PostgreSQL
A powerful, open source object-relational database system
QuestDB
The fastest open source time-series database
Updated February 2026
| PostgreSQL | QuestDB | |
|---|---|---|
| Rating | 5.0★ | 5.0★ |
| Reviews | 74 | 4 |
| Pros | 19 | 0 |
| FactScore™ | 93.8 | 34.9 |
FactScore™ Comparison
FactScore™ weighs both quality (rating) and popularity (reviews) for a fairer ranking than stars alone.
Pros & Cons
Only in PostgreSQL — Pros
Reliability Performance Scalability Advanced features Open source Advanced indexing Pgvector extension Extensibility Complex queries JSON support Robust transaction support SQL compliance Strong community support Structured data management Data integrity Easy to scale Free Geospatial analysis High loads handlingBoth tools — Pros
—Only in QuestDB — Pros
No unique pros listedOnly in PostgreSQL — Cons
—Both tools — Cons
—Only in QuestDB — Cons
—Details
| PostgreSQL | QuestDB | |
|---|---|---|
| Categories | Data visualization tools, Databases and backend frameworks | Databases and backend frameworks, AI Databases |
| Platforms | Web | Web |
| Became Popular | N/A | July 30, 2020 |
| Website | www.postgresql.org | questdb.com |
Who Should Pick Which?
Choose PostgreSQL if...
- Reliability
- Performance
- Scalability
Choose QuestDB if...
- No unique pros listed
With a FactScore™ of 93.8 vs 34.9, PostgreSQL leads in community reception. PostgreSQL uniquely offers Reliability and Performance, while QuestDB stands out for No unique pros listed.
What Users Say
PostgreSQL
Postgres stands out thanks to its rock‑solid reliability and rich feature set—think advanced indexing, robust JSON support, and strong concurrency. It’s open source, highly scalable, and keeps our ...
I prefer PostgreSQL because it's just such an incredibly robust and versatile relational database that I trust. The huge advantage, especially for AI and search stuff lately, is the pgvector extens...
PGVector's native vector operations with PostgreSQL's ACID compliance works perfectly. We're storing millions of embeddings with sub-millisecond similarity search using cosine distance. The async c...
QuestDB
Hands down fastest database I've ever used. There is definitely a slight learning curve to getting it operational, and because of how new it is, it can be hard to find solutions online. That is a s...
We use QuestDB for our in-house analytics and audit log. This database powers Universal Link (Unilink) analytics.
Trading is all about Time-Series data. We chose QuestDB for its blazing fast ingestion and query performance for high-frequency market data and backtesting results. It handles millions of rows effo...
Related Comparisons
Frequently Asked Questions
Which is better, PostgreSQL or QuestDB?
Based on FactScore™, PostgreSQL leads with a score of 93.8 vs 34.9. PostgreSQL has a higher rating of 5.0★ compared to 5.0★.
What are the pros of PostgreSQL compared to QuestDB?
PostgreSQL uniquely offers: Reliability, Performance, Scalability, Advanced features, Open source.
What are the pros of QuestDB compared to PostgreSQL?
QuestDB uniquely offers: No unique pros listed.
Is PostgreSQL better rated than QuestDB?
PostgreSQL is rated 5.0★ from 74 reviews. QuestDB is rated 5.0★ from 4 reviews.
What is the FactScore™ of PostgreSQL and QuestDB?
FactScore™ weighs rating and review volume together. PostgreSQL scores 93.8 and QuestDB scores 34.9.
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