Value of moving OPTIONAL clauses to the end of a graph pattern?

From: Bob DuCharme <bob@snee.com>
Date: Thu, 20 Dec 2012 16:10:04 -0500
To: public-sparql-dev@w3.org
Message-ID: <50D37EAC.70200@snee.com>

Since OPTIONAL clauses have no chance of reducing the search space for 
their containing graph pattern, does it make sense as a general rule of 
thumb to put them after all the ones that do, i.e. after the 
non-OPTIONAL triple patterns?

thanks,

Bob

Received on Thursday, 20 December 2012 21:11:27 UTC