Proposition of Erratum for ADQL-2.1

[Gregory MANTELET]

Dear DAL members,

Following some comments I have received, the Erratum wording has been
a bit changed. I have also renamed the file for the textual form into
`adql-bnf.txt` (instead of `adql.bnf`).

Changes I want to apply once the Erratum if/will be approved are visible in
the following Pull Request: #105 
<https://github.com/ivoa-std/ADQL/pull/105>.

Until now, there is no opposition to this Erratum ; only approvals.
If it is still the case, I will proposed this to the TCG.

Cheers,
Grégory


On 4/14/26 16:54, Patrick Dowler via dal wrote:
> I also support this
> --
> Patrick Dowler
> Canadian Astronomy Data Centre
> Victoria, BC, Canada
>
> On Tue, 14 Apr 2026 at 06:24, Mark Taylor via dal<dal at ivoa.net> wrote:
>> I support this!
>>
>> On Tue, 14 Apr 2026, Gregory MANTELET via dal wrote:
>>
>>> Dear DAL members,
>>>
>>> Following the proposition made (hum...2 years ago) in the GitHub Issue #78
>>> <https://github.com/ivoa-std/ADQL/issues/78>,
>>> I propose an erratum for ADQL-2.1 in order to add 2 alternative versions of
>>> the
>>> ADQL BNF grammar as auxiliary files:
>>>
>>> - textual version<https://github.com/ivoa-std/ADQL/blob/master/adql.bnf>
>>>    (which is actually the source of the grammar include in the ADQL document)
>>> - HTML version<https://github.com/ivoa-std/ADQL/blob/master/adql-bnf.html>
>>>    (with links to easily navigate inside the BNF ; quite useful for easy and
>>>    quick discovery of this grammar)
>>>
>>> Both are only available in GitHub. The idea of this erratum is to make them
>>> also available through the IVOA Document Repository. Links toward these files
>>> will then be added inside the Appendix A of the ADQL-2.1 document showing
>>> the entire BNF.
>>>
>>> I have already written the Erratum in the IVOA's twiki:
>>>
>>> https://wiki.ivoa.net/twiki/bin/view/IVOA/ADQL-2_1-Err-1
>>>
>>> I strongly encourage anyone interested into ADQL to take a look on this.
>>>
>>> If you agree or disagree with this erratum or want to comment or change
>>> anything, do not hesitate to answer to this email or to communicate through
>>> the GitHub Issue #78<https://github.com/ivoa-std/ADQL/issues/78>.
>>>
>>> If no disagreement, I plan to present this erratum at the next TCG meeting
>>> in two weeks.
>>>
>>> Cheers,
>>> Grégory M.
>>>
>> --
>> Mark Taylor  Astronomical Programmer  Physics, Bristol University, UK
>> m.b.taylor at bristol.ac.uk          https://www.star.bristol.ac.uk/mbt/
>
>
>
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