NextGraph
/
oxigraph
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Activity

Fixes empty IN expression optimization

Browse Source
pull/516/head
Tpt 1 year ago committed by Thomas Tanon
parent 0a064a8704
commit 4cc9e4008b
4 changed files with 40 additions and 15 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Show Stats Download Patch File Download Diff File
  1. 17
      lib/src/sparql/plan_builder.rs
  2. 1
      testsuite/oxigraph-tests/sparql/in_empty_error.rq
  3. 9
      testsuite/oxigraph-tests/sparql/in_empty_error.srx
  4. 6
      testsuite/oxigraph-tests/sparql/manifest.ttl

17
lib/src/sparql/plan_builder.rs
Unescape View File

@ -432,13 +432,21 @@ impl<'a> PlanBuilder<'a> {
Box::new(self.build_for_expression(b, variables, graph_name)?), Box::new(self.build_for_expression(b, variables, graph_name)?),
), ),
Expression::In(e, l) => { Expression::In(e, l) => {
let e = self.build_for_expression(e, variables, graph_name)?;
if l.is_empty() { if l.is_empty() {
return Ok(PlanExpression::Literal(PlanTerm { // False except on error
PlanExpression::If(
Box::new(e),
Box::new(PlanExpression::Literal(PlanTerm {
encoded: false.into(), encoded: false.into(),
plain: false.into(), plain: false.into(),
})); })),
} Box::new(PlanExpression::Literal(PlanTerm {
let e = self.build_for_expression(e, variables, graph_name)?; encoded: false.into(),
plain: false.into(),
})),
)
} else {
PlanExpression::Or( PlanExpression::Or(
l.iter() l.iter()
.map(|v| { .map(|v| {
@ -450,6 +458,7 @@ impl<'a> PlanBuilder<'a> {
.collect::<Result<_, EvaluationError>>()?, .collect::<Result<_, EvaluationError>>()?,
) )
} }
}
Expression::Add(a, b) => PlanExpression::Add( Expression::Add(a, b) => PlanExpression::Add(
Box::new(self.build_for_expression(a, variables, graph_name)?), Box::new(self.build_for_expression(a, variables, graph_name)?),
Box::new(self.build_for_expression(b, variables, graph_name)?), Box::new(self.build_for_expression(b, variables, graph_name)?),

1
testsuite/oxigraph-tests/sparql/in_empty_error.rq
Unescape View File

@ -0,0 +1 @@
SELECT ?r WHERE { BIND((?foo IN ()) AS ?r) }

9
testsuite/oxigraph-tests/sparql/in_empty_error.srx
Unescape View File

@ -0,0 +1,9 @@
<?xml version="1.0"?>
<sparql xmlns="http://www.w3.org/2005/sparql-results#">
<head>
<variable name="r"/>
</head>
<results>
<result></result>
</results>
</sparql>

6
testsuite/oxigraph-tests/sparql/manifest.ttl
Unescape View File

@ -30,6 +30,7 @@
:unbound_variable_in_subquery :unbound_variable_in_subquery
:one_or_more_shared :one_or_more_shared
:one_or_more_star :one_or_more_star
:in_empty_error
) . ) .
:small_unicode_escape_with_multibytes_char rdf:type mf:NegativeSyntaxTest ; :small_unicode_escape_with_multibytes_char rdf:type mf:NegativeSyntaxTest ;
@ -140,3 +141,8 @@
[ qt:query <one_or_more_star.rq> ; [ qt:query <one_or_more_star.rq> ;
qt:data <one_or_more_star.ttl> ] ; qt:data <one_or_more_star.ttl> ] ;
mf:result <one_or_more_star.srx> . mf:result <one_or_more_star.srx> .
:in_empty_error rdf:type mf:QueryEvaluationTest ;
mf:name "IN should propagate errors on the left side, even on the empty input" ;
mf:action [ qt:query <in_empty_error.rq> ] ;
mf:result <in_empty_error.srx> .

Write Preview
Loading…
Cancel
Save