Using the attribute index I can get all attributes of a specific name that have 
a specific value or token (db:attribute()) and I can get all the values for all 
attributes that start with a specific prefix (index:attributes()) but I don’t 
see a way to get, from the index, all the values for all the attributes of a 
specific name.

Have I missed something?

My use case is I have an index over my docs where each index entry is of the 
form:

  <doc-to-bundle-index-entry key="10503999" filename="c_DataCertification.dita" 
dbpath="product/data-certification/concept/c_DataCertification.dita" 
bundles="bundle-platcap-platform-capabilities"/>

And I would like the distinct-values of all the @bundles attributes. There are 
about 40K entry elements.

Of course I can do:

doc-to-bundle-index/doc-to-bundle-index-entry/@bundles ! tokenize(., '\s+')
=> distinct-values()

And that seems plenty fast, but it seemed like there should be a way to do it 
with the indexes alone. But it may be that the query on the @bundle attribute 
actually uses the index anyway…

Cheers,

E.

_____________________________________________
Eliot Kimber
Sr Staff Content Engineer
O: 512 554 9368
M: 512 554 9368
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