On Mon, Apr 12, 2021 at 06:12:18PM -0700, Peter Geoghegan wrote: > One of the dangers of high BYPASS_THRESHOLD_PAGES settings is that > it'll work well for some indexes but not others. To a dramatic degree, > even. > > That said, nbtree isn't the only index AM, and it is hard to be > completely sure that you've caught everything. So an off switch seems > like a good idea now.
Whatever the solution chosen, the thing I can see we agree on here is that we need to do something, at least in the shape of an on/off switch to have an escape path in case of problems. Peter, could we get something by beta1 for that? FWIW, I would use a float GUC to control that, and not a boolean switch, but I am just one voice here, and that's not a feature I worked on. -- Michael
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