Work-around PostgreSQL bugs

git-svn-id: svn://svn.code.sf.net/p/schemacrawler/code@2698 3243f2e7-4e1b-42d2-9742-d984016aa316


git-svn-id: svn://svn.code.sf.net/p/schemacrawler/code@2699 3243f2e7-4e1b-42d2-9742-d984016aa316


git-svn-id: svn://svn.code.sf.net/p/schemacrawler/code@2700 3243f2e7-4e1b-42d2-9742-d984016aa316