|-
| '''Summary'''
|By default, resources specified via [[Databases#XML Documents|fn:doc]] and [[Databases#XML Documents|fn:collection]] are looked up both in the database and in the file system. If you always use {{Function|Database|db:openpre}} to access databases, it is recommendable to disable this option:
* No locks will be created for the two functions (see [[Transaction Management#Limitations|limitations of database locking]] for more details).
* Access to local and external resources will be faster, as the database lookup will be skipped.