Hello (and happy new year 2015 !)

I am facing some performance issues opening "big" databases due to an (unexpected for me) argument evaluation during function composition. Is this a normal behavior ?

Cheers

Here is a code description :

declare variable $db := db:open("MyBigDataBase");

declare function local:elts($db){$db//element()};

declare function local:compose($f1 as function(*), $f2 as function(*)) as function(*){ function($a) { $f1($f2($a)) }};

declare function local:count_elt($db) {count(local:elts($db))};

prof:time(local:count_elt($db)),

prof:time(count(local:elts($db))),

prof:time(local:compose(count#1,local:elts#1) ($db))

ouput :

3.1 ms

0.02 ms

100047.53 ms

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