Comparison
oceanbase vs pgvector
Verdict
Pick oceanbase if oceanBase is designed to be the fastest distributed database for handling transactional and analytical workloads simultaneously, including support for AI tasks; pick pgvector if pgvector extends PostgreSQL with efficient vector similarity searches.
Markdown twin · oceanbase alternatives · pgvector alternatives
GraphCanon updated 3w
vs
Trust & integrity
| Signal | oceanbase | pgvector |
|---|---|---|
| Maintenance | Very active (0d since push) As of 1mo · github_public_v1 | Very active (0d since push) As of 3w · github_public_v1 |
| Provenance | Not a fork · Organization account As of 1mo · github_public_v1 | Not a fork · Organization account As of 3w · github_public_v1 |
| OSV dependency advisories | No lockfile (source not queried) As of 1mo · osv@v1 | No lockfile (source not queried) As of 1mo · osv@v1 |
| deps.dev advisories | Not queried deps.dev@v1 | Not queried deps.dev@v1 |
| OpenSSF Scorecard | Not queried openssf-scorecard@v1 | Not queried openssf-scorecard@v1 |
Tagline
- oceanbase
- The Fastest Distributed Database for Transactional, Analytical, and AI Workloads
- pgvector
- Open-source vector similarity search for Postgres
Stars
- oceanbase
- 10k
- pgvector
- 22k
Forks
- oceanbase
- 1.9k
- pgvector
- 1.3k
Open issues
- oceanbase
- 545
- pgvector
- 14
Language
- oceanbase
- C++
- pgvector
- C
Adopt for
- oceanbase
- OceanBase is designed to be the fastest distributed database for handling transactional and analytical workloads simultaneously, including support for AI tasks.
- pgvector
- pgvector extends PostgreSQL with efficient vector similarity searches.
Persona
- oceanbase
- -
- pgvector
- -
Runtime
- oceanbase
- -
- pgvector
- -
License
- oceanbase
- Apache-2.0
- pgvector
- Other
Last pushed
- oceanbase
- Jul 21, 2026
- pgvector
- Jul 28, 2026
Categories
- oceanbase
- Vector Databases
- pgvector
- Vector Databases
Trust and health
Open issues (now)
- oceanbase
- 545
- pgvector
- 14
Full report
- oceanbase
- Trust report
- pgvector
- Trust report
Typed relationship
oceanbase alternative pgvectorBoth provide vector similarity search functionality but within different environments (OceanBase is standalone while pgvector extends PostgreSQL), making them alternatives in a specific use-case context.
Choose oceanbase if…
- oceanbase is primarily C++; pgvector is C.
- License: oceanbase is Apache-2.0, pgvector is Other.
- Pricing: Not Provided.
- Requirements: Dependent on specific workload and scale, but optimized for distributed environments..
- Both provide vector similarity search functionality but within different environments (OceanBase is standalone while pgvector extends PostgreSQL), making them alternatives in a specific use-case context.
- Tags unique to oceanbase: analytics, cloud-native, database, distributed-database.
- The Fastest HTAP: Use OceanBase when your application requires high-speed handling of both online transaction processing (OLTP) and online analytical processing (OLAP) tasks.
When NOT to use oceanbase
- Limited Support for Non-C++ Ecosystems: Avoid OceanBase if your development environment heavily relies on languages other than C++, as it's predominantly built with C++.
- Mature Alternatives in Non-HTAP Scenarios: Do not choose OceanBase if your project requires only traditional OLTP or OLAP services, since it might overcomplicate your setup without necessary benefits.
Choose pgvector if…
- pgvector is primarily C; oceanbase is C++.
- License: pgvector is Other, oceanbase is Apache-2.0.
- Both provide vector similarity search functionality but within different environments (OceanBase is standalone while pgvector extends PostgreSQL), making them alternatives in a specific use-case context.
- Tags unique to pgvector: approximate-nearest-neighbor-search, nearest-neighbor-search.
- pgvector ships Docker support for self-hosted deployment.
- When you need to perform approximate nearest neighbor or exact nearest neighbor searches on your vectors and prefer to keep the data within a PostgreSQL database.
When NOT to use pgvector
- When the requirement is to have a standalone in-memory or distributed vector database system as pgvector remains strictly integrated with PostgreSQL.
- For scenarios where high availability and clustering capabilities without manual intervention (beyond what standard PostgreSQL offers) are necessary.
- If the application's performance benefits significantly from a pre-optimized engine tailored specifically towards vector searches, rather than leveraging an extension within PostgreSQL.
Explore
Sources
Every stat on this page traces to a dated GitHub sync, license file, enrichment field, or trust scan.
- GitHub stars (oceanbase/oceanbase) · observed Jul 21, 2026
- GitHub forks (oceanbase/oceanbase) · observed Jul 21, 2026
- Last push (oceanbase/oceanbase) · observed Jul 21, 2026
- License file (Apache-2.0) · observed Jul 21, 2026
- Decision facts (enrichment) · observed Jul 11, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
- GitHub stars (pgvector/pgvector) · observed Jul 28, 2026
- GitHub forks (pgvector/pgvector) · observed Jul 28, 2026
- Last push (pgvector/pgvector) · observed Jul 28, 2026
- License file (Other) · observed Jul 28, 2026
- Decision facts (enrichment) · observed Jul 11, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
GitHub stars on cards: oceanbase 10k · pgvector 22k (synced Jul 21, 2026).
Common questions
- What is the difference between oceanbase and pgvector?
- oceanbase: The Fastest Distributed Database for Transactional, Analytical, and AI Workloads. pgvector: Open-source vector similarity search for Postgres. See the comparison table for live GitHub stats and shared categories.
- When should I choose oceanbase over pgvector?
- Choose oceanbase over pgvector when oceanbase is primarily C++; pgvector is C; License: oceanbase is Apache-2.0, pgvector is Other; Pricing: Not Provided; Requirements: Dependent on specific workload and scale, but optimized for distributed environments.; Both provide vector similarity search functionality but within different environments (OceanBase is standalone while pgvector extends PostgreSQL), making them alternatives in a specific use-case context; Tags unique to oceanbase: analytics, cloud-native, database, distributed-database; The Fastest HTAP: Use OceanBase when your application requires high-speed handling of both online transaction processing (OLTP) and online analytical processing (OLAP) tasks.
- When should I choose pgvector over oceanbase?
- Choose pgvector over oceanbase when pgvector is primarily C; oceanbase is C++; License: pgvector is Other, oceanbase is Apache-2.0; Both provide vector similarity search functionality but within different environments (OceanBase is standalone while pgvector extends PostgreSQL), making them alternatives in a specific use-case context; Tags unique to pgvector: approximate-nearest-neighbor-search, nearest-neighbor-search; pgvector ships Docker support for self-hosted deployment; When you need to perform approximate nearest neighbor or exact nearest neighbor searches on your vectors and prefer to keep the data within a PostgreSQL database.
- When should I avoid oceanbase?
- Limited Support for Non-C++ Ecosystems: Avoid OceanBase if your development environment heavily relies on languages other than C++, as it's predominantly built with C++. Mature Alternatives in Non-HTAP Scenarios: Do not choose OceanBase if your project requires only traditional OLTP or OLAP services, since it might overcomplicate your setup without necessary benefits.
- When should I avoid pgvector?
- When the requirement is to have a standalone in-memory or distributed vector database system as pgvector remains strictly integrated with PostgreSQL. For scenarios where high availability and clustering capabilities without manual intervention (beyond what standard PostgreSQL offers) are necessary. If the application's performance benefits significantly from a pre-optimized engine tailored specifically towards vector searches, rather than leveraging an extension within PostgreSQL.
- Is oceanbase or pgvector more popular on GitHub?
- pgvector has more GitHub stars (22,375 vs 10,214). Stars measure visibility, not whether either tool fits your constraints.
- Are oceanbase and pgvector open source?
- Yes - both are open-source projects on GitHub (oceanbase: Apache-2.0, pgvector: Other).
- Where can I find alternatives to oceanbase or pgvector?
- GraphCanon lists graph-backed alternatives at oceanbase alternatives and pgvector alternatives (oceanbase markdown twin, pgvector markdown twin), 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 mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers.
- Which is better maintained, oceanbase or pgvector?
- oceanbase: Very active. pgvector: Very active. 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 oceanbase and pgvector?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: oceanbase trust report; pgvector trust report.