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Azure Database for PostgreSQL vs Milvus comparison

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Comparison Buyer's Guide

Executive Summary

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

Azure Database for PostgreSQL
Ranking in Open Source Databases
4th
Average Rating
8.8
Reviews Sentiment
6.4
Number of Reviews
31
Ranking in other categories
Database as a Service (DBaaS) (3rd)
Milvus
Ranking in Open Source Databases
15th
Average Rating
7.4
Reviews Sentiment
7.5
Number of Reviews
5
Ranking in other categories
Vector Databases (14th)
 

Mindshare comparison

As of November 2026, in the Open Source Databases category, the mindshare of Azure Database for PostgreSQL is 2.0%, up from 0.6% compared to the previous year. The mindshare of Milvus is 4.6%, down from 5.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Open Source Databases Mindshare Distribution
ProductMindshare (%)
Azure Database for PostgreSQL2.0%
Milvus4.6%
Other93.4%
Open Source Databases
 

Featured Reviews

Sathish Palanisamy - PeerSpot reviewer
Staff Data Engineer at a transportation company with 10,001+ employees
Improves database performance, supports AI integration, and accelerates customer-focused innovation
Azure Database for PostgreSQL can be improved in the area of elastic capabilities. One of the things we were actively looking for is the elastic feature, which was made a GA at this Ignite event. I am really happy that finally in Azure, we have a product which we can use for elastic clusters. If you are bound with a single server, then you have a vertical limit. Now you do not have any limits. As long as your use case grows, we can grow. The only thing I would maybe be thinking about is we should also allow customers to pick different node sizes for every node inside the elastic eventually. Some nodes do not need that big capacity. So that may be a nice-to-have feature, though it is not a must-have at this point.
Sameer Bhangale - PeerSpot reviewer
Leader, Data Science Practice at a computer software company with 5,001-10,000 employees
Provides quick and easy containerization, but documentation is not very user-friendly
Milvus' documentation is not very user-friendly and doesn't help me get started quickly. Chroma DB provides super user-friendly documentation, enabling new users to get started quickly. Chroma DB's setup doesn't have many dependencies, whereas Milvus usually comes with some dependencies because of the way it needs to be deployed. Unlike Milvus, it's very easy to do POCs with Chroma DB.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"I rate Azure Database for PostgreSQL 10 out of 10."
"I rate Azure Database for PostgreSQL 10 out of 10."
"Azure Database for PostgreSQL has positively impacted our organization by helping us improve reliability and simplify database operations."
"The benefits we have realized as a company from using Azure Database for PostgreSQL on Azure make the life of our customers and our solution easier."
"Compared to my previous expenses for maintaining an on-premise PostgreSQL database, Azure Database for PostgreSQL is far easier, far simpler, and far cheaper in my opinion."
"I would definitely recommend Azure Database for PostgreSQL because it has many advantages for modern applications and enterprise workloads, including its open-source nature reducing licensing costs, large community support, extensive ecosystem, and robust security, backup, and high availability features, resulting in a good balance of performance, scalability, security, and cost efficiency."
"The effective integration of Postgres with Microsoft products, especially with the inclusion of AI features in Azure AI, is significant for our applications."
"If a client is looking to check these boxes—performance, speed, reliability, and resiliency in general—knowing that it will satisfy application needs not just today but in the future, it is definitely a choice."
"Milvus has good accuracy and performance."
"I like the accuracy and usability."
"Milvus offers multiple methods for calculating similarities or distances between vectors, such as L2 norm and cosine similarity. These methods help in comparing different vectors based on specific use cases. For instance, in our use case, we find that the L2 distance works best, but you can experiment with different methods to find the most suitable one for your needs."
"The solution is well containerized, and since containerization is quick and easy for me, I can scale it up quickly."
"The best feature of Milvus was finding the closest chunk from a huge amount of data."
 

Cons

"They can offer more RAG extensions. Currently, it only has the vector search."
"The critical service is the Azure OpenAI service. It would help to make it simpler and easier to integrate with that or cognitive services."
"There aren't any notable areas for improvement that I could see. PostgreSQL was self-sufficient with no need for additional database knowledge to maintain it."
"I do not know how Azure Database for PostgreSQL can be improved or what additional features I would prefer to see. There may be some pain points that would be valuable to fix."
"My impressions of the latency and availability of Azure Database for PostgreSQL is that it is a concern that arises post-migration."
"The pay-as-you-go pricing model of Azure Database for PostgreSQL has actually increased costs."
"Occasionally, we experience throughput issues due to bandwidth limitations of client setups with Azure, which have limited connections, but as far as the service itself goes, it has been rock solid."
"For development purposes, it is fine, but on production, you need to have a check on the cost of it."
"Milvus could make it simpler. Simplifying the requirements and making it more accessible. It could be more user-friendly."
"Milvus' documentation is not very user-friendly and doesn't help me get started quickly."
"I've heard that when we store too much data in Milvus, it becomes slow and does not work properly."
"Milvus has higher resource consumption, which introduces complexity in implementation."
 

Pricing and Cost Advice

"The pricing experience is positive. Azure Database for PostgreSQL reduces the need for hardware investments, and the pay-as-you-go pricing model positively affects database-related costs by allowing us to start small and scale as needed."
"We do not pay for a full-year subscription because our usage is still at the beginning phase and not much. The pay-as-you-go model works well for us."
"There aren't any notable areas for improvement that I could see. PostgreSQL was self-sufficient with no need for additional database knowledge to maintain it."
"The pay-as-you-go pricing model plays a critical role in managing database-related costs and resource allocation. We build using Infrastructure as Code (IAC) and maintain a focus on FinOps to control Azure service costs. Some clients are pushy on price. It's critical to automate it, so we're just using it when appropriate and switching it off in certain scenarios."
"Milvus is an open-source solution."
"Milvus is an open-source solution."
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Top Industries

By visitors reading reviews
Comms Service Provider
18%
Financial Services Firm
13%
Manufacturing Company
9%
Outsourcing Company
8%
Comms Service Provider
11%
Computer Software Company
10%
Manufacturing Company
10%
Financial Services Firm
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business9
Midsize Enterprise4
Large Enterprise19
No data available
 

Questions from the Community

What is your experience regarding pricing and costs for Azure Database for PostgreSQL?
My experience with pricing, setup cost, and licensing is that pricing is very important due to budget constraints in each project; while migration costs can be high during the process, after migrat...
What needs improvement with Azure Database for PostgreSQL?
In terms of improvement for Azure Database for PostgreSQL, the native applications can be enhanced, as we can use different tools to connect the database, but I believe the browser on the Azure por...
What is your primary use case for Azure Database for PostgreSQL?
My main use case for Azure Database for PostgreSQL involves migration from on-premise to Azure Database for PostgreSQL using technologies such as a migration database DMA. A specific example of a m...
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Overview

 

Sample Customers

Information Not Available
1. Alibaba Group 2. Tencent 3. Baidu 4. JD.com 5. Meituan 6. Xiaomi 7. Didi Chuxing 8. ByteDance 9. Huawei 10. ZTE 11. Lenovo 12. Haier 13. China Mobile 14. China Telecom 15. China Unicom 16. Ping An Insurance 17. China Life Insurance 18. Industrial and Commercial Bank of China 19. Bank of China 20. Agricultural Bank of China 21. China Construction Bank 22. PetroChina 23. Sinopec 24. China National Offshore Oil Corporation 25. China Southern Airlines 26. Air China 27. China Eastern Airlines 28. China Railway Group 29. China Railway Construction Corporation 30. China Communications Construction Company 31. China Merchants Group 32. China Evergrande Group
Find out what your peers are saying about Azure Database for PostgreSQL vs. Milvus and other solutions. Updated: November 2026.
920,574 professionals have used our research since 2012.