being complicated. But the distinction between parallel workers and backends that can participate in parallel query does need to be user-visible. Worker processes are a commodity (i.e. the user must consider max_worker_processes). -- Peter Geoghegan
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