What is the ElasticSearch equivalent for an SQL subquery?
elasticsearch
Solution
Elasticsearch doesn't support subqueries; you would need to perform your first query, then construct a second query using the results of the first query as an input.
Problem
Can you nest queries logically in ElasticSearch, so the output of one query is the input to another query. Another, way to ask is how can I chain or pipe queries together? This should be analogous to the IN operator or subqueries in SQL i.e.:- select au_lname, au_fname, title from (select au_lname, au_fname, au_id from pubs.dbo.authors where state = 'CA') or SELECT Name FROM AdventureWorks2008R2.Production.Product WHERE ListPrice = (SELECT ListPrice FROM AdventureWorks2008R2.Production.Product WHERE Name = 'Chainring Bolts' );