The following bug has been logged online:
Bug reference: 2012
Logged by: Michael Enke
Email address: michael(dot)enke(at)wincor-nixdorf(dot)com
PostgreSQL version: 8.0.3
Operating system: Linux SuSE 10
Description: SPI_fnumber sigsegv when compiled with 7.4.8
Details:
A 'C' function, which uses the SPI_fnumber,
which was compiled on 7.4.8 crashes the 8.0.3 server
with a SIGSEGV.
The same source code, compiled on 8.0.3
makes no trouble.