Index: typo3/sysext/install/updates/class.tx_coreupdates_migrateworkspaces.php
===================================================================
--- typo3/sysext/install/updates/class.tx_coreupdates_migrateworkspaces.php	(Revision 10087)
+++ typo3/sysext/install/updates/class.tx_coreupdates_migrateworkspaces.php	(Arbeitskopie)
@@ -157,12 +157,50 @@
 		$extList = $this->addExtToList($extensionKeys);
 		if ($extList) {
 			$this->writeNewExtensionList($extList);
+			$this->runNewExtensionDbUpdates($extensionKeys);
 			$result = TRUE;
 		}
 		return $result;
 	}
 
 	/**
+	 * Performing all relevant database updates for the newly installed system extensions
+	 *
+	 * @param  array $extensionKeys
+	 * @return void
+	 */
+	protected function runNewExtensionDbUpdates($extensionKeys) {
+
+		$install = t3lib_div::makeInstance('t3lib_install');
+
+		foreach ($extensionKeys as $extension) {
+			$filename = t3lib_extMgm::extPath($extension, 'ext_tables.sql');
+			if (!is_readable($filename)) {
+				continue;
+			}
+
+			$fileContent = t3lib_div::getUrl($filename);
+			$fieldDefinitionsFromFile = $install->getFieldDefinitions_fileContent($fileContent);
+			if (count($fieldDefinitionsFromFile)) {
+				$fieldDefinitionsForCurrentDb = $install->getFieldDefinitions_database(TYPO3_db);
+				$diff = $install->getDatabaseExtra($fieldDefinitionsFromFile, $fieldDefinitionsForCurrentDb);
+				$updates = $install->getUpdateSuggestions($diff);
+				foreach ($updates as $key => $update_block) {
+						// make sure only certain blocks are processed
+						// we don't want to delete anything here!
+					if (!in_array($key, array('add', 'change', 'create_table'))) {
+						continue;
+					}
+					foreach ($update_block as $update) {
+						$this->sqlQueries[] = $update;
+						$GLOBALS['TYPO3_DB']->admin_query($update);
+					}
+				}
+			}
+		}
+	}
+
+	/**
 	 * Check if any table contains draft-workspace records
 	 *
 	 * @return bool