Saxon

Legacy ID: #2977514 Legacy Poster: amitabh ojha (amitabhojha)

I invite your attention to the following queries and results thereof (expressed as a sequence here), as returned by saxon7.jar :- Query 1 (<item>a</item>) union (<item>a</item>) Result 1 (<item>a</item>, <item>a</item>) Query 2 let $a := <item>a</item> return $a union $a Result 2 (<item>a</item>) Query 3 (<item>a</item>, <item>b</item>) union (<item>b</item>, <item>c</item>) Result 3 (<item>a</item>, <item>b</item>, <item>b</item>, <item>c</item>) Query 4 let $a := <item>a</item> let $b := <item>b</item> let $c := <item>c</item> return ($a, $b) union ($b, $c) Result 4 (<item>a</item>, <item>b</item>, <item>c</item>) Since I am conceptually not so clear about XQuery union operation, I will be very grateful if you would kindly confirm to me if the above results, as returned by saxon7.jar are all consistent with the XQuery rules. Thanks. Amitabh Ojha