Hi,
The translation of SPARQL to SQL results in RDF_QUAD self-joins and a call to some functions like __ro2sql, __i2idn that are not defined in the database but programatically in Virtuoso.
My question: Do these functions perform database calls to retrieve the required information from the other tables (like RDF_OBJ, _RDF_LANGUAGE, etc ) OR the table values are stored in memory/or temporary in files and then acceded by them.
Thanks in advance.