On 25/05/13 19:45, Sarven Capadisli wrote:
Hi,
What does Optimize.noOptimizer() [1] entail?
It installs, as the global optimizer, one that is extremely fast and
efficient ... at doing nothing.
It returns the algebra expression unchanged.
Does it impact or deactivate TDB Optimizer [2]?
TDB calls the main optmizer - if it's been set to the null optimizer no
change to the algebra is done (BGP reordering is handled separately).
Andy
[1]
http://jena.apache.org/documentation/javadoc/arq/com/hp/hpl/jena/sparql/algebra/optimize/Optimize.html#noOptimizer()
[2] http://jena.apache.org/documentation/tdb/optimizer.html
-Sarven
http://csarven.ca/#i
