Thanks for the detailed response. We'll look at upgrading to 8.3.9 from an RPM. On Mar 15, 2010, at 6:01 PM, Tom Lane wrote: > David Jantzen <djantzen@xxxxxxx> writes: >> Due to some historical idiosyncracies in our environment, we have a custom 8.3.7 database installation built from source. We'd like to install dblink into this, however there are some problems with doing so: > >> 1) the 8.3.7 database was built on a CentOS 4 build box that has since gone away >> 2) currently we have only 8.3.9 code built against CentOS 5 >> 3) the GCC compiler on CentOS 4 was quite old >> 4) possible API changes in dblink between those versions > >> My question, how risky would it be to copy the dblink.so and .sql files from the CentOS 5 compilation of Postgres 8.3.9 over to the CentOS 4 compilation of Postgres 8.3.7? If runtime errors result, how severe would they be? I.e., would they take down a postgres backend or possibly the postmaster daemon? > > I think you've got a fundamental problem that you'd better fix. If you > are unable to rebuild the database from source then you are unable to > update --- and you are already three minor versions behind and missing > multiple security and crash-risk bug fixes. You're living on borrowed > time, and NEED to reinstantiate your ability to build for that platform. > Or move to a newer one. > > FWIW, you could probably get back a RHEL4 build environment pretty > cheaply by setting up a suitable "mock" chroot on a recent Fedora > version (installed on the same type of hardware). > > As for your direct question: no, I wouldn't count on that to work. > RHEL4 and RHEL5 had different glibc versions didn't they? > > regards, tom lane -- Sent via pgsql-admin mailing list (pgsql-admin@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-admin
