There is none. That's one of the parameters that determines shared
memory array sizes, and we can't change those on-the-fly.
Does that mean, if I set max_connections to 1000 users, but only intend to use 10 at max (via conn limit per role settings), what would be the perf difference compared to max_connections = 100 , but still using only 10 at max.
2)
can i for test purposes.compile src with a xid max value to 2^16 etc ? like with uint16
Basically, I was trying to simulate xid wraparound, by creating an open transaction and an inactive replication slot, and then running a huge parallel loops to bump txid_current() to see what happens at 2B crossover. it takes forever on my slow laptop.
I do not see these in test scenarios, or could not find any.
as always, ignore if not relevant, or already discussed.
I am preparing for interviews, hence asking myself dumb questions :)
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Thanks,
Vijay
Mumbai, India