Techniques and solutions are described for receiving query results from one or more query services. A system implementing disclosed techniques can receive an identifier for the query used by a query service and an identifier for the query used by the issuing computer system. The query service and the computer system that issued the query can use different schemas for query results. A mapping can be established that maps elements of one schema to the other schema. This mapping, and a mapping of the query identifiers, can be used to convert query results to a format useable by the computing system that issued the query. By converting query results from multiple query services, which may have different formats, to a common format of the issuing computing system, the use of multiple query services is facilitated.