On 29/01/2021 17:48, Kimball, Adam wrote:
Hi everyone,
I’ve got what I think might be a very basic question. Looking forward to
learning the answer!
I need to store some text in my graph. I would expect that text to be quite
repetitive such that many triples will want to point to the same bit of text:
ex:myExample ex:hasText “admin” .
ex:yourExample ex:hasText “admin” .
ex:theirExample ex:hasText “admin .
In TDB, there is only one "admin" literal stored.
In a smaller graph in-memory, it probably isn't going to make
performance difference.
Andy
It would be no problem to create a node for that specific bit of text, such
that we could rewrite this as:
ex:myExample ex:hasText ex:someText-admin .
ex:yourExample ex:hasText ex:someText-admin .
ex:theirExample ex:hasText ex:someText-admin .
ex:someText-admin ex:value “admin” .
In-memory (actually, in any parser run), URI nodes are cached and reused.
It complicates the model a tiny bit, but I’m fine doing it. I just want to
make sure that it makes good sense from a performance or footprint perspective.
Maybe Jena is already doing this behind the scenes? If that is the case, I’d
probably prefer to keep it simple and use the former method.
Any thoughts?
Don't optimize with data.
Adam
