On Thu, Feb 11, 2010 at 6:56 PM, Richard Huxton <d...@archonet.com> wrote:
> On 05/02/10 15:48, Moe wrote: > >> I am trying to figure out how I can introduce full text search "tips"... >> tips meaning, like if you start typing Mer .. >> then a box with a couple of words underneath comes up, with *Mercedes, >> Mercury *and so on :P >> >> I am thinking that the word suggestions needs to come from the already >> existing tsearch2 index. >> Words that are frequent in the index could be ranked higher as a search >> tip. >> > > This could get expensive if you have a large index. > You might want to summarize down to a separate (word,frequency) table. > Particularly if you don't want stemming to interfere with your suggestions. > Stemming is ok. That's fine. How would this normally be implemented? Should I go through my text word by word myself, or the already existing index and copy over to a new table? Not sure how this would be managable. Every change to something would require a word count down, and then a word up after. > See the manuals (full text search) for details on prefix searches - > introduced in 8.4 if you really want to go the tsearch route. > I'll look into that. -- > Richard Huxton > Archonet Ltd >
