On Wed, Feb 15, 2006 at 03:47:54PM +0200, Igor Shevchenko wrote: > Here's a problem I'm facing: > > I have a "mimetype" table with all mimetypes my app has to deal with. I'm in a > process of adding a fulltext indexing (tsearch2) into my DB and I want to > specify a per-mimetype conversion function which would convert corresponding > data into a text suitable for indexing. PostgreSQL has a "regprocedure" > datatype (an alias to OID?) which can be added as a column to my "mimetype" > table but I can't find a way to execute a function by regprocedure from > pl/pgsql. Is there any way to do it except writing my own "C" function ? Or > maybe I'd better off adding a "text" field for function name and calling it > from pl/pgsql with EXECUTE "string" ? The easy answer is: not really. regprocedure is just a way to pretty print the name of a function. PostgreSQL doesn't have the concept of a function pointer. You'd probably be better off storing the name of the function and building a string to EXECUTE. If you're really desparate you could try making a postgres function that uses OidFunctionCalln but that just opens the door to all sorts of hacks... Have a nice day, -- Martijn van Oosterhout <kleptog@xxxxxxxxx> http://svana.org/kleptog/ > Patent. n. Genius is 5% inspiration and 95% perspiration. A patent is a > tool for doing 5% of the work and then sitting around waiting for someone > else to do the other 95% so you can sue them.
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