We are using postgres for one of our application. Currently using
Postgres 8.3 with CentOS 5.3 x86_64
We are using inherited tables. Base table has 3 columns:
entry_date timestamp with time zone
pk is timestamp
data tables are derived from this base table with constraint on year
= 22 4data tables are created pre-created before start of month
No updates or delete will ever occur on data table except during purge
we will dump full table and drop it, inserting ~30 million per day
(every couple second data is loaded using copy statement).
What are the recommendation for vacuum / auto vacuum and statistics
generation ? Does vacuum on postgres catalog tables is enough to
overcome oid rollover or any other measures I have to take ?