Hi Arcadius, I think it is a feature. If no match terms found on hl.fl fields then it triggers hl.alternateField function, and if you set hl.maxAlternateFieldLength=[LENGTH], the highlighter extracts the first [LENGTH] characters of stored data of the hl.fl field. As this is the common feature of both highlighter and FVH, it doesn't take into account hl.bs.type (it is a special param for boundary scanner).
For now, implement boundary scanning in your client if you want. koji -- http://soleami.com/blog/starting-lab-work.html (12/09/15 0:13), Arcadius Ahouansou wrote:
Hello. I am using the fastVectorHighlighter in Solr3.5 to highight and truncate the summary of my results. The standard breakIterator is being used with hl.bs.type = WORD as per http://lucidworks.lucidimagination.com/display/solr/Highlighting Search is being performed on the document title and summary. In my edismax requesthandler, I have as default: <str name="hl.useFastVectorHighlighter">true</str> <str name="hl.fl">summary</str> <str name="f.summary.hl.alternateField">summary</str> A simplified query looks like this: /solr/search?q=help&hl=true&f.summary.hl.fragsize=250&f.summary.hl.maxAlternateFieldLength=250 So, I am truncating only the summary. 1- When a search term is found in the decription, everyting works well as expected and the summary is truncated and contains whole words only (the breakIterator is being applied properly) 2- However, when there is no match in the summary, then the f.summary.hl.alternateField quicks-in and the summary returned is often truncated in the middle of a word (i.e we may get "peo" instead of "people"). This lets me suppose that the breakIterator is not applied to f.summary.hl.alternateField. My question is: how to return full word truncation when summary is fetched from f.summary.hl.alternateField ? (i.e no match in summary) Or is there any other way I could get proper truncation when there is no match in the summary? Thank you very much. Arcadius
