From 2a1f319b37dc3af45c136bfdc9226515c2fefaf2 Mon Sep 17 00:00:00 2001
From: Kelly Rauchenberger <fefferburbia@gmail.com>
Date: Sat, 21 Jan 2017 18:56:38 -0500
Subject: Fixed statement generation involving nullity/non-nullity

---
 lib/statement.cpp | 21 ++++++++++++++++++++-
 1 file changed, 20 insertions(+), 1 deletion(-)

diff --git a/lib/statement.cpp b/lib/statement.cpp
index 52fa00d..f8d5346 100644
--- a/lib/statement.cpp
+++ b/lib/statement.cpp
@@ -723,7 +723,26 @@ namespace verbly {
       
       case type::singleton:
       {
-        return {singleton_.value_};
+        switch (singleton_.comparison_)
+        {
+          case comparison::equals:
+          case comparison::does_not_equal:
+          case comparison::is_greater_than:
+          case comparison::is_at_most:
+          case comparison::is_less_than:
+          case comparison::is_at_least:
+          case comparison::is_like:
+          case comparison::is_not_like:
+          {
+            return {singleton_.value_};
+          }
+          
+          case comparison::is_not_null:
+          case comparison::is_null:
+          {
+            return {};
+          }
+        }
       }
       
       case type::group:
-- 
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