https://github.com/OpenMage/magento-lts/issues/2793

Author: fballiano

lib/Magento/Db/Adapter/Pdo/Mysql.php

@@ -132,7 +132,7 @@ public function quote($value, $type = null)
         $this->_connect();
 
         if ($type !== null
-            && rray_key_exists($type = strtoupper($type), $this->_numericDataTypes)
+            && array_key_exists($type = strtoupper($type), $this->_numericDataTypes)
             && $this->_numericDataTypes[$type] == Zend_Db::FLOAT_TYPE
         ) {
             $value = $this->_convertFloat($value);