[koha-commits] main Koha release repository branch 3.14.x updated. v3.14.09-74-g37f8245

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commit 37f8245894ed7858da7aeb580b866fb624536f50
Author: Fridolyn SOMERS <fridolyn.somers at biblibre.com>
Date:   Thu Oct 17 16:20:49 2013 +0200

    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 <jesse at bywatersolutions.com>
    Signed-off-by: Katrin Fischer <Katrin.Fischer.83 at web.de>
    
    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 <gmc at esilibrary.com>
    (cherry picked from commit 2c658d882a5ca43c107c26396b09f11ad6e69f9b)
    Signed-off-by: Fridolin Somers <fridolin.somers at biblibre.com>

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Summary of changes:
 C4/Search.pm |    1 +
 1 file changed, 1 insertion(+)


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