From 2c658d882a5ca43c107c26396b09f11ad6e69f9b Mon Sep 17 00:00:00 2001 From: Fridolyn SOMERS Date: Thu, 17 Oct 2013 16:20:49 +0200 Subject: [PATCH] Bug 11069: increase title ranking in relevance when using QueryWeightFields When using QueryWeightFields to add ranking on a search without index, the search actually uses: - rank 1 : Title-cover,ext : exact title-cover - rank 2 : ti,ext : exact title - rank 3 : Title-cover,phr : phrase title-cover - rank >7 : queries without index This relevance sets title as phrase in priority and then any index. This patch adds title as words list before search on any index, so that records with all searched terms in title, even not well ordered, are more relevant. Test plan : - Enable QueryWeightFields syspref - Perform a search, with sort by relevance, with two words ofen contained in title, but never one near the other. For example: 'History France' => Records with both words in title are first. For example: "Histoire de France" and "La France : 100 ans d'histoire" Signed-off-by: Jesse Maseto Signed-off-by: Katrin Fischer Relevance ranking and field weighting are hard to test, as many MARC fields are indexed into the used indexes. If we had an index that only indexed 245$a/200$a the effect might be more visible. I found no regressions by this patch, change reads logical. Signed-off-by: Galen Charlton --- C4/Search.pm | 1 + 1 file changed, 1 insertion(+) diff --git a/C4/Search.pm b/C4/Search.pm index 3ca722c843..b8cda0bb18 100644 --- a/C4/Search.pm +++ b/C4/Search.pm @@ -859,6 +859,7 @@ sub _build_weighted_query { "Title-cover,ext,r1=\"$operand\""; # exact title-cover $weighted_query .= " or ti,ext,r2=\"$operand\""; # exact title $weighted_query .= " or Title-cover,phr,r3=\"$operand\""; # phrase title + $weighted_query .= " or ti,wrdl,r4=\"$operand\""; # words in title #$weighted_query .= " or any,ext,r4=$operand"; # exact any #$weighted_query .=" or kw,wrdl,r5=\"$operand\""; # word list any $weighted_query .= " or wrdl,fuzzy,r8=\"$operand\"" -- 2.39.5