proposed VODataService changes

[Francois Ochsenbein]

Pat,

>
>On 2008-5-20 08:07, Francois Ochsenbein wrote:
>> would be interesting to specify what's the scope of the elements
>> included in the <join>: can these refer to different catalogs ?
>>
>>    <catalog>
>>      <name>The X survey catalog</name>
>>      <description>...</description>
>>      <table>
>>         <schema>...</schema>
>>         <name>...</name>
>>         <description>...</description>
>>         <column>...</column>
>>         <column>...</column>
>>         ...
>>      </table>
>>      <function>                      <!-- optional -->
>>         <schema>...</schema>
>>         <name>...</name>
>>         ...
>>      </function>
>>      <join>                          <!-- optional -->
>>         ...
>>      </join>
>>    </catalog>
>>
>
>

Pat,

Do you mean it would be legal that a <join> in the Registry can define
a foreign key which would refer to a column of a table of another catalog --
in other terms, a foreign key to another data server ?

Cheers, francois
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Francois Ochsenbein       ------       Observatoire Astronomique de Strasbourg
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