: cardinality estimation
HI,
I just want to see how cardinality estimation can be done
programmatically. whatever query or dataset it may be, but I want to see it
practically.
On Tue, Apr 12, 2022 at 4:33 PM rve...@dotnetrdf.org
wrote:
> Hi
>
> Could you provide more detail about what you
HI,
I just want to see how cardinality estimation can be done
programmatically. whatever query or dataset it may be, but I want to see it
practically.
On Tue, Apr 12, 2022 at 4:33 PM rve...@dotnetrdf.org
wrote:
> Hi
>
> Could you provide more detail about what you are after? The
APIs for this
Rob
From: Hashim Khan
Date: Tuesday, 12 April 2022 at 14:02
To: users@jena.apache.org
Subject: cardinality estimation
Hi,
I would like to ask about any specific class or method in Jana which
can return a value showing the estimated number of triples for a SPARQL
query
Hi,
I would like to ask about any specific class or method in Jana which
can return a value showing the estimated number of triples for a SPARQL
query?
Regards
--
*Hashim Khan*
ion/query/explain.html
>> <https://jena.apache.org/documentation/query/explain.html>), however, the
>> result of explaining the query does not include the cardinality estimation.
>> Best regards,
>>
>> Giorgio
>
> Query optimization happens in two stag
://jena.apache.org/documentation/query/explain.html
<https://jena.apache.org/documentation/query/explain.html>), however, the
result of explaining the query does not include the cardinality estimation.
Best regards,
Giorgio
Query optimization happens in two stages:
1/ Rewrite the algebra to
ult of explaining the query does not include the cardinality estimation.
Best regards,
Giorgio
