> Could you give an example? > E.g. lets say I have a field 'title' and a field 'fulltext' > and my > search term is 'solr'. What would be the right set of > parameters to get > back the whole title-field but only a sniplet of 50 words > (or three > sentences or whatever the unit) from the fulltext field.
&q=solr&hl=true&hl.fl=title,fulltext&f.title.hl.fragsize=0 should do it. You can increase the size of snippet (in terms of characters) generated from fulltext by increasing hl.fragsize value.