/usr/lib/libPostgreSQLEOAdaptor.so.0.12.0 is in gnustep-dl2-postgresql-adaptor 0.12.0-15.1build2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/GNUstep/Frameworks/PostgreSQLEOAdaptor.framework/Versions/0/libPostgreSQLEOAdaptor.so.0.12.0