On Thu, Apr 22, 2021 at 12:13:17AM +0900, Fujii Masao wrote: > On 2021/04/21 23:53, Justin Pryzby wrote: > > Or: > > > > Enabling this parameter may incur a noticeable performance penalty, > > especially similar queries are executed by many concurrent > > connections > > and compete to update a small number of pg_stat_statements entries. > > I prefer this. But what about using "identical" instead of "similar" > because pg_stat_statements docs already uses "identical" in some places?
I also missed "when", again... > > Enabling this parameter may incur a noticeable performance penalty, > > especially when queries with identical structure are executed by > > many concurrent connections > > which compete to update a small number of pg_stat_statements > > entries.
