Re: Re: Does PostgreSQL support EXISTS?

> Bruce Momjian <pgman@candle.pha.pa.us> writes:
> >> Bruce Momjian <pgman@candle.pha.pa.us> writes:
> > Are we anywhere with optimizing IN to EXISTS?  I didn't think there was
> > any work being done in that area.
>
> > Doing that would elimate the need for query sources, at least for a
> > while.
>
> Uh ... what?  I don't see a connection.

Are we talking about converting IN to EXISTS for performance reasons?  I
though having query tree sources was required for this?

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