use slop with phrase_prefix
On Mon, Apr 27, 2015 at 5:58 PM, Kathy Cashel <kathleencas...@gmail.com>
wrote:
> My client wants a search that returns both prefix and exact matches per
> token. Most (but not all) of the text being searched is human names. The
> idea is that "jane smith" and "smith, j" and "j smit" will all return the
> same document, so I'm using tokens.
>
> The trick is that it needs to be an "and" search: all tokens in the search
> string must be present in the results. And the prefix query does not seem
> to offer this option. Edgengram would be a great answer, but the client
> wants results returned alphabetically - using no relevance at all - and the
> long tail on ngram searches makes the alpha sort unfeasible.
>
> So for now I'm using a simple keyword tokenizer (plus some custom
> analyzers) to index, and then splitting the search string on spaces to
> build queries like the below. It seems very awkward / cumbersome / brittle.
>
> All suggestions appreciated.
>
> {
> "query" : {
> "bool" : {
> "must" : [{
> "bool" : {
> "should" : [{
> "match" : {
> "text" : "j"
> }
> }, {
> "prefix" : {
> "text" : "j"
> }
> }
> ]
> }
> }, {
> "bool" : {
> "should" : [{
> "match" : {
> "text" : "smith"
> }
> }, {
> "prefix" : {
> "text" : "smith"
> }
> }
> ]
> }
> }
> ]
> }
> }
> }
>
>
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