--- library/Zend/Db/Table/Abstract.php	(revision 8510)
+++ library/Zend/Db/Table/Abstract.php	(working copy)
@@ -531,7 +531,6 @@
     {
         $this->_setupDatabaseAdapter();
         $this->_setupTableName();
-        $this->_setupMetadata();
         $this->_setupPrimaryKey();
     }
 
@@ -581,6 +580,8 @@
      */
     protected function _setupMetadata()
     {
+        if(sizeof($this->_metadata) > 0) return true;
+
         // Assume that metadata will be loaded from cache
         $isMetadataFromCache = true;
 
@@ -632,6 +633,7 @@
      */
     protected function _setupPrimaryKey()
     {
+        $this->_setupMetadata();
         if (!$this->_primary) {
             $this->_primary = array();
             foreach ($this->_metadata as $col) {
@@ -738,6 +740,8 @@
      */
     public function info($key = null)
     {
+        $this->_setupMetadata();
+
         $info = array(
             self::SCHEMA           => $this->_schema,
             self::NAME             => $this->_name,
@@ -750,7 +754,7 @@
             self::DEPENDENT_TABLES => $this->_dependentTables,
             self::SEQUENCE         => $this->_sequence
         );
-        
+
         if ($key === null) {
             return $info;
         }
@@ -859,6 +863,7 @@
      */
     public function _cascadeUpdate($parentTableClassname, array $oldPrimaryKey, array $newPrimaryKey)
     {
+        $this->_setupMetadata();
         $rowsAffected = 0;
         foreach ($this->_getReferenceMapNormalized() as $map) {
             if ($map[self::REF_TABLE_CLASS] == $parentTableClassname && isset($map[self::ON_UPDATE])) {
@@ -908,6 +913,7 @@
      */
     public function _cascadeDelete($parentTableClassname, array $primaryKey)
     {
+        $this->_setupMetadata();
         $rowsAffected = 0;
         foreach ($this->_getReferenceMapNormalized() as $map) {
             if ($map[self::REF_TABLE_CLASS] == $parentTableClassname && isset($map[self::ON_DELETE])) {
@@ -985,6 +991,7 @@
             }
         }
 
+        $this->_setupMetadata();
         $whereClause = null;
         if (count($whereList)) {
             $whereOrTerms = array();