On Mon, 2024-02-26 at 14:47 +0100, blockdump wrote: > I am new to Postgres and started reading about the The Cumulative Statistics System. > https://www.postgresql.org/docs/current/monitoring-stats.html#MONITORING-PG-STATIO-ALL-TABLES-VIEW > > When I came across pg_statio_all_tables I was wondering what is the reference date for the > counters like (heap_blks_read, heap_blks_hit ... ) This table does not have a stats_reset column like others. > So are this numbers accumulating from the creation of the table or since the startup of the cluster ? > > Maybe someone can drop me a line.
Statistics survive a restart, but not a crash, so the statistics are collected since the table was created, the latest crash happened or the statistics were reset; whatever happened last.
Unfurtunately there is no way to find out the time when that happened.
