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PostgreSQL vs Redis comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Mar 5, 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

PostgreSQL
Ranking in Vector Databases
12th
Average Rating
8.4
Reviews Sentiment
7.7
Number of Reviews
125
Ranking in other categories
Open Source Databases (3rd)
Redis
Ranking in Vector Databases
4th
Average Rating
8.8
Reviews Sentiment
5.7
Number of Reviews
23
Ranking in other categories
NoSQL Databases (7th), In-Memory Data Store Services (1st)
 

Mindshare comparison

As of August 2025, in the Vector Databases category, the mindshare of PostgreSQL is 5.2%, up from 3.5% compared to the previous year. The mindshare of Redis is 4.8%, down from 5.9% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Vector Databases
 

Featured Reviews

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.
Yaseer Arafat - PeerSpot reviewer
Unmatched Performance and Scalability for Modern Applications
Redis has room for improvement in a few areas. Enhanced tools for managing and monitoring clusters would be beneficial, as would built-in security mechanisms like advanced encryption and granular access controls. Simplifying setup and configuration could make Redis more accessible to new users. Introducing more enterprise-grade features, such as better multi-tenancy support and improved backup and restore capabilities, would also be advantageous. For the next release, it would be great to see enhanced cluster management tools, native multi-region supports for better data redundancy, integrated analytics for deeper insights, AI and ML integration features, and improved developer experience through enhanced SDKs and tools.

Quotes from Members

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

Pros

"The product's deployment is easy."
"What I like is that it's quite powerful in terms of performance."
"PostgreSQL is stable. It's available, stable, and reliable."
"PostgreSQL is very easy to use. I have experience in Oracle SQL and PostgreSQL uses the same syntax which makes it is easy for me to develop."
"Clustering will be the number 1 feature. It is also open-source so it is free. It can also be clustered, to allow fault tolerance."
"It has completely met our needs. It works, and it is robust. We haven't had any problems with what PostgreSQL does for us and the way it does it. That's why we've been using it for so long. We understand it, and it does the job."
"We managed to reduce the storage space needed to 10% of the original size, without affecting data integrity, and we significantly improved the performance."
"It is very scalable and comes with a bonus: no licensing issues as you scale with your databases."
"It makes operations more efficient. The information processing is very fast, and very responsive. It's all about the technology."
"Redis provides an easy setup and operation process, allowing users to quickly connect and use it without hassle."
"I use Redis mostly to cache repeated data that is required."
"Redis is a simple service that does what it promises."
"I find Redis valuable primarily for its caching capabilities, particularly in handling cache requests effectively. Its simplicity in managing key-value pairs for caching is one of its strengths, making it a preferred choice over more complex databases like MongoDB for specific use cases. However, I haven't explored Redis extensively for managing complex data structures beyond caching, as MongoDB might be more suitable for such scenarios."
"The in-memory data makes it fast."
"Redis is good for distributed caching management."
"The solution's technical support team is good...The solution's initial setup process was straightforward."
 

Cons

"It could be improved by using parallelization. You want basically, distributed computing."
"Sometimes, the views create problems. If you don't have the view, sometimes what happens is you need to have the drivers properly set up for PostgreSQL."
"The interface climate could be better."
"It is possible that in the newer version this has been addressed, but I would like the deployment in microservices architecture could be improved."
"It could be more secure."
"As PostgreSQL is an open-source product, you do have to do a bit more configuration and management yourself."
"I'd like to see better memory management. I think that that's one of the few areas that Postgres does not handle as well as MySQL does or did."
"PostgreSQL could improve by adding data warehousing tools."
"The tool should improve by increasing its size limits and handling dynamic data better. We use the client ID or associate it with a key for static content. The solution will not be easy for a beginner. Unless you understand SQL data, it will be difficult to understand and use Redis. It also needs to be user-friendly."
"The initial setup of Redis was difficult, with a rating of two or three out of ten."
"I would prefer it if there was more information available about Redis. That would make it easier for new beginners. Currently, there is a lack of resources."
"There are some features from MongoDB that I would like to see included in Redis to enhance its overall efficiency, such as the ability to perform remote behaviour. MongoDB is more efficient in handling updates than deletions and is quicker in processing updates, but it can be slower regarding deletions. This can sometimes pose a challenge, especially when dealing with large datasets or frequent data manipulations that involve deletions. In such cases, I often rewrite columns or update values instead of directly deleting data, as it can be more efficient."
"There is room for AWS to provide more options for server types or a way to configure more or less memory for them."
"Redis could improve its efficiency in handling locally stored data, not just Amazon Cloud or Google Cloud."
"For the PubSub feature, we had to create our own tools to monitor the events."
"There is a lack of documentation on the scalability of the solution."
 

Pricing and Cost Advice

"Affordable solution."
"It is also open-source so it is free."
"There is an annual license."
"It is open-source. If you use it on-premise, it is free. It also has enterprise or commercial versions. If you go for the cloud version, there will be a cost, but it is lower than Oracle or Microsoft."
"It is open source. There is no licensing."
"The community version of Postgre is basically free."
"It is free, but if you need support, you can go for the commercial version called EnterpriseDB. They provide paid support, and they can even do hosting for you if you want standby and support."
"PostgreSQL is a free and open-source database."
"The tool is open-source. There are no additional costs."
"Redis is not an overpriced solution."
"Redis is an open-source product."
"We saw an ROI. It made the processing of our transactions faster."
"Redis is an open-source solution. There are not any hidden fees."
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Top Industries

By visitors reading reviews
Computer Software Company
15%
Financial Services Firm
11%
Comms Service Provider
9%
Manufacturing Company
8%
Financial Services Firm
24%
Computer Software Company
13%
Educational Organization
7%
Comms Service Provider
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

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.
What do you like most about Redis?
Redis is better tested and is used by large companies. I haven't found a direct alternative to what Redis offers. Plus, there are a lot of support and learning resources available, which help you u...
What needs improvement with Redis?
The disadvantage of Redis is that it's a little bit hard to have too many clusters or too many nodes and create the clusters. The sync between the nodes is easier to implement with Couchbase, for e...
What is your primary use case for Redis?
Redis is used for a part of a booking engine for travel, specifically for the front part to get some sessions and information about the sessions. If a customer or user is using the sites in differe...
 

Comparisons

 

Also Known As

No data available
Redis Enterprise
 

Overview

 

Sample Customers

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Find out what your peers are saying about PostgreSQL vs. Redis and other solutions. Updated: July 2025.
865,295 professionals have used our research since 2012.