IVOA Interoperability Meeting

1
ADQL status

• Iñaki Ortiz
• VOQL-TEG

2
ADQL Version Track

• ADQL v1.5-20080325 WD
• ADQL v2.0-20080430 PR, before Trieste
• ADQL v2.0-20080908 PR, after RFC period
• ADQL v2.0-20081028 PR, after WG Chairs review
• ADQL v2.0-20081030 REC, approved by Exec

3
ADQL v1.5-20080325 WD

• Released right before RFC period started.
• Collected VOQL-TEG inputs/agreements after first
  complete review.
• More details here
• http//www.ivoa.net/forum/voql-teg/0803/0247.htm
• Changes
• - BNF updated with all geometrical constructs.
• - Link to RFC 2119 added in the 'References'
  section.
• - Editorial typos corrected.
• - SELECT compact syntax in line with BNF.

IVOA VOQL-TEG Iñaki Ortiz
IVOA Interoperability Meeting 27-31 Oct 2008,
Baltimore
4
ADQL v2.0-20080430 PR

• Released before last Interop_at_Trieste.
• PR version for RFC period.
• Change
• - Version number changed to 2.0 as indicated by
• IVOA Document Coordinator.

IVOA VOQL-TEG Iñaki Ortiz
IVOA Interoperability Meeting 27-31 Oct 2008,
Baltimore
5
ADQL v2.0-20080908 PR (1/5)

• Released after Interop_at_Trieste.
• Implements RFC comments and agreements reached
  _at_Trieste.
• Reviewed by WG/IG Chairs and Exec after RFC
  period.
• More details here
• http//www.ivoa.net/cgi-bin/twiki/bin/view/IVOA/AD
  QLv2RFC
• http//www.ivoa.net/forum/voql-teg/0809/0306.htm

IVOA VOQL-TEG Iñaki Ortiz
IVOA Interoperability Meeting 27-31 Oct 2008,
Baltimore
6
ADQL v2.0-20080908 PR (2/5)

• RFC/Edit changes
• Typos and other editorial issues corrected.
• Sub-sectioning improved to reduce the section
  levels.
• Links to STC and STC-S added in the 'References'
  section.
• BNF update in line with rest of changes.
• http//www.ivoa.net/internal/IVOA/IvoaVOQL/adql-bn
  f-v2.0-20080908.html

IVOA VOQL-TEG Iñaki Ortiz
IVOA Interoperability Meeting 27-31 Oct 2008,
Baltimore
7
ADQL v2.0-20080908 PR (3/5)

• RFC/Units changes
• Trigonometrical functions definition improved
• As adopted from SQL, use radians.
• Legal return and input values made explicit.
• Geometry constructs use degrees.
• If Cartesian coordinates, no units. Vector must
  be normalized.

IVOA VOQL-TEG Iñaki Ortiz
IVOA Interoperability Meeting 27-31 Oct 2008,
Baltimore
8
ADQL v2.0-20080908 PR (4/5)

• RFC/Coord changes
• COORDSYS function to extract coordinate system
  from geometry.
• Legal ranges for spherical coordinates set to
  0,360 and -90,90.
• Coordinate system string literals to be STC
  compatible.

IVOA VOQL-TEG Iñaki Ortiz
IVOA Interoperability Meeting 27-31 Oct 2008,
Baltimore
9
ADQL v2.0-20080908 PR (5/5)

• RFC/Geom changes
• BOX defined as of STC replacing RECTANGLE.
  Samples of usage provided.
• Improved description and samples for
• AREA, CENTROID, CIRCLE, CONTAIN,
• INTERSECTS, POINT, POLYGON and REGION
• LATITUDE and LONGITUDE functions replaced by
  COORD1, COORD2.

IVOA VOQL-TEG Iñaki Ortiz
IVOA Interoperability Meeting 27-31 Oct 2008,
Baltimore
10
ADQL v2.0-20081028 PR (1/2)

• Released during Interop_at_Baltimore.
• Addresses first round of comments by WG/IG Chairs
  after RFC period was closed.
• More details here
• http//www.ivoa.net/cgi-bin/twiki/bin/view/IVOA/AD
  QLv2RFC
• http//www.ivoa.net/forum/voql-teg/0810/0318.htm

IVOA VOQL-TEG Iñaki Ortiz
IVOA Interoperability Meeting 27-31 Oct 2008,
Baltimore
11
ADQL v2.0-20081028 PR (2/2)

• Changes
• - Clarify relationship between geometric data
  types
• functions to the STC
• - Explicit ref. to STC-X v1.33 and STC-S v1.30.
• - Replace wrong STC-like coordsys samples.
• - Page numbers added.
• - Correct POWER function's arguments description
• - Update ATAN2 function's description.
• - BNF update.

IVOA VOQL-TEG Iñaki Ortiz
IVOA Interoperability Meeting 27-31 Oct 2008,
Baltimore
12
ADQL v2.0-20081030 REC

• Released on 30 October 2008 as IVOA
  Recommendation.
• http//www.ivoa.net/Documents/latest/ADQL.html

IVOA VOQL-TEG Iñaki Ortiz
IVOA Interoperability Meeting 27-31 Oct 2008,
Baltimore