diff --git a/core/model/MySQLDatabase.php b/core/model/MySQLDatabase.php
index 12dfbf900..bcab8f11a 100755
--- a/core/model/MySQLDatabase.php
+++ b/core/model/MySQLDatabase.php
@@ -358,6 +358,18 @@ class MySQLDatabase extends SS_Database {
 		return $fieldList;
 	}
 
+	/**
+	 *
+	 * This is a stub function.  Postgres caches the fieldlist results.
+	 *
+	 * @param string $tableName
+	 *
+	 * @return boolean
+	 */
+	function clear_cached_fieldlist($tableName=false){
+		return true;
+	}
+
 	/**
 	 * Create an index on a table.
 	 *