Jeff Davis wrote:
> I have noticed that all SELECT queries alone in a transaction also
> update pg_stat_database (I know it's just a view that calls
> pg_stat_get_db_xact_commit()).
The stuff in the stats collector is not stored on disk. Or, rather, it
is, but not in the same way as regular table
I have noticed that all SELECT queries alone in a transaction also
update pg_stat_database (I know it's just a view that calls
pg_stat_get_db_xact_commit()).
Does that mean that SELECTs by themselves require a disk write? If so,
is that a synchronous disk write? Is it due to something else entirel