I have lots of photos. I want to get part of them after sorting. I use series
of queries like:
tracker-sparql -q "SELECT ?photo WHERE{?photo a nmm:Photo} ORDER BY ASC(?photo)
OFFSET 1000 LIMIT 100"
...
tracker-sparql -q "SELECT ?photo WHERE{?photo a nmm:Photo} ORDER BY ASC(?photo)
OFFSET 2000 LIMIT 100"
"Order" seams expensive in tracker.
How to use index? What's the best way to do it?
Thanks!
-Zhenqiang
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