Add DuckDB

[jinku-06]

What is this Python project?

DuckDB is an in-process SQL OLAP (Online Analytical Processing) database management system. It is designed for fast analytical queries on large datasets and integrates seamlessly with Python through the DuckDB package.

Key features.

• Embeddable: Runs in-process like SQLite, no server required.
• OLAP-focused: Optimized for analytics and columnar storage.
• Native Python support: Includes Pandas, NumPy, and Parquet integration.
• Zero setup: Works out of the box without configuration.
• Cross-platform and lightweight.

What's the difference between this Python project and similar ones?

• DuckDB vs SQLite: SQLite is optimized for transactional workloads (OLTP), while DuckDB is optimized for analytical workloads (OLAP).
• DuckDB vs PostgreSQL: PostgreSQL is a full server-client RDBMS; DuckDB is in-process, minimal setup, and better suited for quick analytics.

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