Re: ColumnName and ColumnNumber in libpq (C interface)

From: Christoph Haller <ch(at)rodos(dot)fzk(dot)de>
To: pgsql-interfaces(at)postgresql(dot)org
Subject: Re: ColumnName and ColumnNumber in libpq (C interface)
Date: 2003-09-16 07:51:59
Message-ID: 3F66C11E.AE5B7B97@rodos.fzk.de
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>
> Christoph Haller <ch(at)rodos(dot)fzk(dot)de> writes:
> >> I thougth running this helloworldish C program:
> >> should print
> >> Bar
> >> 0
> >>
> >> but stdout shows
> >> Bar
> >> -1
> >>
>
> > All names are folded to lowercase, except enclosed in double quotes.
So
> > printf("%d\n",PQfnumber(res,"\"Bar\""));
> > gives you the right result.
>
> I wonder whether this behavior is appropriate for PQfnumber, though.
> It's never been documented ... and certainly should be if we decide
> we should keep it. Comments?
>
> regards, tom lane
>
I'd say it should be left as it is, and documented of course.
I can see a possible ambiguity, if someone is queer enough to
define columns like "bar", "Bar", "BAR", etc. within the same table.

Regards, Christoph

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