get_notifications uses the timeout parameter which was added only in version
3.2
Closes#15103
(grafted from e590b70d17cec54d95435c6a71a8aaf3dca5e9fa)
--HG--
branch : 8.0
The default database is template1 which is usually used to create new database.
Keeping a pool of connection open on it prevents the creation of new database
because exclusive access is needed on the template.
Closes#14935
(grafted from 20781078a519c45a7a1f70b0074c6abcb1a89589)
--HG--
branch : 8.0