We are attempting to use 'FILTER( isLiteral(?o) )' to get all literal values for a particular sparql variable. This works for normal literals, but it is not working for CLOB values. If I get everything for the variable of question I get the following:
Since the 'O$RDFVTYP' column specifies 'LIT' I assumed this function would work. The only option I see is to negate the isURI function, however this may degrade performance. Are there any other options?