On 2023-03-08 13:44:32 -0500, Melanie Plageman wrote: > However, I am concerned that, while unlikely, this could be flakey. > Something could happen to force all of those blocks out of shared > buffers (even though they were just read in) before we hit them.
You could make the test query a simple nested loop self-join, that'll prevent the page being evicted, because it'll still be pinned on the outer side, while generating hits on the inner side. Greetings, Andres Freund
