I have two indices:
First, questions, have nested field answers. Second, articles do not have this field.
I try search by multi indices:
{
"index": "questions, articles",
"body":{
"query":{
"bool":{
"must":{
"nested":{
"path": "answer",
...
}
}
}
}
}
}
and get error "query_parsing_exception: [nested] failed to find nested object under path [answer]"
How I can search without errors, when one index have nested field, but another does not have?
I think you need to use the indices query and to use a different query for each index. Something like this:
GET /questions,articles/_search
{
"query": {
"bool": {
"must": [
{
"bool": {
"should": [
{
"indices": {
"indices": [
"questions"
],
"query": {
"nested": {
"path": "answer",
"query": {
"term": {
"text": "bla"
}
}
}
}
}
},
{
"match_all": {}
}
]
}
},
{
"term": {
"some_common_field": {
"value": "whatever"
}
}
}
]
}
}
}
Related
Hello i want to do something like that with elasticsearch enter image description here
I already have some knowledge in elasticsearch but I can't understand how can I do this , multiple search
You can use a combination of bool/must/should clause to combine multiple conditions
{
"query": {
"bool": {
"should": [
{
"multi_match": {
"query": "tag"
}
},
{
"match": {
"answers": 0
}
},
{
"match": {
"user": 1234
}
},
{
"multi_match": {
"query": "words here",
"type": "phrase"
}
},
{
"match": {
"score": 3
}
},
{
"match": {
"isaccepted": "yes"
}
}
]
}
}
}
If you want to search on multiple fields then you can use multi_match query
If no fields are provided, the multi_match query defaults to the
index.query.default_field index settings, which in turn defaults to *.
This extracts all fields in the mapping that are eligible to term queries and filters the metadata fields. All extracted fields are then
combined to build a query.
Adding a working example with index data, search query, and search result
Index Data:
{
"answers": 0,
"isaccepted": "no"
}
{
"answers": 0,
"isaccepted": "yes"
}
Search Query:
{
"query": {
"multi_match" : {
"query" : "yes"
}
}
}
Search Result:
"hits": [
{
"_index": "67542669",
"_type": "_doc",
"_id": "1",
"_score": 0.2876821,
"_source": {
"answers": 0,
"isaccepted": "yes"
}
}
]
I working on elastic search and I have 1K phone numbers when I pass this phone numbers array to elastic search to search users through phone numbers it gives me exception
Failed to JSON encode /var/app/current/vendor/elasticsearch/elasticsearch/src/Elasticsearch/Serializers/SmartSerializer.php
Below is my Elasticsearch client initializing
$client = ClientBuilder::create()->setHosts([$host])->build();
And my working query in Elasticsearch
{
"_source": [
"id"
],
"query": {
"bool": {
"must": [
{
"term": {
"type": "user"
}
},
{
"bool": {
"should": [
{
"prefix": {
"phone": {
"value": "923047698099"
}
}
},
{
"prefix": {
"phone": {
"value": "92313730320"
}
}
},
.
.
.
]
}
}
],
"must_not": [
{
"has_child": {
"type": "blocked",
"query": {
"term": {
"user_id": "u-2"
}
}
}
},
{
"has_child": {
"type": "block",
"query": {
"term": {
"user_id": "u-2"
}
}
}
},
{
"term": {
"db_id": 2
}
}
]
}
}
}
I don't know that where I doing mistake. Either at client initializing or writing elasticserch query. I searched this issue but not usefull solution found or might be I did't understand clearly. But still I am stucked on this issue that how to solve this problem. Suggest any usefull link or solution.
Thanks
I have this query
{
"bool": {
"should": [
{
"multi_match": {
"query": "LAS VEGAS, HENDERSON",
"fields": ["city"]
}
}
]
}
}
this returns:
"city": "LAS VEGAS",
"city": "LAS CRUCES",
"city": "HENDERSON",
Note the LAS CRUCES result. I don't want it.
One way would be to have it written like this:
"bool": {
"should": [
{
"match": {
"city": {
"query": "LAS VEGAS",
"operator": "and"
}
}
},
{
"match": {
"city": {
"query": "HENDERSON",
"operator": "and"
}
}
}
}
But I prefer the first approach, if it can be done.
Any ideas?
You can use query_string query as shown below:
GET /_search
{
"query": {
"query_string" : {
"fields" : ["city"],
"query" : "\"LAS VEGAS\" OR \"HENDERSON\""
}
}
}
You need to enclose the values in quotes to search for exact phrase.
If you are using city field for searching exact matches then you should consider changing it's mapping type from text to keyword. It will fetch you good performance.
If your city field is of type keyword then you can achieve the same results using terms query as shown below:
GET /_search
{
"query": {
"constant_score" : {
"filter" : {
"terms" : { "city" : ["LAS VEGAS", "HENDERSON"]}
}
}
}
}
Hope this helps!
multi_match accepts the operator flag, which can be set to or.
{
"bool": {
"should": [
{
"multi_match": {
"query": "LAS VEGAS, HENDERSON",
"fields": ["city"],
"operator": "or"
}
}
]
}
}
I have implemented parent child relation ship in elasticsearch, parent type name is participant_tests and its child type name is participant_test_question_answers, I have some search conditions for parent type as bellow:
query": {
"bool":{
"should":[
{
"range":{
"created_at":{
"gte":"2016-01-01",
"lte":"2016-05-11",
"format":"YYYY-MM-dd"
}
}
},
{
"terms":{
"created_by.id":["1000001"]
}
},
{
"multi_match":{
"query":"test human time",
"fields":[
"course_tests.course_id.course_no",
"participant_test_questions.answer_text",
"participants.first_name",
"participants.last_name",
"participants.promote_unique_user_id","result"
],
"operator":"OR"
}
}
]
}
}
Above query return result but if I want to check has_child no result returned.
I have added this lines after bool class.
"has_child": {
"type": "participant_test_question_answers",
"min_children": 1,
"query": {
"match_all": {}
}
}
Try this query:
{
"query": {
"bool": {
"should": [
{
"range": {
"created_at": {
"gte": "2016-01-01",
"lte": "2016-05-11",
"format": "YYYY-MM-dd"
}
}
},
{
"terms": {
"created_by.id": [
"1000001"
]
}
},
{
"multi_match": {
"query": "test human time",
"fields": [
"course_tests.course_id.course_no",
"participant_test_questions.answer_text",
"participants.first_name",
"participants.last_name",
"participants.promote_unique_user_id",
"result"
],
"operator": "OR"
}
}
],
"must": [
{
"has_child": {
"type": "participant_test_question_answers",
"min_children": 1,
"query": {
"match_all": {}
}
}
}
]
}
}
}
{
"query": {
"custom_score": {
"query": {
"match": {
"xxx": {
"query": "foobar"
}
}
},
"filter": {
"and": [
{
"query": {
"match": {
"yyyy": {
"query": "barfoo"
}
}
}
}
]
}
},
"script": "_score * doc['_score']"
}
}
This gives error
[custom_score] query does not support [filter]
Then how to evaluate such query?
I would suggest you to look at your requirements regarding boosting, since your current script doesn't make much sense.
Also, have a look at the documentation for the elasticsearch query DSL. It provides either compound queries and simple ones, which you can combine together. As the error says, you can't put a filter inside a custom score query. You can either use a filtered query inside the custom score query:
{
"query": {
"custom_score": {
"query": {
"filtered" : {
"query" : {
"match": {
"xxx": {
"query": "foobar"
}
}
},
"filter" : {
"and": [
{
"query": {
"match": {
"yyyy": {
"query": "barfoo"
}
}
}
}
]
}
}
},
"script": "_score * doc['_score']"
}
}
}
or use a top level filter like this:
{
"query": {
"custom_score": {
"query": {
"match": {
"xxx": {
"query": "foobar"
}
}
},
"script": "_score * doc['_score']"
}
},
"filter": {
"and": [
{
"query": {
"match": {
"yyyy": {
"query": "barfoo"
}
}
}
}
]
}
}
The difference between the two options is that the top level filter is not considered if you make facets too in your search request, while if you put the filters within the query they are considered.
One other thing to look at: you don't need an and filter if you have only a single clause. Also, it usually doesn't make sense to put a full-text search within a filter, since filters are cacheable and given that full-text searches are free and pretty much unpredictable it would be a waste to cache them.