Sven, what you didn't mention is that you're probably using the German language setting.
There was a translation of "%d rows." into "%s Zeilen." which is obviously the highway to hell.
OK - so - why did pgAdmin crash? will the code be fixed? pgAdmin shouldn't crash just because there's something wrong in the translation.
I might guess, that you're using printf which took the integer as a string-pointer etc.
This is very unsafe and i wouldn't know any way to fix that :-( except writing some kind of "safe" printf-function.
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