psql \timing patch

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Another stab at the \timing patch for psql. It simply
shows how long each query takes.

Thanks to all those who have responded, on and off the list,
especially Peter Eisentraut - most of the improvements
are his.

I'm using \timing as opposed to \m, although this means
I lose the startup flag - unless someone can think of
another letter to use, since -t is aready taken and
not all clients support long options (--timing). I'm not
sure how useful it would be, but I for one would like to
be able to turn it on with a startup flag.

Greg Sabino Mullane
greg(at)turnstep(dot)com
PGP Key: 0x14964AC8 200201031816

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