Environment: Windows Vista, PostgreSQL 8.4 (1-click installer), Visual
Studio 2005 sp1.

I have a bare-bones DLL built as per the above, compiling the 'add_one' and
'copytext' samples found at
http://www.postgresql.org/docs/8.4/interactive/xfunc-c.html (version 1
calling convention), compiled as 'C'. I can use 'add_one' just fine from
within SQL, but if I use 'copytext', an access violation occurs as soon as
palloc() is called.

Could anyone suggest what the problem might be?

Failing that, are there any other (creative?) ways to return strings from a
C-language function without using palloc?

Thanks in advance for any leads


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