See the spec:
https://www.w3.org/TR/sparql11-results-csv-tsv/#tsvIt's on purpose. TSV writes everything in a form parsable to extract the kind of the term (URI, literal, bnode, variable) terms and variables in syntax form.
Andy
On 15/05/17 09:21, Laura Morales wrote:
It looks like that when the output format is set to TSV, variables name retain the "?" symbol, for example "?name". I don't know if this is on purpose or if it's a bug, because all other formats get rid of the ? symbol.
