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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
3rd
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
2nd
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 February 2025, in the Open Source Databases category, the mindshare of Faiss is 5.5%, up from 0.7% compared to the previous year. The mindshare of PostgreSQL is 18.6%, down from 21.7% 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.
AdityaSharma3 - PeerSpot reviewer
Transaction processes are fast and good replication capability
Use cases include querying data warehouses and databases to fetch data for clients already working on PostgreSQL.  We also use Postgres for building reports It's a transactional database, so we use Postgres for most of our reporting. That's where it's helping. The query speed is fast, and the…

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 product is quite flexible."
"Scalable, stable, and easy to manage database system, with a straightforward installation."
"The product's deployment is easy."
"The system can perform faster analysis by providing it with a lot of memory. Speed is crucial for analytics. Currently, the main reason we haven't adopted Elasticsearch is that we lack the necessary expertise to manage it."
"The performance is good."
"It's a transactional database, so we use Postgres for most of our reporting. That's where it's helping."
"PostgreSQL is stable. It's available, stable, and reliable."
"The database has excellent performance."
 

Cons

"It would be beneficial if I could set a parameter and see different query mechanisms being run."
"It could be more accessible for handling larger data sets."
"The performance of PostgreSQL could improve."
"The scalability is limited."
"We often find the solution's datetime datatype challenging."
"It needs more integration."
"I find it difficult to get connectors on the tool. For example, .NET has only one free provider in PostgreSQL. I need to pay the provider if I need something more sophisticated features. Other languages like PHP and Java have good community support. We need community support for .NET."
"The user interface could be a bit better."
"I have noticed that user and access management should be improved."
"The interface climate could be better."
 

Pricing and Cost Advice

"Faiss is an open-source solution."
"It is an open-source tool."
"We do not pay for licensing."
"There is an annual license."
"Our company pays for it. There are free versions available, but for advanced features, you obviously have to pay."
"The tool is cheaply priced compared to other RDBMS providers in the market."
"This solution can offer a cheaper choice for customers since it is open-source."
"Affordable solution."
"PostgreSQL is a free and open-source database."
"It is an open-source platform."
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Top Industries

By visitors reading reviews
Computer Software Company
20%
Financial Services Firm
13%
Manufacturing Company
9%
Educational Organization
8%
Computer Software Company
16%
Financial Services Firm
12%
Comms Service Provider
9%
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

 

Sample Customers

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Find out what your peers are saying about Faiss vs. PostgreSQL and other solutions. Updated: January 2025.
838,640 professionals have used our research since 2012.