Elasticsearch: merge terms query and match query
The terms query seems appropriate for the name. However, I would recommend a term filter for the "age", since it is a numeric value. Generally, the match query is for analyzed fields that you plan to do full-text searching on.
As an example, you can link your two search criteria together using a filtered query like this:
{ "query": { "filtered": { "query": { "terms": { "user_name": ["john","mary","jim"] } }, "filter": { "term": { "age": 20 } } } }}Another possibility is to combine your search criteria using a bool query. For example.
{ "query": { "bool": { "must": [ { "terms": { "user_name": ["john","mary","jim"] } }, { "term": { "age": 20 } } ] } }}Have a look at the documentation for Bool Query here.