Christian Breimann <chr(at)math(dot)uni-muenster(dot)de> writes:
> When executing a SQL-Query with a "where not exists (...)" Statement,
> the result is wrong. It's the same result as I execute "where exists
> (...)" This mustn't be true.
This is a completely unhelpful bug report. We need sufficient details
to let us reproduce the problem.
regards, tom lane