Re: quoting psql varible as identifier

On Tue, Jan 5, 2010 at 8:23 AM, Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com> wrote:
> 2010/1/5 Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>:
>> Robert Haas <robertmhaas(at)gmail(dot)com> writes:
>>> On Mon, Jan 4, 2010 at 2:51 PM, Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com> wrote:
>>>> I don't have a problem to write second and safe fmtId
>>>> function (with technique used in dumputils don't need to modify
>>>> libpq), although fmtId do exactly what I need. I would to understand
>>>> to behave.
>>
>>> I think you mean that you would need to understand how it should
>>> behave - in which case I agree, but I think  Tom spelled that out
>>> pretty clearly upthread: close PQescapeStringConn and adapt it to be
>>> PQescapeIdentifier.
>>
>> The more important point here is that fmtId doesn't do "exactly what you
>> need" in any case.  fmtId is safe to use in pg_dump because pg_dump is
>> only expected to work with the same or older version of the backend.
>> It would not be safe to use it in libpq, which is expected to still work
>> with newer backends that might have more reserved words.
>
> So I finnaly moved to libpq PQescapeIdentConn function
>
> patch is attached.

No longer applies, please rebase.

Thanks,

...Robert