On 9/2/16 4:07 PM, Bruce Momjian wrote:
Couldn't SQL sessions call a PL/Perl function that could query the OS
and set max_parallel_workers_per_gather appropriately?

I'd certainly like to see a greater ability to utilize "hooks" without resorting to C. "hooks" in quotes because while some hooks need to be in C to be of practical use, others (such as a parallelization limit or controlling autovacuum) might not.
Jim Nasby, Data Architect, Blue Treble Consulting, Austin TX
Experts in Analytics, Data Architecture and PostgreSQL
Data in Trouble? Get it in Treble! http://BlueTreble.com
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