docs/readme.txt in tarball contains the text of the POSTGRESQL license, except for a different copyright holder, and a slight variation in the wording of the first paragraph. Please update LICENSE in both 3.8.1 and 4.0 ebuilds.
28 Nov 2012; <titan@gentoo.org> pygresql-3.8.1.ebuild, pygresql-4.0.ebuild: Changed license from "as-is" to "POSTGRESQL". Fixes bug 444746.