# Stemmer not working \[ES 6.7.1\]

**URL:** <https://discuss.elastic.co/t/stemmer-not-working-es-6-7-1/175881>\
**Category:** Elasticsearch\
**Created:** [April 8, 2019, 4:07pm UTC](https://discuss.elastic.co/t/stemmer-not-working-es-6-7-1/175881 "2019-04-08T16:07:15Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![Matteo\_Pietro\_Peru](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/matteo_pietro_peru/32/43682_2.png) [@Matteo\_Pietro\_Peru](https://discuss.elastic.co/u/Matteo_Pietro_Peru)\
**Post date:** [April 8, 2019, 4:07pm UTC](https://discuss.elastic.co/t/stemmer-not-working-es-6-7-1/175881/1 "2019-04-08T16:07:15Z")

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Hi everybody, i'have issues using stemmer,  
following the guidelines at link  
[https://www.elastic.co/guide/en/elasticsearch/reference/6.7/mixing-exact-search-with-stemming.html](https://www.elastic.co/guide/en/elasticsearch/reference/6.7/mixing-exact-search-with-stemming.html)  
I created the following index (partial mapping for body limitations)  
{  
"settings":{  
"analysis":{  
"analyzer":{  
"italian\_exact":{  
"tokenizer":"standard",  
"filter":[  
"lowercase"  
]  
},  
"space\_analyzer":{  
"type":"custom",  
"tokenizer":"keyword",  
"char\_filter":[  
],  
"filter":[  
"whitespace\_normalization",  
"trim"  
]  
}  
},  
"filter":{  
"whitespace\_normalization":{  
"type":"pattern\_replace",  
"pattern":"\s+",  
"replacement":" "  
}  
}  
}  
},  
"mappings":{  
"news":{  
"properties":{  
"timestamp":{  
"type":"date",  
"format":"strict\_date\_optional\_time||epoch\_millis"  
},  
"bodyText":{  
"type":"text",  
"analyzer":"italian",  
"fields":{  
"exact":{  
"type":"text",  
"analyzer":"italian\_exact"  
},  
"raw":{  
"type":"keyword",  
"ignore\_above":256  
},  
"title":{  
"type":"text",  
"analyzer":"italian",  
"fields":{  
"exact":{  
"type":"text",  
"analyzer":"italian\_exact"  
},  
"raw":{  
"type":"keyword",  
"ignore\_above":256  
}  
}  
}  
}  
}  
}  
}  
}  
}  
(i'm refreshin' our old queries so I'm trying not to completely deconstruct them) it seems the difference between exact or not don't exists.  
{  
"size": 100,  
"from": 0,  
"query": {  
"bool": {  
"must": {  
"query\_string": {  
"query": "fisco", {/\* Or ""fisco"" when i search exact \*/}  
"fields": [  
"title"  
],  
"quote\_field\_suffix": ".exact"  
}  
},  
"filter": {  
"bool": {  
"must": [  
{  
"range": {  
"timestamp": {  
"lt": "2019-04-08T23:59:59"  
}  
}  
},  
{  
"term": {  
"isFirst": true  
}  
}  
],  
"must\_not": [  
{  
"exists": {  
"field": "Previgenza"  
}  
}  
]  
}  
}  
}  
},  
"sort": {  
"datejs": {  
"order": "desc"  
}  
},  
"highlight": {  
"pre\_tags": [  
"\< strong\>\< em\>"  
],  
"post\_tags": [  
" "  
]  
}  
}  
But the result returned is the same.  
I think the error is in the search query, but I could have set the index wrong too...  
anyone can help me?  
thank you in advance!

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<div class="post-metadata">

**Author:** ![Matteo\_Pietro\_Peru](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/matteo_pietro_peru/32/43682_2.png) [@Matteo\_Pietro\_Peru](https://discuss.elastic.co/u/Matteo_Pietro_Peru)\
**Post date:** [April 9, 2019, 10:30am UTC](https://discuss.elastic.co/t/stemmer-not-working-es-6-7-1/175881/2 "2019-04-09T10:30:32Z")

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Sorry, it seems the stemmer is working, but seems don't find the root of some words (italian)

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [May 7, 2019, 10:30am UTC](https://discuss.elastic.co/t/stemmer-not-working-es-6-7-1/175881/3 "2019-05-07T10:30:44Z")

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