statistics collector is a subsystem which collects information about activity on the local server, such as table/index access and vacuum/analyze activity.
Information gathered by the statistics collector is made available via the various
pg_stat_* / pg_statio_* views.
Note that these kinds of statistics are specific to the local server and are not replicated. They should not be confused with the statistics on data collected by
analyze operations and stored in the
pg_statistic table, which are replicated.
The following configuration parameters are relevant for the