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DirectoryData & AnalyticsData Warehouse & LakehouseDuckDB

DuckDB

Open Source

About DuckDB

DuckDB is an analytical database system that can be deployed in various environments. It uses a query language inspired by PostgreSQL. Its functionality can be extended through extensions. It provides APIs for major programming languages. It can read and write formats such as CSV, JSON, Parquet, and Iceberg. DuckDB and related projects are licensed under MIT and governed by the DuckDB Foundation.

Products

  • Quack: A client-server protocol for DuckDB where both client and server are DuckDB instances.
  • Iceberg: Support for reading and writing Apache Iceberg tables directly from DuckDB.

Used for

  • Querying Parquet files directly over HTTPS
  • Loading CSV files into tables with auto-detected format and types
  • Reading and writing Pandas dataframes
  • Creating custom user-defined functions
  • Performing bulk inserts using the Appender API

From DuckDB's own website, read 2026-10-23. How we build listings.

How to evaluate Data Warehouse & Lakehouse

This is how the CIOPages Research Team evaluates this category. It is not an assessment of DuckDB. The category covers two kinds of product, so both frameworks are here. Most buyers need one of them.

Cloud Data Warehouse
25%
Query Performance & Concurrency
TPC-DS benchmarks, concurrent user support, query queuing, automatic scaling, sub-second response for dashboards
20%
Data Ingestion & Integration
Streaming ingestion (Kafka, Kinesis), batch loading, CDC support, native connectors, data sharing/marketplace
20%
Governance & Security
Column/row-level security, dynamic data masking, data lineage, access policies, audit logging, compliance certifications
15%
AI/ML Integration
Native ML runtimes (Python/Spark), feature store, vector search, LLM integration, model serving
10%
Cost Management
Compute/storage separation, auto-suspend, resource monitors, usage attribution, reserved capacity pricing
10%
Ecosystem & Tooling
BI tool compatibility, dbt/Airflow integration, Iceberg/Delta support, partner ecosystem, marketplace
Data Lakehouse Platforms
25%
Open Format & Catalog Interoperability
Native read AND write to Apache Iceberg and/or Delta Lake, Iceberg REST Catalog support, credential vending for external engines, cross-format bridges (Delta UniForm, Apache XTable), and whether grants and lineage travel with the table when another engine reads it
20%
Query Engine Performance & Concurrency
Vectorized execution (Photon, Arrow/Gandiva, native engines), caching and materialization (reflections, result cache, Warp Speed), high-concurrency BI behavior, autoscaling, and predictable performance on your own data — not vendor benchmarks
20%
Data Engineering, Streaming & AI/ML
Batch and streaming ingestion into open tables, incremental/CDC and upsert support, orchestration, ML lifecycle (feature store, training, model serving), notebook and Python/Spark depth, and native LLM/agentic and vector capabilities
15%
Governance, Security & Lineage
A unified catalog spanning tables, files, ML models and (increasingly) unstructured data; fine-grained RBAC/ABAC, row/column masking, data sharing, automated lineage, and consistent policy enforcement across every engine that touches the data
10%
Operational Simplicity & Table Maintenance
Automated compaction, clustering, snapshot expiry and orphan-file cleanup; serverless vs. cluster sizing; multi-cloud and hybrid/on-prem reach; admin and FinOps tooling; and how much table toil the team must own versus the platform absorbing it
10%
Cost Model & Consumption Control
Consumption unit (DBU, credit, capacity unit, bytes/slots), separation of storage and compute, idle-suspend and autoscaling guardrails, egress and cross-region exposure, workload isolation, and the FinOps tooling to attribute and cap spend

CIOPages put this listing together from public sources. It’s information, not an endorsement. How we build listings. Work here? Claim this listing or .

Quick Facts

duckdb.org
CategoryData & Analytics
SubcategoryData Warehouse & Lakehouse
DeploymentEdge devices, Servers

We publish a detail only when we can point at the page it came from. Know when DuckDB was founded or where it is based? Send it to us, free.

Keep reading

Buyer Guide
Cloud Data Warehouse
Job 01
Decide where AI goes in the business

The board wants an AI plan, and every function wants to go first.

Job 05
Modernize the estate

AI agents need clean data and systems they can call, and old systems block both.