Elasticsearch replacing cross_fields with combined field and fuzzy - elasticsearch

Question

We have an index which was previously searching a few fields such as this:
"query":{
"bool":{
"filter":[
{
"term":{
"eventvisibility":"public"
}
}
],
"should":[
{
"multi_match":{
"query":"keyword",
"fields":[
"eventname",
"venue.name",
"venue.town"
],
"type":"cross_fields",
"minimum_should_match":"3<80%"
}
},
{
"match":{
"eventdescshort":{
"query":"keyword",
"minimum_should_match":"2<80%"
}
}
}
],
"minimum_should_match":1
}
}
This works, but often fails due to spelling mistakes, etc with letters left off the keyword or transposed.
So I was hoping to implement fuzzy searching, As this doesn't work with cross_fields, I created a new field in the index:
"mappings": {
"event": {
"properties": {
"basic_search": {
"type": "text",
"analyzer": "nameanalyzer"
},
"eventname":{
"type": "text",
"copy_to": "basic_search" ,
"fields": {
"raw": {
"type": "keyword"
}
},
"analyzer": "nameanalyzer"
},
"venue": {
"properties": {
"name": {
"type": "text",
"copy_to": "basic_search" ,
"fields": {
"raw": {
"type": "keyword"
}
},
"analyzer": "nameanalyzer"
},
...snip (all fields previosouly in cross_fields now have copy_to: basic_search) ...
}
And our analyzer is as follows:
"nameanalyzer": {
"filter": [
"lowercase",
"stop",
"english_possessive_stemmer",
"english_minimal_stemmer",
"synonym",
"asciifolding",
"word_delimiter"
],
"char_filter": "html_strip",
"type": "custom",
"tokenizer": "standard"
}
I've now run a test search, as follows:
{
"query": {
"fuzzy": {
"basic_search": {
"value": "carers fair"
}
}
}
However, this is not giving me any matches at all.
I just get:
"type": "MatchNoDocsQuery",
"description": "MatchNoDocsQuery(\"empty BooleanQuery\")",
I know I can't see the contents of the basic_search field in _source, so how can I debug and know why this isn't matching?

Answer 1

Fuzzy query don't analyze text before searching. Usage of the same should be avoided.
Excerpt from ES Doc below :
fuzzy query: The elasticsearch fuzzy query type should generally be avoided. Acts much like a term query. Does not analyze the query text first.
Please try below query:
{
"query":{
"match":{
"basic_search":{
"query":"carers fair",
"fuzziness":"AUTO"
}
}
}