Hi,
I think your issue is that you are also applying the edge n-gram filter at
search time. So "happy" is translated to ("ha" OR "hap" OR "happ" OR
"happy"). You need to configure your mappings with a search analyzer[1]
which is the same analyzer but without the edge-ngram filter (so just
keyword and lowercase).
On a side note, you would benefit from putting the lowercase filter in
front of your n-gram filter. This way, the lowercasing would be done only
once.
[1]
http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/mapping-core-types.html#string
On Mon, Apr 28, 2014 at 10:50 AM, cyrilforce <[email protected]> wrote:
> Hi All,
>
> I am trying to use *edge-ngram filter *to achieve auto-completion
> behaviour. However when i run the following query :
>
> {
> "from" : "0",
> "size" : "20",
> "explain" : true,
>
> "query" : {
> *"multi_match": {*
> * "query": "happy",*
> * "fields": [ "DISPLAY_NAME.NAME <http://DISPLAY_NAME.NAME>"]*
> * }*
> },
> "sort" : [{
> "_score" : { "order" : "desc"}}]
> }
>
> It returns me documents :
>
> https://gist.github.com/cheehoo/11365794
>
>
> May i know how can i achieve the behaviour when i search "*happy*" then
> is should return me following result instead :
>
> *1)Happy*
> *2)Happy birthday*
> *3)Happy valentine*
>
>
> The analzyer configure :
>
> "analysis" : {
> "analyzer" : {
> "edge_ngram_keyword_lowercase_analyzer" : {
> "tokenizer" : "keyword",
> "filter" : ["my_edge_ngram_filter","lowercase"]
> }
> },
> "filter" : {
> "my_edge_ngram_filter" : {
> "type" : "edgeNGram",
> "min_gram" : "2",
> "max_gram" : "30"
>
> }
> }
> }
>
>
> The mapping :
> https://gist.github.com/cheehoo/11365917
>
> Thanks.
>
>
>
>
>
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