Re: listen/notify argument (old topic revisited)

Tom Lane wrote:
> Bruce Momjian <pgman@candle.pha.pa.us> writes:
> > Tom Lane wrote:
> >> themselves.  (I'd also be inclined to include the hash code in the
> >> transmitted message, so that readers could more quickly ignore
> >> uninteresting messages.)
> 
> > Doesn't seem worth it, and how would the user know their hash;
> 
> This is not the user's problem; it is the writing backend's
> responsibility to compute and add the hash.  Basically we trade off some
> space to compute the hash code once at the writer not N times at all the
> readers.

Oh, OK.  When you said "transmitted", I thought you meant transmitted to
the client.

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