Use arel for joining with rank table

lib/pg_search/scope_options.rb

@@ -164,7 +164,13 @@ def rank
     end
 
     def rank_join(rank_table_alias)
-      "INNER JOIN (#{subquery.to_sql}) AS #{rank_table_alias} ON #{primary_key} = #{rank_table_alias}.pg_search_id"
+      arel_table = model.arel_table
+      subquery_arel = subquery.arel.as(rank_table_alias)
+
+      arel_table
+        .join(subquery_arel)
+        .on(arel_table[model.primary_key].eq(subquery_arel[:pg_search_id]))
+        .join_sources
     end
 
     def include_table_aliasing_for_rank(scope)

spec/integration/pg_search_spec.rb

@@ -1088,6 +1088,10 @@
       it "finds by a combination of the two" do
         expect(Post.search_by_content_with_tsvector("phooey commentone").map(&:id)).to eq([expected.id])
       end
+
+      it "finds by the tsvector column when using order" do
+        expect(Post.search_by_content_with_tsvector("phooey").order("#{Post.table_name}.id").map(&:id)).to eq([expected.id])
+      end
     end
 
     context "when using multiple tsvector columns" do