Re: psql: Add command to use extended query protocol

[Corey Huinker]

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>      SELECT $1, $2 \gp 'foo' 'bar'
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I think this is a great idea, but I foresee people wanting to send that
output to a file or a pipe like \g allows. If we assume everything after
the \gp is a param, don't we paint ourselves into a corner?