UDF catalogue Proposed Endorsed Note: Request for Comments
This PEN proposes a mechanism for listing
ADQL extension functions that are requried to work the same way in different data centers. It is a supplement to the
ADQL standard, and currently there's text in
ADQL 2.1 referencing it.
Latest version of the UDF catalogue can be found at:
http://ivoa.net/documents/udf-catalogue/
Version control:
https://volute.g-vo.org/svn/trunk/projects/dal/udf-catalogue
Reference Interoperable Implementations
As to the endorsed content, there should always be at least two services carrying the functions. Regrettably, the required
RegTAP res_detail table doesn't carry UCF names (there's always a use case exactly for the most exotic feature you can think of), so you might have to go parse different services' capabilities to find them.
The
RegTAP service at
http://dc.g-vo.org/tap lets you locate UDFs, though. Use a query like
select ivoid
from rr.res_detail
where detail_xpath='/capability/language/languageFeature/feature/form'
and detail_value like 'ivo_healpix_index%'
Implementations Validators
Not really applicable here. It might be nice to have a few standard queries per function, but since
ADQL doesn't have queries without from clauses, they're really hard to write.
Perhaps a case for an
ADQL extension: Facilitate writing tests?
Comments from the IVOA Community during RFC/TCG review period: 2020-02-15 .. 2020-03-30
The comments from the TCG members during the RFC/TCG review should be included in the next section.
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Comments from TCG member during the RFC/TCG Review Period: 2020-02-15 .. 2020-03-30
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IG chairs or vice chairs are also encouraged to do the same, althought their inputs are not compulsory.
TCG Chair & Vice Chair
TCG Vote : Vote_start_date - Vote_end_date
If you have minor comments (typos) on the last version of the document please indicate it in the Comments column of the table and post them in the TCG comments section above with the date.
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DAL |
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DM |
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GWS |
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Registry |
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Semantics |
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DCP |
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KDIG |
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SSIG |
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Theory |
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TD |
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Ops |
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StdProc |
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