Stats work the same way with TDB2.
See the thread "TDB2 tdbstats Script Error" from earlier this month.
On 27/04/18 07:24, Conal Tuohy wrote:
I have recently switched the back end of my Fuseki2 server from TDB to
TDB2.
In the past I have used the tdbstats command line tool for TDB to generate
a statistics file, to help the query optimizer, but there is apparently no
equivalent for TDB2.
My TDB2 dataset is built using the tdb2.tdbloader utilityl, from an N-Quads
file of 3.5M triples. I have some CONSTRUCT queries which run rather
slowly, and I wondered if TDB2 needed a statistics file as TDB used to, or
if there's some other optimization step I might be missing.
Maybe - it's the not the only reason queries run slow. What's the query?
Andy
