I'm trying to implement a UDF that supports xpath evaluation on a column using the gnome libxml2 library. The library is thread-safe EXCEPT for the initialization and deinitialization routines which need to be called on a pre-process basis. My question:
1. Is there a good place (or any place??) to call per-process initialization and deinitialization routines for UDF's? - or - 2. Is there another way to do this? Thanks. Joel
