Hi,
let's say I have two SPARQL query strings:
---- Q1 ----
PREFIX : <http://example/>
SELECT ?v
{ :x :p ?v . FILTER(?v = 1) }
------------
---- Q2 ----
PREFIX : <http://example/>
SELECT ?v
{
:x :p ?v .
FILTER ( ?v = 1 )
}
------------
Once the queries are parsed into two Query objects (say, q1 and q2),
I can use q1.equals(q2) to check if two queries are equal (i.e. exactly
the same, modulo extra spaces/formatting). Great.
However, let's look at another query string:
---- Q3 ----
PREFIX : <http://example/>
SELECT ?y
{
:x :p ?y .
FILTER ( ?y = 1 )
}
------------
The only difference between Q3 and Q1|Q2 is that we have a different
variable name (i.e. ?y instead of ?v). The queries are different, but
they are "equivalent": they are structurally the same, only variable
names are different.
Is there already in ARQ a way to compare queries to see if they are
equivalent or not?
I found the equiv method in BasicPattern, is there something similar
for entire queries?
Thanks,
Paolo
