"Schoudel, Brian" <[EMAIL PROTECTED]> writes:
> Just for testing, I stuffed it into ExecEvalVar under the switch statement in
> execQual.c. This was a chosen spot I was fairly certain I could get some
> kind of output.
Oh. In that case you're probably going to be looking at a tupledesc
that was synthesized by ExecTypeFromTL from a targetlist constructed by
the planner --- and except at the top level of the plan, the planner
doesn't bother to assign column names to generated targetlist entries.
So I'd expect you always get empty-string names, unless you test with a
trivial one-node scan plan.
regards, tom lane
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