--- title: "databend vs postgresml" type: "comparison" canonical_url: "https://www.graphcanon.com/compare/databendlabs-databend-vs-postgresml-postgresml" tools: ["databendlabs-databend", "postgresml-postgresml"] --- # databend vs postgresml *GraphCanon updated Aug 21, 2026* ## Verdict Pick databend if data Agent Ready Warehouse built in Rust for analytics, search, AI, and more within a unified architecture on top of your S3 storage; pick postgresml if postgresML offers PostgreSQL with GPU acceleration for ML, distinguishing by its support of embedding operations directly into SQL queries. [databend](https://docs.databend.com) reports 9.4k GitHub stars, 891 forks, and 557 open issues, last pushed Aug 21, 2026. [postgresml](https://postgresml.org) has 6.8k stars, 365 forks, and 149 open issues, last pushed Jul 1, 2025. Figures are from public GitHub metadata via [databend's repository](https://github.com/databendlabs/databend) and [postgresml's repository](https://github.com/postgresml/postgresml). | | [databend](/tools/databendlabs-databend.md) | [postgresml](/tools/postgresml-postgresml.md) | | --- | --- | --- | | Tagline | All-in-One Data Warehouse: Analytics, Search, AI, and Python Sandboxing Reimagined From Scratch. | Postgres with GPUs for ML/AI apps | | Stars | 9,420 | 6,817 | | Forks | 891 | 365 | | Open issues | 557 | 149 | | Language | Rust | Rust | | Adopt for | Data Agent Ready Warehouse built in Rust for analytics, search, AI, and more within a unified architecture on top of your S3 storage. | PostgresML offers PostgreSQL with GPU acceleration for ML, distinguishing by its support of embedding operations directly into SQL queries. | | Persona | - | - | | Runtime | - | - | | License | Other | MIT | | Categories | Data & Retrieval, Vector Databases | Data & Retrieval, Model Training, Vector Databases | ## Trust and health _Sourced signals - not a safety guarantee. No winner column._ | | [databend](/tools/databendlabs-databend.md) | [postgresml](/tools/postgresml-postgresml.md) | | --- | --- | --- | | Maintenance | Very active (96%) | Dormant (18%) | | Days since push | 0d | 412d | | Open issues (now) | 557 | 149 | | Stars delta | +31 (30d) | +3 (30d) | | Open issues delta | +23 (30d) | 0 (30d) | | Full report | [trust report](/tools/databendlabs-databend/trust.md) | [trust report](/tools/postgresml-postgresml/trust.md) | ## Decision facts: databend - **Adopt for:** Data Agent Ready Warehouse built in Rust for analytics, search, AI, and more within a unified architecture on top of your S3 storage. ## Decision facts: postgresml - **Adopt for:** PostgresML offers PostgreSQL with GPU acceleration for ML, distinguishing by its support of embedding operations directly into SQL queries. ## Choose when ### Choose databend if… - License: databend is Other, postgresml is MIT. - Tags unique to databend: bigdata, cloud-native, database, elasticsearch. - - When you need a unified data platform that can handle analytics, search, and AI all from one interface, with support for vector database functions. ### Choose postgresml if… - License: postgresml is MIT, databend is Other. - Tags unique to postgresml: ann, approximate-nearest-neighbor-search, classification, clustering. - Also covers Model Training. - Requires integration of machine learning tasks directly within PostgreSQL queries ## When NOT to use databend - - When specific integration requirements are outside of S3 support, as Databend focuses on this particular ecosystem. - - For organizations that cannot or prefer not to use technologies built in Rust due to team expertise or existing tech stack conflicts. - - If your primary need is for a solution that heavily integrates with Elasticsearch given the competitive landscape and features it offers. ## When NOT to use postgresml - Teams not utilizing or unwilling to migrate to PostgreSQL databases - Applications where GPU access is limited, thus constraining ML capabilities ## Common questions ### What is the difference between databend and postgresml? databend: All-in-One Data Warehouse: Analytics, Search, AI, and Python Sandboxing Reimagined From Scratch.. postgresml: Postgres with GPUs for ML/AI apps. See the comparison table for live GitHub stats and shared categories. ### When should I choose databend over postgresml? Choose databend over postgresml when License: databend is Other, postgresml is MIT; Tags unique to databend: bigdata, cloud-native, database, elasticsearch; - When you need a unified data platform that can handle analytics, search, and AI all from one interface, with support for vector database functions. ### When should I choose postgresml over databend? Choose postgresml over databend when License: postgresml is MIT, databend is Other; Tags unique to postgresml: ann, approximate-nearest-neighbor-search, classification, clustering; Also covers Model Training; Requires integration of machine learning tasks directly within PostgreSQL queries. ### When should I avoid databend? - When specific integration requirements are outside of S3 support, as Databend focuses on this particular ecosystem. - For organizations that cannot or prefer not to use technologies built in Rust due to team expertise or existing tech stack conflicts. - If your primary need is for a solution that heavily integrates with Elasticsearch given the competitive landscape and features it offers. ### When should I avoid postgresml? Teams not utilizing or unwilling to migrate to PostgreSQL databases Applications where GPU access is limited, thus constraining ML capabilities ### Is databend or postgresml more popular on GitHub? databend has more GitHub stars (9,420 vs 6,817). Stars measure visibility, not whether either tool fits your constraints. ### Are databend and postgresml open source? Yes - both are open-source projects on GitHub (databend: Other, postgresml: MIT). ### Where can I find alternatives to databend or postgresml? GraphCanon lists graph-backed alternatives at [databend alternatives](/tools/databendlabs-databend/alternatives) and [postgresml alternatives](/tools/postgresml-postgresml/alternatives) ([databend markdown twin](/tools/databendlabs-databend/alternatives.md), [postgresml markdown twin](/tools/postgresml-postgresml/alternatives.md)), ranked by typed relationship edges rather than popularity votes. ### Is there a machine-readable version of this comparison? Yes. The markdown twin at [this comparison](/compare/databendlabs-databend-vs-postgresml-postgresml.md) mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers. ### Which is better maintained, databend or postgresml? databend: Very active. postgresml: Dormant. Compare maintenance labels, days since push, and release cadence in the trust section below - stars alone do not measure maintenance. ### Where are the full trust reports for databend and postgresml? GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: [databend trust report](/tools/databendlabs-databend/trust); [postgresml trust report](/tools/postgresml-postgresml/trust). --- **Machine-readable endpoints** - JSON: [`/api/graphcanon/graph?tool=databendlabs-databend`](/api/graphcanon/graph?tool=databendlabs-databend) - LLM index: [/llms.txt](/llms.txt) - Full corpus: [/llms-full.txt](/llms-full.txt) _GraphCanon - The knowledge graph for AI development. https://www.graphcanon.com/_