DuckDB Internals: Why Is DuckDB Fast? (Part 1)
DuckDBdatabase internalsperformancein-process executioncolumnar storagevectorized executionmorsel-driven parallelism
Author: marklit
Date: 6/16/2026
Article Summary:
The article provides a deep dive into the internals of the DuckDB database, explaining its design choices that make it fast, including in-process execution, columnar storage, vectorized execution, and morsel-driven parallelism.