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Faiss vs PostgreSQL comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Jan 23, 2025

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

Faiss
Ranking in Open Source Databases
13th
Ranking in Vector Databases
5th
Average Rating
8.0
Reviews Sentiment
8.8
Number of Reviews
2
Ranking in other categories
No ranking in other categories
PostgreSQL
Ranking in Open Source Databases
1st
Ranking in Vector Databases
9th
Average Rating
8.4
Reviews Sentiment
7.7
Number of Reviews
125
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of May 2025, in the Open Source Databases category, the mindshare of Faiss is 4.2%, up from 2.6% compared to the previous year. The mindshare of PostgreSQL is 18.0%, down from 20.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Open Source Databases
 

Featured Reviews

Vasu Bansal - PeerSpot reviewer
Provides quick query search and has a big database
I did not face any issues integrating Faiss with other tools. I would recommend the solution to other users. Faiss has facilitated my AI-driven project very well. I recommend that other users use it for their AI projects because it provides quick query search and has a big database. Overall, I rate the solution nine and a half out of ten.
PavithrarajShetty - PeerSpot reviewer
Offers simplicity and is cheaply priced
I haven't gone through the scalability aspect since I was using MySQL Server. I haven't worked to a high level in PostgreSQL, but with MySQL Server, I have managed clustering and partitioning. I think I haven't put much focus on PostgreSQL, so I am not sure how it behaves or how it works.

Quotes from Members

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

Pros

"The product has better performance and stability compared to one of its competitors."
"I used Faiss as a basic database."
"The PostgreSQL database is similar to the SQL Server but has a slightly different technology that has similar resources as well. If the customer has the confidence using SQL Server, they will be fairly comfortable using this solution."
"It is easy to install and easy to manage. There is no license on it, so it is free. There is high compatibility with Oracle, and there are many tools for the migration of data from Oracle to Postgre."
"The database has excellent performance."
"It is very simple to manage."
"We use the solution to store tables. It is stable and performs well."
"Initial setup is simple."
"The solution is open-source and free to use."
"Scalable, stable, and easy to manage database system, with a straightforward installation."
 

Cons

"It could be more accessible for handling larger data sets."
"It would be beneficial if I could set a parameter and see different query mechanisms being run."
"I had some issues when I integrated with the Jupyter Notebook."
"Instead of the installation agent downloading all the packages for the install, it should allow the user to download the packages separately on their own to do the install."
"PostgreSQL doesn't have a feature for temporal SQL, which is useful for gathering versions of data. This feature should be included in PostgreSQL. This feature is available in MariaDB, SQL Server, Oracle Database, and DB2."
"It could be improved by using parallelization. You want basically, distributed computing."
"The database and applications can become very slow."
"It would be great if the solution offered even more integration capabilities."
"The solution needs to improve the query, documentation, and JSON data functionality."
"I don't think PostgreSQL supports bulk databases, so it needs to have more capabilities in terms of managing the bulk data."
 

Pricing and Cost Advice

"It is an open-source tool."
"Faiss is an open-source solution."
"Affordable solution."
"The tool is cheaply priced compared to other RDBMS providers in the market."
"The community version of Postgre is basically free."
"It is an open-source platform."
"It is free. In terms of operating costs, it basically needs the same platform on which Oracle runs."
"We use the open-source version of PostgreSQL and not the enterprise edition."
"The licensing model is good."
"Our company pays for it. There are free versions available, but for advanced features, you obviously have to pay."
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Use our free recommendation engine to learn which Open Source Databases solutions are best for your needs.
851,604 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Computer Software Company
19%
Financial Services Firm
14%
Manufacturing Company
8%
University
8%
Computer Software Company
15%
Financial Services Firm
12%
Comms Service Provider
10%
Manufacturing Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
 

Questions from the Community

What do you like most about Faiss?
I used Faiss as a basic database.
What needs improvement with Faiss?
I didn't know what algorithm was being learned to fetch my query. It would be beneficial if I could set a parameter and see different query mechanisms being run. I can then compare the results to s...
How does Firebird SQL compare with PostgreSQL?
PostgreSQL was designed in a way that provides you with not only a high degree of flexibility but also offers you a cheap and easy-to-use solution. It gives you the ability to redesign and audit yo...
What do you like most about PostgreSQL?
It's a transactional database, so we use Postgres for most of our reporting. That's where it's helping.
What is your experience regarding pricing and costs for PostgreSQL?
The tool is free of cost. For now, it's not about making money. But once we perfect it, we can offer it to customers willing to pay for support and other services. Most of my deployments are free.
 

Comparisons

 

Overview

 

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Find out what your peers are saying about Faiss vs. PostgreSQL and other solutions. Updated: April 2025.
851,604 professionals have used our research since 2012.