catalog sorting

gistfile1.txt

unique_id	key	value
4e1e2de29a86652fda00074f	sort_4dfa34a89a8665545200000a	1
4e1e2de29a86652fda00074f	sort_4dfa37059a86655455000011	5
4e1e2de19a86652fda00073b	sort_4dfa34a89a8665545200000a	2
4e1e2de19a86652fda00073b	sort_4dfa4a8e9a866569d700000c	3




To 

<Query>
	<Dimensions>true</Dimensions>
	<RecordsSet>true</RecordsSet>
	<RecordOffset>0</RecordOffset>
	<RecordsPerPage>10</RecordsPerPage>
	<BusinessRulesResult>true</BusinessRulesResult>
	<AppliedFilters>true</AppliedFilters>
	<Category>
		<CategoryId>4dfa34a89a8665545200000a</CategoryId>
	</Category> 
	<Sorts>
		<Sort>
			<sort-key>sort_4dfa34a89a8665545200000a</sort-key>
			<sort-direction>Descending</sort-direction>
		</Sort>
	</Sorts>
 </Query>