Undefined function db_columhn_exists()

Hi,

after installing the latest night version for 6.x-1.x-dev, I go to update.php, and after running I got the following error

An error occurred. http://www.example.com/update.php?id=27&op=do
Fatal error: Call to undefined function db_columhn_exists() in /home/example.com/www/sites/all/modules/xmlsitemap/xmlsitemap_user/xmlsitemap_user.install on line 120

Next screen says

The update process was aborted prematurely while running update #6102 in xmlsitemap_user.module. All errors have been logged. You may need to check the watchdog database table manually.

* Main page
* Administration pages

The following queries were executed
xmlsitemap_node module
Update #6101

* UPDATE {system} SET weight = 7 WHERE name = 'xmlsitemap_node'

xmlsitemap_term module
Update #6101

* UPDATE {system} SET weight = 7 WHERE name = 'xmlsitemap_term'