It's answered on the wiki site: "TSTLookup - ternary tree based representation, capable of immediate data structure updates"
Although the EdgeNGram technique is probably more widely adopted, eg, it's closer to what Google has implemented. http://www.lucidimagination.com/blog/2009/09/08/auto-suggest-from-popular-queries-using-edgengrams/ On Thu, Apr 28, 2011 at 9:37 PM, Andy <angelf...@yahoo.com> wrote: > I'm interested in using Suggester (http://wiki.apache.org/solr/Suggester) for > auto-complete on the field "Document Title". > > Does Suggester (either FST, TST or Jaspell) support incremental updates? Say > I want to add a new document title to the Suggester, or to change the weight > of an existing document title, would I need to rebuild the entire tree for > every update? > > Also, can the Suggester be sharded? If the size of the tree gets bigger than > the RAM size, is it possible to shard the Suggester across multiple machines? > > Thanks > Andy >