X-Git-Url: http://jsfdemo.indexdata.com/?a=blobdiff_plain;f=NEWS;h=1a5aac64bcf1a7798aa7491249082862aa52c247;hb=0bb0ee0e00d750808e228b991c78cb4838bc989d;hp=da7feb83b82337a265df1e1cd0736a6668818738;hpb=8965288d1e3a084af1eba23731ddb0d2d39116f2;p=pazpar2-moved-to-github.git diff --git a/NEWS b/NEWS index da7feb8..1a5aac6 100644 --- a/NEWS +++ b/NEWS @@ -1,12 +1,84 @@ +--- 1.6.24 2013/01/18 + +New merge attribute type: 'first', which takes all metadata fields +from first target that returns the particular field. + +--- 1.6.23 2013/01/02 + +Extend info command with hostname and YAZ SHA1 +Indent results for both command stat and info. + +Allow limit on merged content. The new configuration metadata +element, limitcluster, configures that a metadata element (name) be used +as limit name for search. Applies to the whole service (ie all targets), +unlike pz:limitmap which is configured per-target (database). + +New feature: limitmap local:* matches against all metadata fields. + +Allow repeated list in limitmap spec . Separated by comma. For +example: value="local:title,rpn:@attr 1=4". + +New element in bytarget response. Holds diagnostic message +of code (say 'Unsupported Use Attribute' for Bib-1 114). + +Improved logging for record ingestion failures. + +Avoid using struct icu_chain in non-YAZ_HAVE_ICU mode. In the rare case, +when YAZ is compiled without ICU support. + +--- 1.6.22 2012/10/11 + +Requires YAZ-4.2.40 to support native solr support. + +Fix and improve logic handling whether or not to re-do search on sort +order changes. A sort order with change in ascending/descending only +whould not trigger a new search, which is required for targets with +native sorting capabilities. Each client is now checked if instructions +(sortmap) exist for native sorting and only client that does requires +it is researched. Other clients is just re-ingesting the records, +they already have. The resultset is now cleared if any researching +is done. + +Connection sharing between session has broken since version 1.6.8 with +introduction of logic that would minimize searching if pazpar2 could +detect this based on same query and limits and partly sort order. +This could lead to segementations violations. + +Added a chapter in the manaul about relevance ranking. + +--- 1.6.21 2012/09/24 + +Rank tweak: follow=number will increase mult by number if two terms +occur next to each other; number-1 if they are one term apart , .. 0 +if they are number a part (all in order). Default is 0 (following +terms has no effect). + +Rank tweak: lead=k will divide mult by 1 + log2(1+k*l) where k is +value given by lead and l is length from beginning of field where +term occurs (l=0 for first term, l=1 for second term, ..). Default +value of k is 0.0. + +Rank tweak: length=strategy. length="linear" if mult is to be divided +by length (existing, default behavior), length="log" if mult is to be +divided by log2(1+length), length="none" if mult is not to be affected +by length. + --- 1.6.20 2012/09/21 -Rank algorithm details may be printed as part of show reseponse in +Rank algorithm details may be printed as part of show response in element .. This is only printed if is used in service. Record as returned by show/record command have a minimal indentation which makes things human-readable. +New configuration of default sorting criteria (sort-default) in +service definition. If no criteria is defined it will be as before +'relevance'. + +Search command now supports sort parameter just as the show command. +If no parameter is give, it will use the service sort-default value. + --- 1.6.19 2012/09/18 Rank algorithm skips strings that gets normalized to empty string.