[GitHub] [jena] afs commented on issue #1272: The IRI function in UpdateRequests ignores BASE IRIs

[GitBox <gi...@apache.org>]

afs commented on issue #1272:
URL: https://github.com/apache/jena/issues/1272#issuecomment-1137758183

   There isn't anything special about update: the prologue accumulates. For BASE that is "replace" although the new base URI is resolved against the previous one, starting from the file or URL the query is read from.
   
   ```
   BASE <http://base/>
   PREFIX ex: <z1/z2/>
   BASE <y/>
   PREFIX : <a>
   
   SELECT (:123 AS ?X) (ex:456 AS ?Y)
   WHERE {}
   ```
   gives `http://base/y/a123` ,`http://base/z1/z2/456`.
   ```
   
   Repeated prologues in update are just updating the active prefixes and base as the parser goes along.
   


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