PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Postgresql decided to do seq scan on some table such as bids and items because it predicted it has to retrieve every single rows in the table (compare the number of rows in the bracket before the actual time and the number of rows in the actual time part).
http://www.w3.org/ns/prov#wasQuotedFrom
  • stackoverflow.com