Hello,
I am facing some performances issues, probably due to unexpected query reevaluation. Might it be due to the optimizer ? Here is a code to test
declare function local:test($i){ let $data := fn:for-each(1 to 10000000, function($a){2*$a} ) (: let $data := xquery:eval("fn:for-each(1 to 10000000, function($a){2*$a} )") :) return (1 to $i) ! local:test2($data,.) };
declare function local:test2($data, $dummy) { count($data) };
(1 to 10) ! prof:time(local:test(.))
Output :
683.76 ms 1137.95 ms 1727.68 ms 2151.06 ms 2694.84 ms 3189.57 ms 3725.1 ms 4277.51 ms 4815.74 ms 5417.79 ms
Note that using xquery:eval (toggling the comment inside local:test). seems to perform correctly. However I can't use this trick as a workaround.
(1 to 10) ! prof:time(local:test(.)) Ouput :
2472.71 ms 825.61 ms 3013.14 ms 986.81 ms 2982.97 ms 778.24 ms 1195.33 ms 3280.7 ms 976.96 ms 913.69 ms