On Mon, Dec 16, 2019 at 9:28 AM Shijia Wei <shijiawei@xxxxxxxxxx> wrote: > 1st Query: > Buffers: shared hit=17074 read=16388 > 20th Query: > Buffers: shared hit=17037 read=16390 Why do the first and the twentieth executions of the query have almost identical "buffers shared/read" numbers? That seems odd. -- Peter Geoghegan
