ERROR: CREATE DATABASE: source database "template1" is being accessed by other users

[jose <jo@xxxxxxxxxxxxxx>]

Hi all,

Please could you explain me why PostgreSQL doesn't allow to create a 
database while some user is accessing other databases?


template1-# create database vet;
ERROR:  CREATE DATABASE: source database "template1" is being accessed 
by other users


I can find nothing about it in documentation.

Thank you for any help.

Jo