(r1) Obscore-1_1-Next < IVOA

IVOA Web>IvoaDataModel>Obscore-1_1-Next (revision 1) (raw view)~~EditAttach~~

This page collects proposals for modifications to ObsCore 1.1, leading
up to 1.2

---+ Proposed new Features

None yet

---+ Proposed modifications

---++ Improve Sample Queries

The example queries in the appendix should not show people
split-coordinate spatial constraints (s_dec<20 and friends) and rather
use proper geometry constraints (circles or polygons).  Coordinate
queries are often not covered by indexes and are rarely a good idea
physically.

Also, it would be good if we could include at least one or two examples
which show how to just retrieve a subset of columns; "select *" may be
appropriate for certain use cases, but just pulling the data one needs
for a certain use case is better use of resources.  This may in general
not be dramatic in your average obscore query, but when people to
statistics on millions of matches, it does matter.

-- MarkusDemleitner 2023-01-16

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Topic revision: r1 - 2023-01-16 - MarkusDemleitner

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