/usr/share/postgresql/9.6/extension/postgis_topology.control is in postgresql-9.6-postgis-2.3-scripts 2.3.1+dfsg-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 | # postgis topology extension
comment = 'PostGIS topology spatial types and functions'
default_version = '2.3.1'
relocatable = false
schema = topology
requires = postgis
|