Implementations for query data splitting are disclosed. In one example, the method includes receiving, by a processing device, a first query and a second query, determining that the second query is a subset of the first query, determining a first set of attributes associated with the first query and a second set of attributes associated with the second query, and determining, by the processing device, whether to submit the second query or the first query to a database in view of the first set of attributes and the second set of attributes.