Hi Marco, The proposed solution is way too slow. let $xml := 'd:\Temp\CDW\HOME\id4879_BO201801_HomeSubscriberMovementFact.xml' let $xsd := 'd:\Temp\CDW\HOME\HomeSubscriberMovementFact.xsd' let $validate := validate:xsd-report($xml, $xsd, '1.1') return file:write("output.xml", copy $newvalidate := $validate modify (delete node $newvalidate//@url) return $newvalidate ) I guess delete node... is too heavy. It runs for 143 seconds. Without it just 11 seconds. The input XML file size is about 40MB. The output.xml file has about the same size. That's why I was proposing to change the default output format of the validation. Regards, Yitzhak Khabinsky Technical Services Lead Millicom International Services LLC 396 Alhambra Circle, Suite 1100 Coral Gables, FL 33134 Skype4B: +1 (305) 445-4172 Tel: (954) 684-8673 yitzhak.khabinsky@millicom.com<mailto:.khabinsky@millicom.com> www.millicom.com<https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.millicom.com%2F&data=02%7C01%7CMalcolm.Stewart%40microsoft.com%7C9338023699c2494d08be08d4ad12ce55%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636323743686702678&sdata=DxQ9dfL259rpdVZ9seOAcR6bvgxRobyIerOgvTgPc90%3D&reserved=0> From: Yitzhak Khabinsky Sent: Thursday, April 19, 2018 2:51 PM To: m.lettere@gmail.com Subject: Re: [basex-talk] Validation Module: validate:xsd-report( ) improvement Hi Marco, Thanks for the proposed solution. It works. But I was referring to the default behavior. The url attribute is redundant for every message element. Regards, Yitzhak Khabinsky Technical Services Lead Millicom International Services LLC 396 Alhambra Circle, Suite 1100 Coral Gables, FL 33134 Skype4B: +1 (305) 445-4172 Tel: (954) 684-8673 yitzhak.khabinsky@millicom.com<mailto:.khabinsky@millicom.com> www.millicom.com<https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.millicom.com%2F&data=02%7C01%7CMalcolm.Stewart%40microsoft.com%7C9338023699c2494d08be08d4ad12ce55%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636323743686702678&sdata=DxQ9dfL259rpdVZ9seOAcR6bvgxRobyIerOgvTgPc90%3D&reserved=0>