Index: library/Zend/Db/Adapter/Abstract.php
===================================================================
--- library/Zend/Db/Adapter/Abstract.php	(revision 6350)
+++ library/Zend/Db/Adapter/Abstract.php	(working copy)
@@ -532,7 +532,7 @@
         return $result;
     }
 
-    /**
+	/**
      * Convert an array, string, or Zend_Db_Expr object
      * into a string to put in a WHERE clause.
      *
@@ -547,13 +547,22 @@
         if (!is_array($where)) {
             $where = array($where);
         }
-        foreach ($where as &$term) {
-            if ($term instanceof Zend_Db_Expr) {
-                $term = $term->__toString();
+        foreach ($where as $cond => &$term) {
+            // is $cond an int? (i.e. Not a condition)
+            if (is_int($cond)) {
+                // $term is the full condition
+	            if ($term instanceof Zend_Db_Expr) {
+	                $term = $term->__toString();
+	            }
+            } else {
+                // $cond is the condition with placeholder,
+                // and $term is quoted into the condition
+				$term = $this->quoteInto($cond, $term);
             }
-            $term = '(' . $term . ')';
-        }
-        $where = implode(' AND ', $where);
+	        $term = '(' . $term . ')';
+		}
+
+		$where = implode(' AND ', $where);
         return $where;
     }