Re: Allow COPY's 'text' format to output a header

    Simon Muller wrote:

> I changed the error type and message for consistency with other similar
> errors in that file. Whenever options are combined that are incompatible,
> it looks like the convention is for a ERRCODE_SYNTAX_ERROR to be thrown.

That makes sense, thanks for elaborating, although there are also
a fair number of ERRCODE_FEATURE_NOT_SUPPORTED in copy.c
that are raised on forbidden/nonsensical combination of features,
so the consistency argument could work both ways.

Best regards,
--
Daniel Vérité
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