Hi
What happens if you just remove the resource type triple pattern ? As rdf:type
is very expensive due to its nature, as in RDF_QUAD table you are going to have
many members (or participants) in the rdf:type relation that have to be
evaluated whenever its used in a query, hence the overhead.
Dear all,
i have some difficulty with text search in virtuoso using bif:contains
property.
if i specified graph name or resource type, the text search query runs
extremely slow ~~
but it runs very fast if i remove graph CLAUSE and resource type triple
pattern ,
the two queries are shown be
