Index: typo3/sysext/dbal/class.ux_t3lib_db.php
===================================================================
--- typo3/sysext/dbal/class.ux_t3lib_db.php	(revision 5838)
+++ typo3/sysext/dbal/class.ux_t3lib_db.php	(working copy)
@@ -1132,8 +1132,11 @@
 				$str = $type;
 				break;
 			case 'adodb':
-				$rs = $this->handlerInstance[$this->lastHandlerKey]->SelectLimit('SELECT * FROM '.$this->quoteFromTables($table),1);
-				$str = $rs->MetaType($type, $max_length);
+				$str = '';
+				if (in_array($table, $this->cache_fieldType)) {
+					$rs = $this->handlerInstance[$this->lastHandlerKey]->SelectLimit('SELECT * FROM ' . $this->quoteFromTables($table), 1);
+					$str = $rs->MetaType($type, $max_length);
+				}
 				break;
 			case 'userdefined':
 				$str = $this->handlerInstance[$this->lastHandlerKey]->MetaType($str,$table,$max_length);