Start a defragmentation run on each document which has a node in $nodes. Fragmentation may occur if nodes are inserted into a document using XQuery update extensions. Please note that defragmenting a document changes its internal structure, so any references to this document will become invalid, in particular, variables pointing to some nodes in the document.
$nodes
The sequence of nodes from the documents to defragment
xmldb:defragment($nodes as node()+, $integer as xs:integer) empty()
Start a defragmentation run on each document which has a node in $nodes. Fragmentation may occur if nodes are inserted into a document using XQuery update extensions. The second argument specifies the minimum number of fragmented pages which should be in a document before it is considered for defragmentation. Please note that defragmenting a document changes its internal structure, so any references to this document will become invalid, in particular, variables pointing to some nodes in the document.
$nodes
The sequence of nodes from the documents to defragment
$integer
The minimum number of fragmented pages required before defragmenting
