Prospective agenda for VOQL session in Madrid
Maria A. Nieto-Santisteban
nieto at skysrv.pha.jhu.edu
Wed Sep 21 04:23:53 PDT 2005
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.
> On Wed, 21 Sep 2005, Maria A. Nieto-Santisteban wrote:
> > Dear all,
> > Here it is the prospective agenda for the VOQL session. The main topic will
> > be the ADQL and SkyNodes WDs.
> > We have allocated 40 to 45 minutes for those who would like to present
> > their work in the area. Please let us know if you wish to give a short
> > presentation.
> > See you soon
> > Yuji Shirasaki and Maria Nieto-Santisteban
> > ==========================================================================
> > VOQL agenda
> > IVOA interoperability meeting
> > San Lorenzo del Escorial, Madrid, Spain
> > Friday, October 10th, 9:30 - 13:00
> > Maria Nieto-Santisteban & Yuji Shirasaki
> > 1. Road Map: (Yuji & Maria: 10')
> > - Where are we?
> > - Meeting goals
> > 2. Review ADQL and SkyNode specifications WD: (All: 60')
> > - ADQL v1.0
> > * SQL 92
> > - The SELECT statement
> > - BNF independent from language (Post C# as a
> > external reference)
> > * XMATCH function(s) syntax
> > * Single & Multi node queries
> > - SkyNode v1.0
> > * XMATCH function(s) algorithms
> > * Architecture Decoupling (Cascade and Parallel)
> > * Add a mechanism to transmit "messages" in addition to
> > data
> > * Content standardization in returned VOTable
> > 3. Metadata. How enforce quality? (Maria: 10')
> > 4. Discuss schedule to upgrade skynodes from 0.7 to 1.0 (All: 10')
> > - break -
> > 5. Short presentations (No more than 40 - 45'; 10' to 15' each depending
> > on quantity )
> > 6. Future - Brief discussion (As time permits)
> > * The '!' operator problem. Need for proper footprints. (Maria:
> > 10')
> > * VOQL needs diversity: equivalent implementations of Open
> > SkyQuery portals accepting distributed queries
> > * XMATCH function(s) algorithms (How do we include errors?)
> > * How do we deal with big query results? The path to VOStore
> > * Xmatch works only between primary table from SkyNode
> > (What needs to be done to allow xmatch with others?)
> > * Table data model (standard column names) Where does the Catalog
> > Data Model WG stand?
> > * Query by ucd and utype
> > 7. Update Road Map
> Patricio F. Ortiz pfo at star.le.ac.uk
> Department of Physics & Astronomy Phone: +44 (0)116 252 2015
> University of Leicester
> Leicester, LE1 7RH, UK
Maria A. Nieto-Santisteban (nieto at pha.jhu.edu)
Johns Hopkins University
3400 N. Charles St.
Physics & Astronomy Department
Baltimore, MD 21218 (USA)
Tel: 1 410 516-7679 Fax: 1 410 516-5096
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