Mark, thanks again, here is my answer:
what I used for this ... - regain 2.0.4 - http://regain.sourceforge.net/ - a desktop search engine based on lucene - luke 3.5.0 - http://code.google.com/p/luke/ - Lucene Index Toolbox - carrot2 - 3.8.0 - http://project.carrot2.org/download.html - document clustering workbench what I tried ... - having documents to index at location $doc_home - remove index directory - reindex documents - regain built new index in $regainhome/serchindex/index - search with regain - ok - using carrot2 document clustering workbench pointing to $regainhome/serchindex/index as input - ok - - moving $regainhome/serchindex/index to /somewhereonthedisk/index - regain can´t search any longer because of no more index - starting carrot2 clustering workbench and pointing to /somewhereonthedisk/index as input - ok because index contains absolute path values to indexed documents - - using luke one can see that index contains a field with name path_sort and value = $doc_home - using an editor one can see that files *.fdt and *.tii in $regainhome/serchindex/index contain absolut path to $doc_home - all path are starting with drive letters c:\...... - - what I want to get are relative path names of indexed documents in relation to index directory, because then index as well as indexed document can be anywhere - luke website says that there is a way to "reconstruct the original document fields, edit them and re-insert to the index " but I didn´t find it ... - - what you mention is a way to do exactly what I´m looking for. - "Then have an index-to-index writer to read from indexA, transform the data, then write to indexB" - and - "For item 2, Solr lets you update specific fields in a document. But in the background, it’s actually still doing a full reindex, but for any fields you don’t update it copies and reindexes them from the old copy" - but - sorry - I´m new as I mentioned - I don´t know how - do you perhaps mean this "https://cwiki.apache.org/confluence/display/solr/Updating+Parts+of+Documents";? - and: can this be done for all documents in the index? - but in any case I think I need path names without drive letters (with fixed positions of $doc_home and lucene index relative to each other -- View this message in context: http://lucene.472066.n3.nabble.com/relative-document-path-in-lucene-index-tp4129096p4129544.html Sent from the Lucene - General mailing list archive at Nabble.com.
