About: http://webisa.webdatacommons.org/185232178

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	If so, always sending the values for all columns would mean that heap-only tuples were never created for tables that have any indices other than the primary key.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com