Query Routing
Definition
Query routing selects suitable targets for a query.
The rule- or model-based selection of an appropriate index, shard, search service, or model for a query. Routing decides on targets; it does not necessarily generate new subqueries.
Simply explained
A question is directed to the appropriate knowledge base, for example to technical support or the HR department.
Why it matters in practice
The term improves reliable access to data and knowledge as well as their usable linkage in digital systems.
Example from business
Technical questions go to the documentation, personnel inquiries to the protected HR index.
Limits and pitfalls
- Do not equate routing with query fan-out or federation and do not neglect permissions, fallbacks, load, costs, or quality measurement.
Origin & history
Query routing evolved in distributed and federated search systems and later in specialized AI pipelines.
Use in mid-sized companies
- Possible application: Technical questions go to the documentation, personnel inquiries to the protected HR index.
Frequently asked questions
What does query routing mean?
The rule- or model-based selection of an appropriate index, shard, search service, or model for a query. Routing decides on targets; it does not necessarily generate new subqueries. What mistakes should be avoided? Equating routing with query fan-out or federation and neglecting permissions, fallbacks, load, costs, or quality measurement.
Sources
Source checked on 10.10.2026. Editorial application examples are hypothetical; no evidence of real customer results.
Editorially reviewed on: