Elastic search aggregation with range query - elasticsearch

Question

I am working to build a ES query that satisfies the condition >= avg .
Here is an example:
GET /_search
{
"size" : 0,
"query" : {
"filtered": {
"filter": {
"range": {
"price": {
"gte": {
"aggs" : {
"single_avg_price": {
"avg" :{
"field" : "price"
}
}
}
}
}
}
}
}
}
}
I get the following error
"type": "query_parsing_exception",
"reason": "[range] query does not support [aggs]",
I wonder how do we use aggregated value with range query in Elastic query

Answer 1

You cannot embed aggregations inside a query. You need to first send an aggregation query to find out the average and then send a second range query using the obtained average value.
Query 1:
POST /_search
{
"size": 0,
"aggs": {
"single_avg_price": {
"avg": {
"field": "price"
}
}
}
}
Then you get the average price, say it was 12.3 and use it in your second query, like this:
Query 2:
POST /_search
{
"size": 10,
"query": {
"filtered": {
"filter": {
"range": {
"price": {
"gte": 12.3
}
}
}
}
}
}

Answer 2

After I tried using different ES aggregations such as bucket selector , I found that it can be done using python.
Here is the python code I created to solve this issue.
Please note: URL , USER_NAME , PASSWORD needs to be filled before run it.
#! /usr/bin/python
import sys,json,requests
from requests.auth import HTTPBasicAuth
# static variables
URL=''
USER_NAME=''
PASSWORD=''
# returns avg value
def getAvg():
query = json.dumps({
"aggs": {
"single_avg_price": {
"avg": {
"field": "price"
}
}
}
})
response = requests.get(URL,auth=HTTPBasicAuth(USER_NAME,PASSWORD), data=query)
results = json.loads(response.text)
return results['aggregations']['single_avg_price']['value']
#returns rows that are greater than avg value
def rows_greater_than_avg(avg_value):
query = json.dumps({
"query" : {
"range": {
"price": {
"gte":avg_value
}
}
}
})
response = requests.get(URL,auth=HTTPBasicAuth(USER_NAME,PASSWORD), data=query)
results = json.loads(response.text)
return results
# main method
def main():
avg_value = getAvg()
print( rows_greater_than_avg(avg_value))
main()