Thanks for the reply. Il 03.01.2022 20:49 A. Soroka ha scritto:
> Is it possible for you to make a copy of the database to query offline? > That can be expensive in storage, but it's really the simplest thing to do > in many ways. > > Adam > > On Mon, Jan 3, 2022, 1:09 PM Andy Seaborne wrote: > >> On 03/01/2022 17:44, [email protected] [2]wrote: >> >>> Hi, you are right, I was not clear in the request. I try to explain myself better. I have a knowledge base of over a billion triples. I am testing a query that returns about 2 million results (in the future I will have many queries that will return a lot of data) On the client side I have to allow the download of the results in CSV format (on asynchronous request, not through batch). >> How long does it take? >> >>> But, with these volumes of data, we can have 2 types of errors: - OutOfMemory on the Result (I can increase the heap size....) >> How are you making the query? (what software?) Fuseki will stream results back and with the Jena client code, can provide a end-to-end streaming solution. The fastest results for is the binary Thrift encoding. RDFConnectionFuseki will use this. Some queries don't stream. For example, can you clarify - a query? What kind of query >>> >>>> - "many results", any number? - What do you consider slow and >>> inefficient and what are would you consider ideal? >>> >>>> Also, why do >>> you think that the HTTP call is the bottleneck? I think that this is a wrong assumption. Try to run a simple query and you will see that the HTTP call is not the bottleneck. Sent: Monday, 3 January 2022 12:59 To: u >>> >>>> margin-left:5px; width:100%">Subject: >>> dbquery Hi, i am using a fuseki server and need to run a query which returns a lot of results. The use of the HTTP call (http: // localhost: 3030 / ds / query = myQuery) is very >>> >>>> any way to do this? >>> tyle="padding-left:5px; border-left:#1010ff 2px solid; margin-left:5px; width:100%">Con Tiscali Mobile Smart 70 hai 70 GB in 4G, minuti illimitati e 100 SMS a soli 7,99EUR al mese http://tisca.li/Smart70 [1] [4] Con Tiscali Mobile Smart 70 hai 70 GB in 4G, minuti illimitati e 100 SMS a soli 7,99EUR al mese Con Tiscali Mobile Smart 70 hai 70 GB in 4G, minuti illimitati e 100 SMS a soli 7,99€ al mese http://tisca.li/Smart70
