Log Message:-----------Fixed off-by-one error in make_dbi_link_role(TEXT) per Michael Fuhr.
Put a cache_connection(INT) call in begin_work(INT) per Michael Fuhr.
Modified Files:-------------- dbi-link: dbi_link.sql (r1.11 -> r1.12) (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/dbi-link/dbi-link/dbi_link.sql.diff?r1=1.11&r2=1.12)
