</re>
and a simple query like this
let $t := doc("file.xml")
for $a in $t//re
let $b := $a/de
let $c := $a/se
return
(element r {attribute f {$b || "-" || $c},
<i>{$a/id/data(.)}</i>, <f>{$b/data(.)}</f>, <p>{$a/p/data(.)}</p>,
<l>{$c/data(.)}</l>, <s>{$a/s/data(.)}</s> ,<h>{$a/h/data(.)}</h>, <b>{$a/b/data(.)}</b>, <m>{$a/m/data(.)}</m> })
I have noticed that while the preceding query works fine, if I substitute all the elements in it (e.g, <s>{$a/s/data(.)}</s>) with their contents ($a/s/) (i.e., I expect that the exact same element of the document is inserted), BaseX gets out of main memory. Any explanation? Thanks.