/usr/share/ is in postgresql-9.5-pgq3 3.2.6-4.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/postgresql-9.5-pgq3/
/usr/share/doc/
/usr/share/doc/postgresql-9.5-pgq3/copyright
/usr/share/doc/postgresql-9.5-pgq3/README.pgq_ext
/usr/share/doc/postgresql-9.5-pgq3/changelog.Debian.gz
/usr/share/doc/postgresql-9.5-pgq3/README.pgq
/usr/share/doc/postgresql-9.5/
/usr/share/postgresql/
/usr/share/postgresql/9.5/
/usr/share/postgresql/9.5/contrib/
/usr/share/postgresql/9.5/contrib/newgrants_pgq_ext.sql
/usr/share/postgresql/9.5/contrib/newgrants_pgq.sql
/usr/share/postgresql/9.5/contrib/txid.sql
/usr/share/postgresql/9.5/contrib/pgq_node.upgrade.sql
/usr/share/postgresql/9.5/contrib/pgq.upgrade.sql
/usr/share/postgresql/9.5/contrib/pgq_triggers.sql
/usr/share/postgresql/9.5/contrib/pgq_lowlevel.sql
/usr/share/postgresql/9.5/contrib/oldgrants_londiste.sql
/usr/share/postgresql/9.5/contrib/londiste.sql
/usr/share/postgresql/9.5/contrib/pgq_node.sql
/usr/share/postgresql/9.5/contrib/uninstall_pgq.sql
/usr/share/postgresql/9.5/contrib/oldgrants_pgq_node.sql
/usr/share/postgresql/9.5/contrib/oldgrants_pgq_coop.sql
/usr/share/postgresql/9.5/contrib/pgq_ext.upgrade.sql
/usr/share/postgresql/9.5/contrib/pgq_coop.sql
/usr/share/postgresql/9.5/contrib/londiste.upgrade.sql
/usr/share/postgresql/9.5/contrib/pgq.sql
/usr/share/postgresql/9.5/contrib/oldgrants_pgq_ext.sql
/usr/share/postgresql/9.5/contrib/newgrants_londiste.sql
/usr/share/postgresql/9.5/contrib/pgq_coop.upgrade.sql
/usr/share/postgresql/9.5/contrib/newgrants_pgq_coop.sql
/usr/share/postgresql/9.5/contrib/oldgrants_pgq.sql
/usr/share/postgresql/9.5/contrib/newgrants_pgq_node.sql
/usr/share/postgresql/9.5/contrib/pgq_ext.sql
/usr/share/postgresql/9.5/extension/
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/usr/share/postgresql/9.5/extension/pgq_node--3.2.5.sql
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/usr/share/postgresql/9.5/extension/pgq.control
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/usr/share/postgresql/9.5/extension/pgq_node.control
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/usr/share/postgresql/9.5/extension/pgq--3.1.6--3.2.6.sql
/usr/share/postgresql/9.5/extension/pgq--3.1.2--3.2.6.sql