About: http://webisa.webdatacommons.org/216568437

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	When the source and target are of similar size and the index guidelines described previously in the 'Index Best Practices' section are applied to the source and target tables, a merge join operator is the most efficient query plan.
http://www.w3.org/ns/prov#wasQuotedFrom	microsoft.com