On Fri, Mar 2, 2012 at 1:53 PM, Daniel Farina <dan...@heroku.com> wrote: > On Fri, Mar 2, 2012 at 10:37 AM, Peter Eisentraut <pete...@gmx.net> wrote: >> On tis, 2012-02-28 at 11:00 -0800, Daniel Farina wrote: >>> I'd really like to support libraries (C or otherwise) of multiple >>> versions at the same time, when the underlying library permits. >> >> What's preventing you from doing that now? You need to name all the >> symbols differently, of course. > > That's the problem: not really practical in a wider ecosystem of C > libraries, especially if the library produces multiple versions. (Or, > not practical unless someone writes some credible > symbol-version-mangling-magic) > > But is it unsurmountable? -- dlsym returns a function pointer, and one > would build up the operator table for the version of the extension at > hand, so one might have ltree "version 1.01" and ltree "version 2.3" > fields in the same database.
That might be possible, but it seems largely unrelated to the topic of this thread, unless I am missing something. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company -- Sent via pgsql-hackers mailing list (email@example.com) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers