Peter Eisentraut <[EMAIL PROTECTED]> writes:
> Is there a reason why COPY TO STDOUT does not allow columns to be specified
> more than once?
> pei=# copy test1 (a, a) to stdout;
> ERROR: 42701: column "a" specified more than once
> Or is this just an overly extensive check that is actually intended for COPY
> FROM STDIN?
I think it's reasonable even for COPY TO, since IMHO the odds that it's
a typo, rather than intentional, are probably 100:1.
As already noted, we do have a workaround if that is truly what you
intend.
regards, tom lane
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