added an option to cache paginated queries in AG v8

ncbo · Jan 24, 2024 · 1707d38 · 1707d38
1 parent db2b330
commit 1707d38
Showing 1 changed file with 8 additions and 4 deletions.
diff --git a/lib/goo/sparql/solutions_mapper.rb b/lib/goo/sparql/solutions_mapper.rb
@@ -35,10 +35,14 @@ def map_each_solutions(select)
         list_attributes = Set.new(klass.attributes(:list))
         all_attributes = Set.new(klass.attributes(:all))
 
-        # for using prefixes before queries
-        # mdorf, 7/27/2023, AllegroGraph supplied a patch (rfe17161-7.3.1.fasl.patch)
-        # that enables implicit internal ordering. The patch requires the prefix below
-        select.prefix('franzOption_imposeImplicitBasicOrdering: <franz:yes>') if @options[:page]
+        if @options[:page]
+          # for using prefixes before queries
+          # mdorf, 7/27/2023, AllegroGraph supplied a patch (rfe17161-7.3.1.fasl.patch)
+          # that enables implicit internal ordering. The patch requires the prefix below
+          select.prefix('franzOption_imposeImplicitBasicOrdering: <franz:yes>')
+          # mdorf, 1/24/2024, AllegroGraph 8 introduced a new feature that allows caching OFFSET/LIMIT queries
+          select.prefix('franzOption_allowCachingResults: <franz:yes>')
+        end
 
         # for troubleshooting specific queries (write 1 of 3)
         # ont_to_parse = 'OAE'