"Dan \"Heron\" Myers" <heron@xxxxxxxxxx> writes: > I'm creating some custom C functions to load dynamically from a dll > (this is Postgres 8.3.1 on Windows XP SP2). I have two that work fine, > but any time I try to write one that uses a text*, postgres crashes. What cases have you gotten to work correctly? My guess is that you're either messed up about V0 vs V1 calling convention (ie you forgot PG_FUNCTION_INFO_V1, or added it when you shouldn't have), or you've got some kind of problem with not detoasting toasted input values. There's not enough info here to venture more. regards, tom lane