Il 06/09/2017 10:12, Soni M ha scritto:
>
>
> Let's say I have 10 year data, and commonly used data only the last 1
> year. This data is quite big, so each table and index file is divided
> into several file in PGDATA/base
>
May not be relevant to what you asked, but if you want to keep last yeat
data in a "small and fast" dataset separated (physically separated!) by
old data (that's still available, but response times may vary), IMHO you
should consider partitioning...
https://www.postgresql.org/docs/current/static/ddl-partitioning.html
HTH,
Moreno.-