Prospective agenda for VOQL session in Madrid
francois at vizir.u-strasbg.fr
Wed Sep 21 05:54:42 PDT 2005
The same question arises with table/column names differing just by
their case (lower/uppercase names) which should clearly be stated.
>ADQL V1.0 will include rules about what is a correct column identifier.
>On Wed, 21 Sep 2005, Patricio F. Ortiz wrote:
>> Hola Mar'ia,
>> As you may pass this email around, I'll write in english.
>> I have a concern respect to the case in which column names contain "funny"
>> characters ( (), , ' and ", -, . etc ). I've seen a number of them
>> deployed in our registry and they're obviously valid names in their home
>> databases. The problem, however, arises when one wants to parse ADQL-s to
>> ADQL-x, when interpreters start complaining about non-existing functions (
>> eg, M(B) ) or they think it's an arithmetics operation (eg, B-V, -logF
>> If this has been discussed, can you point me out to some reference? And if
>> it hasn't, can this be addressed before registries get overpopulated ?
>> Going back then will be quite painful.
>> The problem I mention seems to be exclusively a problem in how to handle
>> the queries, eg, ADQL, registries don't have any problem in accepting the
>> name of these columns.
Francois Ochsenbein ------ Observatoire Astronomique de Strasbourg
11, rue de l'Universite F-67000 STRASBOURG Phone: +33-(0)390 24 24 29
Email: francois at astro.u-strasbg.fr (France) Fax: +33-(0)390 24 24 32
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