TAP 1.1 comments

Walter Landry wlandry at caltech.edu
Mon May 9 01:55:08 CEST 2016


Hi Everyone,

Here are some comments on the TAP 1.1 proposal.

1) The text proposes

     INTERSECTS and CONTAINS are required. POINT, CIRCLE, and POLYGON
     are required. POINT (and point-valued columns) cannot be used as
     an argument to INTERSECTS.

   What is the rationale for not allowing POINT's in INTERSECTS?

2) The text says

     A query with MAXREC=0 can be used with a simple query
     (e.g. SELECT * FROM some_table) to extract and examine the
     VOTable metadata (assuming FORMAT=votable). Note: in this version
     of TAP, this is the only mechanism to learn some of the detailed
     metadata, such as coordinate systems used.

   I thought that TAP_SCHEMA.columns has all of that metadata?

3) I would really like to add a requirement that TAP/async jobs run
   immediately if the parameter PHASE=RUN is passed during the initial
   submission.  As I understand it, this was always intended to be
   true, but was never specified.  I can work on the text if needed.

Cheers,
Walter Landry


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