str to sval

Author: Reigertje

lib/arel/sql_to_arel/pg_query_visitor.rb

@@ -777,7 +777,7 @@ def visit_SQLValueFunction(attribute)
       def visit_String(attribute, context = nil)
         case context
         when :operator
-          attribute.str
+          attribute.sval
         when :const
           Arel::Nodes.build_quoted attribute.str
         else