[Admin]To estimate the size of db

["Duan Ligong" <l-duan@xxxxxxxxxxxxxxxxxx>]

Hi, all

Is there a way to estimate the size of the space which 
a postgresql database occupies? or the max size of db?

I know there are a lot of factors, such as the frequency
of updating, data size, which affects the size of db and 
it seems difficult to estimate it precisely.

Regards
Duan

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