Hi, On 2019-11-04 19:56:57 +0000, Scott Rankin wrote: > The index is exceedingly simple: > > > CREATE UNIQUE INDEX "programPK" ON program(id int8_ops); > > From pg_stat_user_indexes: > > Staging: > > idx_scan: 5826745 > idx_tup_read: 52715470 > idx_tup_fetch: 52644465 > > Production: > > idx_scan : 7277919087 > idx_tup_read: 90612605047 > idx_tup_fetch: 5207807880 I was basically asking for SELECT * FROM pgstatindex('pgstatindex'); with pgstatindex being from the pgstattuple extension https://www.postgresql.org/docs/current/pgstattuple.html not the pg_stat_user_indexes entry... Greetings, Andres Freund