From 710cb0779f01e68d09f7b5b31abaa010172f7097 Mon Sep 17 00:00:00 2001
From: Tetsuo Seto <tseto@us.ibm.com>
Date: Fri, 12 May 2017 17:07:35 -0700
Subject: [PATCH] Avoid duplicate column restriction in where

---
 lib/sql.js | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/lib/sql.js b/lib/sql.js
index cea7bea..4845242 100644
--- a/lib/sql.js
+++ b/lib/sql.js
@@ -1159,7 +1159,12 @@ SQLConnector.prototype._buildWhere = function(model, where) {
         }
       }
     }
-    whereStmts.push(stmt);
+    var columnRestricted = false;
+    whereStmts.forEach(function(stmt) {
+      if (columnRestricted) return;
+      columnRestricted = stmt.sql.indexOf(columnName) >= 0;
+    });
+    if (!columnRestricted) whereStmts.push(stmt);
   }
   var params = [];
   var sqls = [];