From 363114ad3eccc257f8dd80f24d51632aa09788d6 Mon Sep 17 00:00:00 2001
From: Mark Hale <mark.hale@physics.org>
Date: Tue, 9 Nov 2021 19:32:46 +0000
Subject: [PATCH] Query optimisation.

---
 model/sparql/GenericSparql.php | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/model/sparql/GenericSparql.php b/model/sparql/GenericSparql.php
index 6605102aa..eb99b8ad1 100644
--- a/model/sparql/GenericSparql.php
+++ b/model/sparql/GenericSparql.php
@@ -1694,11 +1694,9 @@ private function generateTransitivePropertyQuery($uri, $props, $lang, $limit, $a
   SELECT ?object ?label (GROUP_CONCAT(STR(?dir);separator=' ') as ?direct)
   WHERE {
     <$uri> a skos:Concept .
+    <$uri> $propertyClause* ?object .
     OPTIONAL {
-      <$uri> $propertyClause* ?object .
-      OPTIONAL {
-        ?object $propertyClause ?dir .
-      }
+      ?object $propertyClause ?dir .
     }
     OPTIONAL {
       ?object skos:prefLabel ?label .