This should both fix cases where the connection closes for various reasons, by having the pool reconnect; and also should be a second way of solving some of the blocking issues we were having with large queries, by letting faster queries use parallel connections.
Idk what a reasonable number is, 10 seems to be what various guides are saying? Might tune it down if it ends up pushing various connection limits? (We could also constrain it on dev specifically, if that matters.)
Matchu
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