Hi, We are using jena-fuseki 0.2.6 with Jena TDB 2.10 and we would like to upgrade to new version. I try to test Jena-fuseki 2.3.0 with Jena-TDB 3.0.0 and I found some incompatibility. When I keep original files with data and use new Jena-fuseki, sometimes simple query doesn't return any data. After some debugging I found that problem is in org.apache.jena.tdb.lib.NodeLib#hash(Hash h, String lex, String lang, String datatype, NodeType nodeType) and org.apache.jena.tdb.lib.NodeLib#setHash(Hash h, Node n) Old version of Jena uses for string nodes dataType " http://www.w3.org/2001/XMLSchema#string"; but new version sets this as null and later is replaced by an empty string. This completely changes calculated hash and Jena-TDB is not able to find node.
old version string to calculate hash : e242284a-0fca-4c34-a17a-f8a26935edc1|| http://www.w3.org/2001/XMLSchema#string|Literal new version string to calculate hash : e242284a-0fca-4c34-a17a-f8a26935edc1|||Literal Is this is a bug, or Jena-TDB store is not compatible between versions and I need to do export and import? Thanks Radek.
