single-stage-engine.md

description
An overview of the single-stage query engine.

Single-stage query engine (v1)

The Pinot single-stage query engine (also known as v1 query engine) uses a scatter-gather query engine model, shown in the following diagram. In certain cases, for example, if you need to query using JOINs on large data sets, the multi-stage query engine (v2) may be a more performant option.

Single-stage query engine (v1)