I am trying to setup most efficient way to build an OR without having a scoring, since I want to order my results by business values afterwards.
Unfortunately i don't get it done. :(
What I need:
COLOR=X AND ( title = Y OR description = Z)
What I tried (but it is malformed):
{
"query": {
"bool": {
"filter": [
{
"term": {
"colors.source_name": "braun"
}
},
{
"should": [
{
"term": {
"title": "sofa"
}
},
{
"term": {
"description": "sofa"
}
}
]
}
]
}
}
What I also tried, but it also provided results without "gartenlounge", and especially with scoring:
{
"query": {
"bool": {
"filter": [
{
"term": {
"colors.source_name": "braun"
}
}
],
"should": [
{
"term": {
"title": "sofa"
}
},
{
"term": {
"description": "sofa"
}
}
]
}
}
The following query should work for you:
{
"query": {
"bool": {
"filter": [
{"term": {
"colors.source_name": "braun"
}},
{"bool": {
"should": [
{"term": {"title": "sofa"}},
{"term": {"description": "sofa"}}
]
}}
]
}
}
}
You can nest a bool query inside the filter context, and should is only valid from within a bool clause.
It's an old reference sir, but it still checks out:
https://www.elastic.co/guide/en/elasticsearch/guide/current/combining-filters.html
Related
I have the following ES query :
{
"query": {
"bool": {
"should": [
{
"constant_score": {
"boost": 5,
"filter": {
"bool": {
"must": [
{
"ids": {
"values": [
"winnerAthlete-A"
]
}
},
{
"dis_max": {
"queries": [
{
"bool": {
"filter": {
"term": {
"isAthlete": true
}
}
}
},
{
"bool": {
"filter": {
"term": {
"isWinner": true
}
}
}
}
]
}
}
]
}
}
}
},
{
"constant_score": {
"boost": 4,
"filter": {
"bool": {
"must": [
{
"ids": {
"values": [
"winnerAthlete-B"
]
}
},
{
"dis_max": {
"queries": [
{
"bool": {
"filter": {
"term": {
"isAthlete": true
}
}
}
},
{
"bool": {
"filter": {
"term": {
"isWinner": true
}
}
}
}
]
}
}
]
}
}
}
}
]
}
}
}
It does return the result I expect : the 2 documents winnerAthlete-A and winnerAthlete-B, assigning a score of 5.0 to winnerAthlete-A and a score of 4.0 to winnerAthlete-B.
Now, when I turn the should on the third line of the query into a must, the query does not match any document whereas I would expect the exact same result. I can't wrap my head around why. I have tried using the ES _explain keyword to understand why this query doesn't match when using must but it didn't help me.
Any idea why this query rewritten with a must does not return anything whereas the should version does return the expected result ?
Should works like "OR" . It will return a document which matches any of clauses.
Must works like "AND" . Document must satisfy both clauses.
Your query is not returning any result because there is no single document which has ids as winnerAthlete-A as well as winnerAthlete-B
Was wondering if there's a big difference in performance between these two queries which get the same results
{
"query": {
"bool": {
"must": [
"bool": {
"must": [
{
"term": {
"color": "red"
}
},
{
"term": {
"fruit": "strawberry"
}
}
]
}
}
}
}
}
and
{
"query": {
"bool": {
"must": [
{
"term": {
"color": "red"
}
},
{
"term": {
"fruit": "strawberry"
}
}
]
}
}
}
The execution plan of both queries is exactly the same. Add ?explain=true to your URL so you can see how both queries are "explained".
The performance improvement would come from using filter instead of must provided you don't need scoring but only yes/no filtering, i.e.:
{
"query": {
"bool": {
"filter": [ <-- change this
{
"term": {
"color": "red"
}
},
{
"term": {
"fruit": "strawberry"
}
}
]
}
}
}
I want to create the equivalent of the following query -
(city = 'New York' AND state = 'NY') AND ((businessName='Java' and businessName='Shop') OR (category='Java' and category = 'Shop'))
I tried different combinations of bool queries using must and should but nothing seems to be working. Can this be done?
How about something like this:
{
"query": {
"match_all": {}
},
"filter": {
"bool": {
"must": [
{
"term": {
"city": "New york"
}
},
{
"term": {
"state": "NY"
}
},
{
"bool": {
"should": [
{
"bool": {
"must": [
{
"term": {
"businessName": "Java"
}
},
{
"term": {
"businessName": "Shop"
}
}
]
}
},
{
"bool": {
"must": [
{
"term": {
"category": "Java"
}
},
{
"term": {
"category": "Shop"
}
}
]
}
}
]
}
}
]
}
}
}
I'm having trouble querying in elastic search. I'm searching over a specific set of data defined by the state_id, and then wanting to return all the states which do not have either one of the cities defined by the identifiers below.
The query below returns 18 results with just "city_id_1", and 0 results with "city_id_2". With both though, I return 0 results (since "city_id_2" is on every state record). What I want to do is still return the 18 results, but query over both cities.
I feel like my query should be working, and basically doing a NOT (A or B) style query, equivalent to NOT A and NOT B, but basically the 0 results seems to be overriding the 18.
Is there a way I can change my query to get the results I want, or is this something elasticsearch cannot do?
{
"query": {
"bool": {
"must": [
{ "terms": { "state_id": ["4ca16f80-da79-11e5-9874-64006a4f57cb"]}}
],
"must_not": [
{
"nested": {
"path": "cities",
"query": {
"bool": {
"should": [
{"term": { "cities.identifier": "city_id_1"}},
{"term": { "cities.identifier": "city_id_2"}}
]
}
}
}
}
]
}
},
"size": 10
}
Try this on for size. Elasticsearch is silly. The filter needs to be in each of the nested queries.
{
"query": {
"bool": {
"should": [
{
"query": {
"bool": {
"must_not": [
{
"nested": {
"path": "cities",
"query": {
"term": { "cities.identifier": "city_id_1"}
}
}
}
],
"filter":[
{
"term":{
"state_id":"4ca16f80-da79-11e5-9874-64006a4f57cb"
}
}
]
}
}
},
{
"query": {
"bool": {
"must_not": [
{
"nested": {
"path": "cities",
"query": {
"term": { "cities.identifier": "city_id_2"}
}
}
}
],
"filter":[
{
"term":{
"state_id":"4ca16f80-da79-11e5-9874-64006a4f57cb"
}
}
]
}
}
}
]
}
},
"size": 10
}
If you want NOT A AND NOT B behaviour you need to make a little change
{
"query": {
"bool": {
"must": [
{ "terms": { "state_id": ["4ca16f80-da79-11e5-9874-64006a4f57cb"]}}
],
"must_not": [
{
"nested": {
"path": "cities",
"query": {
"bool": {
"must": [ ====> Use must instead of should
{"term": { "cities.identifier": "city_id_1"}},
{"term": { "cities.identifier": "city_id_2"}}
]
}
}
}
}
]
}
},
"size": 10
}
This will exclude those record which will have both city_id_1 and city_id_2.
As per my understanding, you are looking our for NOT A or NOT B kind of a clause. Please check the query below and see if it fits your requirement
{
"query": {
"bool": {
"must": [
{ "terms": { "state_id": ["4ca16f80-da79-11e5-9874-64006a4f57cb"]}}
],
"should": [
{
"nested": {
"path": "cities",
"query": {
"bool": {
"must_not": [
{"term": { "cities.identifier": "city_id_1"}}
]
}
}
}
},
{
"nested": {
"path": "cities",
"query": {
"bool": {
"must_not": [
{"term": { "cities.identifier": "city_id_2"}}
]
}
}
}
}
],
"minimum_number_should_match": 1
}
},
"size": 10
}
I have a simple JSON query for Elasticsearch that looks like this:
"query": {
"bool": {
"must": { "match": { "id": "1" }} ,
"must": { "match": { "tags.name": "a1"}}
}
}
How can I execute the second 'must' criteria ONLY if the value ('a1' in this case) is not empty?
You can achieve it using the following -
{
"query": {
"bool": {
"must": [
{
"match": {
"id": "1"
}
},
{
"bool": {
"should": [
{
"missing": {
"field": "tags.name"
}
},
{
"match": {
"tags.name": "a1"
}
}
]
}
}
]
}
}
}
I don't think "missing" can be used in the latest versions of elasticsearch.
But one can use Conditional Clauses instead.
https://www.elastic.co/guide/en/elasticsearch/reference/6.3/search-template.html#_conditional_clauses