/usr/ is in libghc-postgresql-libpq-prof 0.8.2.1-2.
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/usr/lib/
/usr/lib/haskell-packages/
/usr/lib/haskell-packages/ghc/
/usr/lib/haskell-packages/ghc/lib/
/usr/lib/haskell-packages/ghc/lib/postgresql-libpq-0.8.2.1/
/usr/lib/haskell-packages/ghc/lib/postgresql-libpq-0.8.2.1/ghc-7.6.3/
/usr/lib/haskell-packages/ghc/lib/postgresql-libpq-0.8.2.1/ghc-7.6.3/Database/
/usr/lib/haskell-packages/ghc/lib/postgresql-libpq-0.8.2.1/ghc-7.6.3/Database/PostgreSQL/
/usr/lib/haskell-packages/ghc/lib/postgresql-libpq-0.8.2.1/ghc-7.6.3/Database/PostgreSQL/LibPQ.p_hi
/usr/lib/haskell-packages/ghc/lib/postgresql-libpq-0.8.2.1/ghc-7.6.3/libHSpostgresql-libpq-0.8.2.1_p.a
/usr/share/
/usr/share/doc/
/usr/share/doc/libghc-postgresql-libpq-prof/
/usr/share/doc/libghc-postgresql-libpq-prof/copyright
/usr/share/doc/libghc-postgresql-libpq-prof/changelog.Debian.gz