Re: [PATCHES] Current-stream read for psql's \copy

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>, Mark Feit <mfeit+postgresql(at)notonthe(dot)net>
Subject: Re: [PATCHES] Current-stream read for psql's \copy
Date: 2004-02-10 15:16:14
Message-ID: 200402101516.i1AFGE119346@candle.pha.pa.us
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Tom Lane wrote:
> Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> writes:
> > 'psql test </tmp/x' works fine, but 'psql -f /tmp/x test' hangs waiting
> > for input from stdin. Why would we want STDIN to read from the terminal
> > if all commands are being read from a file with -f?
>
> Actually, that behavior is extremely useful. Consider
> program-that-generates-data | psql -f somescript
> The script can issue a COPY FROM STDIN to insert the data coming through
> the pipe.
>
> > I propose we just fix this and document it in the release notes.
>
> I propose we not break existing applications. If we change it the way
> you suggest, there'll be no way to do the above.

But does anyone use such a capability? The program has to generate \.
to terminate the input, so why not have it issue the \copy too? Seems
cleaner.

--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 359-1001
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