UCD for query

Mcglynn, Thomas A. (GSFC-6601) Thomas.A.McGlynn at NASA.gov
Tue Oct 21 16:48:16 CEST 2014

Personally given the complexity of many queries, I thought that
might work really well....   :).

More seriously, I'd be interested in how others have been finding value 
in carefully defined UCDs.  Other than their usage as column markers in 
some of the DAL protocols (replaced by UTypes for more recent 
protocols), we (at the HEASARC) haven't seen large benefits to our 
users, but we likely are not utilizing them as effectively as we might.  
The primary use case we have is to search for tables with particular 
characteristics, but when we have compared this with using text searches 
in the table documentation the results were comparable.   What are other 
groups doing?


Sebastien Derriere wrote:
>   Hello,
>   Marco is right, there is no proper term to describe an ADQL query
> string with the current UCD vocabulary. The current meta.software
> can't work, because its syntax flag 'S' says it can only be used to
> qualify another UCD word.
>   We could take the opportunity of the undergoing revision of the
> ucd list to include a new word in the "meta" branch, e.g. "meta.query"
> Its definition could be "Expression of a request performed to retrieve
> data, for example a SQL or ADQL query".
>   I'd rather not have too much details, trying to avoid proliferation of
> terms like meta.query.SQL.mySQL...
> Sebastien
> Le 21/10/2014 12:58, Marco Molinaro a écrit :
>> Hi Walter,
>> I added semantics' list to your inquiry.
>> meta.adql does not exist, there is no other meta UCD that resembles 
>> what you're trying, I think.
>> Maybe the nearest choice could be a meta.software, but I must say I 
>> wouldn't like it if I had to do the same thing.
>> Using meta.adql would probably result in something not understood by 
>> clients.
>> It doesn't help SQL/ADQL has no specific mime-type that could have 
>> helped in the description of the (param?) you're trying to set (using 
>> some grouping).
>> Cheers,
>>      Marco
>> 2014-10-20 23:52 GMT+02:00 Walter Landry <wlandry at caltech.edu 
>> <mailto:wlandry at caltech.edu>>:
>>     Hello,
>>     I am running a TAP service, and I want to store the full ADQL
>>     query in
>>     the resulting table.  What UCD should I use for that? I could not
>>     find anything suitable in the UCD1+ list
>>     http://www.ivoa.net/documents/REC/UCD/UCDlist-20070402.html
>>     Should I use something like meta.adql?
>>     Thanks,
>>     Walter Landry
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