Difference: IvoaVOQLHistoric (95 vs. 96)

Revision 962005-05-18 - MasatoshiOhishi

 
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IVOA Query Language

If you are interested in participating in the definition of a VO Query Language please contact Prof. Masatoshi Ohishi masatoshi.ohishi@nao.ac.jp.

We have a 3 layer model for VOQL as represented below.

ADQL-0.91

Based on the Pune (2004) agreement,In the Boston 2004 meeting, the working document toward a Proposed Recommendation was published. There have been a few minor changes since Pune. This version is to be discussed at Kyoto

The January demos ran on ADLQ0.7.4. But we should be moving to this new version now. dev.openskyquery.net is runnind ADQL0.9

The document was created based on the Boston 2004 agreement, however, several new features, such as CREATE,INSERT,UPDATE,DELETE, have not yet been included because these will actually create a huge increase in the size of the grammar. The process of generating the ADQL schema are described in ADQL Schema generation steps.

An example XSL style sheet for converting ADQL/x to ADQL/s (strings) has been provided by NCSA adql2sql-ns.xsl.

The currect translation services are for 0.7.4 and are at http://openskyquery.net/adqltranslator

A java client for the translation service has been prepared.

SkyNode

SkyNodes and the SkyNode portal would form layer 2 and 1 of this system. At the Strasbourg meeting the skynode spec was split in two. Since release of the Standard Interfaces this has also been reomved from skynode. Finally the portal section has also been reomved leaving a leaner Skynode document.

Latest SkyNode WSDL from IVOA SkyNode0_9.wsdl

There are currently Java and .NET implementations of this. Nodes are registered in the Registry and may be intereacted with through the OpenSkyQuery Portal. You may get the .NET version off the help pages of openskyquery. The Basic Java version is included in the SumerSchool software from the nvo.

A More Complete Java implelemtation is underconstruction by Tom McGlynn and is in the NVO CVS under contrib/tam/skynode Other groups (JVO, ESA, IndiaVO) are also looking at the java implementation.

SkyNode Registry Schema Extention

The SkyNode also requires a registry entry you may register in the NVO registry. The schema for the SkyNode registry entry is here - OpenSkyNode-v0.1.xsd

Comments should be posted on the VOQL mailing list as specified below.

Changed:
<
<

VOQL Sessions in Pune 2004 October

>
>

VOQL Sessions in Kyoto 2005 May

 

WG Roadmap

Changed:
<
<
  • May 2004 version 0.7.4
>
>		 * May 16-20 2005 Interop Kyoto
Deleted:
<
<
  • May 24-28, 2004 Interop meeting
  • Work to include Units, XMATCH – Ad Hoc Group (Wil O'Mullane, Clive Page, Martin Hill, Yuji Shirasaki, Sébastien Derrière and the chair). See the details above. Need to describe semantics of ADQL more clearly
  • Submit ADQL-0.8 in July
  • Sep 2004 Interop meeting Agreement --> ADQL 0.9 & interaction between us and Registry/DAL/DM groups. After interaction with Registry/DAL/DM groups and discussion within our group, we prepare a draft for ADQL 1.0. When it has been approved by the IVOA executive committee, it will become ADQL 1.0.
  • Sep 2004 GGF12 @ Brussels : to report activities of the VO community
  • Work toward January Demos
  • Jan 2005 Demos by ADQL-1.0 & SkyNode-1.0
  • Improvements including New data types proposed by Yuji SHirasaki
  • May 2005 Interop meeting / GGF joint WS in Japan
Discussion on ADQL-1.x, SkyNode-1.x ?
 
Added:
>
>		 * -- work toward Recommendations ADQL/SkyNode 1.0

* June Prepare PR documents

* Jul (-- Aug ?) RFC

* Aug Vote by the Exec → Rec ADQL & SkyNode

* -- Below is work for future version --

* Sept 2005 First WD ADQL1.x
Integration of current ADQL and DAL (with DAL)
X-Matcher (with DM/DAL)
Inclusion of simulated data access ? (with theory IG)

* Oct 2005 ADASS + IVOA InterOp Madrid, Spain
Discussion on the draft, and revise the WD

* Jan 2006 NVO demos

* Spring 2006 reference implementation ?

* May 2006 InterOp WS

* Aug 2006 IAU Prague : VO Special Session

* Autumn 2006 InterOp WS
To PR ????

 

Mailing-list

  • General working-group discussion archive.

Related Links

References 


<--  
-->

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