map and query on multidimensional array in elasticsearch - multidimensional-array

Question

I'm very newbie to ElasticSearch. This is how my data looks like.how can I map and query on the following data.
[parameters] => Array
(
[0] => Array
(
[param_id] => "Browser"
[param_values] => Array
(
[0] => "Firefox"
)
)
[1] => Array
(
[param_id] => "BrowserVersion"
[param_values] => Array
(
[0] => "39"
)
)
[2] => Array
(
[param_id] => "OS"
[param_values] => Array
(
[0] => "Windows"
)
)
[3] => Array
(
[param_id] => "Softwares"
[param_values] => Array
(
[0] => "Java"
[1] => "Oracle"
[2] => "PHP"
)
)
)
I have to get the results of the following query.
The Users which are using "OS" as "Windows" and "Softwares" as "Java". How to map these data and query?
Below is the Mapping JSON:
{
"response": {
"properties": {
"profile_id" : {"type" : "long"},
"timestamp" : {"type" : "string"},
"parameters" : {
"type": "nested",
"properties":{
"param_id":{"type": "string"},
"param_values": {
"type": "string"
}
}
}
}
}
}
Below is my Query JSON:
{ "query": {
"filtered": {
"query": {
"match_all": {}
},
"filter": {
"bool": {
"must": [
{
"nested": {
"path": "parameters",
"query": {
"bool": {
"must": [
{
"term": {
"parameters.param_id": "Softwares"
}
},
{
"term": {
"parameters.param_values": "Java"
}
}
]
}
}
}
}
]
}
}
} }}

Answer 1

So let's start off by creating the index using
curl -XPUT localhost:9200/responses -d '{
"mappings": {
"response": {
"properties": {
"profile_id": {
"type": "long"
},
"timestamp": {
"type": "string"
},
"parameters": {
"type": "nested",
"properties": {
"param_id": {
"type": "string"
},
"param_values": {
"type": "string"
}
}
}
}
}
}
}'
And then we index your sample document:
curl -XPUT localhost:9200/responses/response/1 -d '{
"profile_id": 1,
"timestamp": "2015-01-01T00:00:00",
"parameters": [
{
"param_id": "Browser",
"param_values": [
"Firefox"
]
},
{
"param_id": "BrowserVersion",
"param_values": [
"39"
]
},
{
"param_id": "OS",
"param_values": [
"Windows"
]
},
{
"param_id": "Softwares",
"param_values": [
"Java",
"Oracle",
"PHP"
]
}
]
}'
You've started off very well and your query is almost correct. If you want to query for users who are using "Windows" as "OS" and "Java" as "Softwares", you already have the constraint on the latter, now you just need one more contraint for the former (i.e. OS=Windows)
{
"size": 30,
"query": {
"filtered": {
"filter": {
"bool": {
"must": [
{
"nested": {
"path": "parameters",
"query": {
"bool": {
"must": [
{
"term": {
"parameters.param_id": "os"
}
},
{
"term": {
"parameters.param_values": "windows"
}
}
]
}
}
}
},
{
"nested": {
"path": "parameters",
"query": {
"bool": {
"must": [
{
"term": {
"parameters.param_id": "softwares"
}
},
{
"term": {
"parameters.param_values": "java"
}
}
]
}
}
}
}
]
}
}
}
}
}