/usr/share/postgresql/9.6/extension/citus--5.1-8--5.2-1.sql is in postgresql-9.6-citus 6.0.1.PGDG-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 | /* citus--5.1-8--5.2-1.sql */
/* empty, but required to update the extension version */
|