Hi, We are running MarkLogic 8.0-3 and using the "additional query" technique to influence the ordering of search results (as discussed here http://markmail.org/message/cmxhjxd77clicsbz). While this is mostly working, we have found that when the "boosting queries" are specified with weights less than 0.5, they have no influence on the score at all. The relevant documentation ( https://docs.marklogic.com/guide/search-dev/relevance#id_22791) says "To lower the score contribution, set the weight between 0 and 1.0". There is no suggestion that any value less than 0.5 is effectively zero.
As as an example, given an empty database with an element range index set up on the element "name" as follows: import module namespace admin = "http://marklogic.com/xdmp/admin"; at "/MarkLogic/admin.xqy"; let $dbid := xdmp:database("Documents") let $config := admin:get-configuration() let $rangespec := admin:database-range-element-index("string", "", "name", "http://marklogic.com/collation/";, fn:false() ) let $new-config := admin:database-add-range-element-index($config, $dbid, $rangespec) return admin:save-configuration($new-config) Running the following with the weight set to 0.5 will show that the "Bob" document is indeed scored higher than the others, while when this is set to 0.49, all the documents come out with the same weight: import module namespace search = "http://marklogic.com/appservices/search"; at "/MarkLogic/appservices/search/search.xqy"; let $weight := 0.5 let $_ := xdmp:document-insert("/alf", <person><name>Alf</name><role>Blah</role></person>) let $_ := xdmp:document-insert("/bob", <person><name>Bob</name><role>Blah</role></person>) let $_ := xdmp:document-insert("/cal", <person><name>Cal</name><role>Blah</role></person>) let $or-query := cts:or-query(( cts:and-query(()), cts:element-range-query(xs:QName("name"), "=", "Bob", ("score-function=linear"), $weight) )) let $options := <options xmlns="http://marklogic.com/appservices/search";> <additional-query>{$or-query}</additional-query> </options> let $search := search:search("Blah", $options) return for $result in $search//search:result return $result/@uri || ": " || $result/@score Any ideas about what is happening would be appreciated, Thanks Chris Rimmer 67 Bricks
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