PostgreSQL database design for a large company

[Kalai R <softlinne.kv@xxxxxxxxx>]

We are going to design database for a large company with multi branches. I am using PostgreSQL

For example,

I create a single database for all branches. After 10 years, database size is too large.
I want to know ,at that time, the performance of the database is reduced or not.

Is it possible to maintain in a single database for all years of data?

Regards

gt