PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • this is how cassandra did things back in 0.3, following the bigtable model, and it is lousy for us because you have to save up the index in memory as you write data out; since cassandra sstables are not bounded, you can easily OOM doing this, which is why in 0.4 we moved to a separate index file. (additionally, the code is simpler and cleaner when you split different types of data into its own fil
http://www.w3.org/ns/prov#wasQuotedFrom
  • apache.org