Stardog 9.2 - I can't reuse variables in SELECT queries

Created by Steve Place, Modified on Wed, 20 Mar 2024 at 11:12 AM by Steve Place

Prior to Stardog 9.2, Stardog incorrectly allowed you to reuse variables in SELCET queries, like this:

SELECT (COUNT(?count) AS ?count)
WHERE {
    ?count ?p ?o .
}

This violates the SPARQL spec, so we changed the query engine to not allow this. Instead, you can write your queries like this:

SELECT (COUNT(?count0) AS ?count)
WHERE {
    ?count0 ?p ?o .
}