Hi there,
I need to search in multiple fields where I do not know field names in
advance, so I can't use multi_match syntax. So I found, that _all field
aggregates all fields set to be included in all in mapping. Unfortunately
it returns different result set, that multi_match. Here is complete test
set for Sense.
What I'm doing wrong?
thank you for any response.
Delete the my_index index
DELETE /my_index
Create my_index with a single primary shard
and set up the autocomplete analyzer using
edge ngrams
PUT /my_index
{
"settings": {
"number_of_shards": 1,
"analysis": {
"filter": {
"autocomplete_filter": {
"type": "edge_ngram",
"min_gram": 1,
"max_gram": 20
}
},
"analyzer": {
"autocomplete": {
"type": "custom",
"tokenizer": "standard",
"filter": [
"lowercase",
"autocomplete_filter"
]
}
}
}
}
}
Map the name and desc field to use the autocomplete analyzer
PUT /my_index/_mapping/mytype
{
"mytype": {
"properties": {
"name": {
"type": "string",
"analyzer": "autocomplete"
},
"desc": {
"type": "string",
"analyzer": "autocomplete"
}
}
}
}
Index some example docs
POST /my_index/mytype/_bulk
{"index":{"_id":1}}
{"name":"Brown foxes","desc":"runs fast"}
{"index":{"_id":2}}
{"name":"Yellow furballs","desc":"falls fast"}
Use the "standard" analyzer on the query string
instead of the "autocomplete" analyzer
GET /my_index/mytype/_search
{
"query": {
"multi_match": {
"query": "brown fo",
"analyzer": "standard",
"fields": ["name", "desc"]
}
}
}
GET /my_index/mytype/_search
{
"query": {
"match": {
"name": {
"query": "brown fo",
"analyzer": "standard"
}
}
}
}
Update the mapping for the name field
to use the "autocomplete" analyzer at index time
and the "standard" analyzer at search time
PUT /my_index/mytype/_mapping
{
"mytype": {
"properties": {
"name": {
"type": "string",
"index_analyzer": "autocomplete",
"search_analyzer": "standard",
"include_in_all": true
},
"desc": {
"type": "string",
"index_analyzer": "autocomplete",
"search_analyzer": "standard",
"include_in_all": true
}
}
}
}
Make sure that the mapping is ok
GET /my_index/mytype/_mapping
Search in all fields via multi_match - text in name field found and
result returned
GET /my_index/mytype/_search
{
"query": {
"multi_match": {
"query": "brown fo",
"fields": ["name", "desc"]
}
}
}
Search in all fields via _all field - text in name field found and result
returned
GET /my_index/mytype/_search
{
"query": {
"match": {
"_all": "brown fo"
}
}
}
Search in all fields via multi_match - text in desc field found and
results (both) returned
GET /my_index/mytype/_search
{
"query": {
"multi_match": {
"query": "fa",
"fields": ["name", "desc"]
}
}
}
Search in all fields via _all field - text in desc field is, but no
result returned. multi_match and match in _all field does not return the
same value. How to search in all fields, when I do not know field names?
GET /my_index/mytype/_search
{
"query": {
"match": {
"_all": "fa"
}
}
}
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