Re: Latest ADQL doc and proposal for evolutioin

From: Benjamin Gufler <benjamin.gufler-at-in.tum.de>
Date: Fri, 08 Feb 2008 10:27:32 +0100


Dear VOQL-TEG,

On 2008-01-25 16:23, Pedro Osuna wrote:
> I would like you -voql-teg- to review the document and give your
> comments, and whether you are happy enough so it goes to the general
> VOQL community.

in the current BNF specification, I'm missing the possibility to have an arbitrary region stored in _one_ attribute of a table. In the old version, we had:

> *<region>* ::= <region_expression> | <region_value>
> <region_expression> ::= <circle> | <rectangle> | <polygon>
> <region_value> ::= <column_reference> | <user_defined_function>

The new version still allows to use the "constructors" which were <region_expression> in the old version, but the <region_value> is no longer there:

> *<geometry> ::= *<point>* | *<circle> | <rectangle> | <polygon>

Was that left out intentionally or just by fault?

Best regards,

        Benjamin Received on 2008-02-08Z10:27:35