Changes

The XQuery expression below serves as an example on how large files can be downloaded and written to a file with constant memory consumption:

file:write-binary('output.data', fetch:binary('http://files.basex.org/xml/xmark111mb.zip'))

If lazy items are serialized, they will be streamed as well.

| '''Example'''

|In the following example, a file is deleted before its content is returned. To avoid a “file not found” error when serializing the result, the content must be cached:

let $file := 'data.txt'

let $text := lazy:cache(file:read-text($file))

return (file:delete($file), $text)

|}