Migrate PostgreSQL to v13.0
The upcoming PostgreSQL v13 adds several improvements, most notable for
the PassiveDNS workflow are the VACUUM
speedups due to parallel
processing of indices, which could decrease the horal cleanup time
significantly. The postgres v13 is still in development with beta3 out
on 13th of August 2020, with at least a beta4 planned before release, so
this is a future task.
Author: Radko Krkoš krkos@cesnet.cz