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ClickHouse vs Rockset 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

ClickHouse
Ranking in Vector Databases
10th
Average Rating
8.8
Reviews Sentiment
7.7
Number of Reviews
10
Ranking in other categories
Open Source Databases (6th)
Rockset
Ranking in Vector Databases
17th
Average Rating
8.0
Reviews Sentiment
8.2
Number of Reviews
2
Ranking in other categories
AWS Marketplace (41st)
 

Mindshare comparison

As of May 2025, in the Vector Databases category, the mindshare of ClickHouse is 3.6%, up from 1.1% compared to the previous year. The mindshare of Rockset is 0.2%, up from 0.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Vector Databases
 

Featured Reviews

ArpitShah - PeerSpot reviewer
Open-source freedom with efficient data handling and room for documentation growth
A significant area for improvement is the documentation, which is not comprehensive and lacks centralized resources, making it difficult to find information. Additionally, ClickHouse lacks robust support for transactional data, which limits its use as a primary database. My developer experience could be enhanced through better-organized documentation, perhaps by offering a cheat sheet or centralized guide for common setup and usage scenarios.
Raghavendra Sao - PeerSpot reviewer
Used to get data from the database faster
Rockset is an easy tool, and anyone can use it. The solution provides some type of data grouping. This grouping of data based on some parameters is not simple, but it is very useful. I would recommend the solution to other users. Overall, I rate the solution an eight out of ten.

Quotes from Members

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

Pros

"ClickHouse is open source with no vendor lock-in, providing excellent freedom to choose any vendor without restrictions."
"ClickHouse is a user-friendly solution that tries to be compatible with SQL standards."
"The tool's most valuable feature is a database. It supports portal APIs and offers good flexibility."
"ClickHouse is much faster than traditional databases like MySQL and MongoDB. Its column-row searching strategy makes it very efficient. With ClickHouse, we can manage multiple databases, automatically insert data from other databases and delete data as needed. It supports real-time query performance, allowing simultaneous data insertion and retrieval. ClickHouse has improved significantly over the past two years, adding more functions and queries, as well as top functionality."
"It's easier to work with big data and calculations using the product."
"The best thing about the tool is that I can set it up on my computer and run queries without depending on the cloud. This is why I use it every day."
"The main feature of ClickHouse is the optimizer because we had too many records to deduplicate, and the optimizer took this task by itself."
"If you have a real-time basis, you should take a look at ClickHouse because it works on a vector database, and the querying is super fast compared to traditional databases."
"The initial setup was very simple."
"Rockset is very fast, and you can query just like in MySQL."
 

Cons

"We had a lot of troubles while deploying a whole cluster."
"There are some areas where ClickHouse could improve. Specifically, we encountered incompatibilities with its SQL syntax when migrating queries from MySQL or SQL to ClickHouse. This difference in details made it challenging to figure out the exact issues. Additionally, we faced difficulties due to the lack of a proper Django driver for ClickHouse, unlike MySQL, which Django supports out of the box."
"The main issue is the lack of documentation. Many features are available but are not fully documented, which can make finding information challenging."
"I would like ClickHouse to work more on integration with third-party tools."
"The aggregation capability is a valuable feature. It's highly efficient, allowing us to review entire transaction histories and user activities in the market. We've tried MongoDB, Postgres, MariaDB, and BigQuery, but ClickHouse is the most cost-efficient solution for collecting data at high speeds with minimal cost. We even used ClickHouse Cloud for a month, and it proved to be a great setup, especially for startups looking to handle big data. For example, if there is a need for 2-4 terabytes of data and around 40 billion rows with reasonable computing speed and latency, ClickHouse is ideal. Regarding the real-time query performance of ClickHouse, when using an API server to query it, I achieved query results in less than twenty milliseconds in some of my experiments with one billion rows. However, it depends on the scenario since ClickHouse has limitations in handling mutations. Additionally, one of ClickHouse's strengths is its compression capability. Our experimental server has only four terabytes, and ClickHouse effectively compresses data, allowing us to store large amounts of data at high speed. This compression efficiency is a significant advantage of using ClickHouse."
"If you join our team, it should be easy for you to use ClickHouse, especially if you are a developer. However, you need to read the documentation and understand the problems you are trying to solve."
"There aren't too many improvements I'd suggest for ClickHouse as it covers all my needs. There are just a few technical issues. For example, sometimes, when you want to get unique values and use certain tables, they don't work as expected. But it's not a major problem."
"One issue is that you need persistent volumes. Otherwise, if one system goes down, you lose data in that cluster."
"Rockset is now bought by OpenAI. It’s uncertain if Rockset will continue to exist as it is."
"Filtering the database based on indexes is difficult in Rockset and should be simplified."
 

Pricing and Cost Advice

"ClickHouse has an open-source version, which is free to use and has almost all the features."
"The tool is free."
"ClickHouse Cloud is not expensive compared to other databases, costing a few dollars per month while providing fast performance."
"If you have an in-house deployment on Kubernetes or something, it's going to be very cheap since you'll be managing everything."
"The tool is open-source."
"For pricing, if you use the self-hosted version, it would be free. Cloud services pricing would be an eight out of ten. I try to minimize costs but still have to monitor usage."
"We used the free, community version of ClickHouse."
Information not available
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Top Industries

By visitors reading reviews
Computer Software Company
26%
Financial Services Firm
16%
Educational Organization
13%
Manufacturing Company
9%
No data available
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
 

Questions from the Community

What is your experience regarding pricing and costs for ClickHouse?
ClickHouse is open source without direct fees, unlike other databases that have hidden fees or restrict hosting to their platforms. The open-source nature of ClickHouse allows for complete flexibil...
What needs improvement with ClickHouse?
A significant area for improvement is the documentation, which is not comprehensive and lacks centralized resources, making it difficult to find information. Additionally, ClickHouse lacks robust s...
What is your primary use case for ClickHouse?
The main use case for ClickHouse is as a data warehouse for handling large volumes of data that exceed the capabilities of traditional databases like Postgres. I use it for creating dashboards and ...
What needs improvement with Rockset?
For our use, there is no room for improvement. It depends on how you use it, however, from our perspective, it has met our needs.
What is your primary use case for Rockset?
We used Rockset as an SQL interface on some of DynamoDB. Our use case is primarily for customer-facing data reporting.
What advice do you have for others considering Rockset?
Rockset is now bought by OpenAI. It’s uncertain if Rockset will continue to exist as it is. OpenAI may have its own agenda for it. They have started canceling some contracts with customers, so this...
 

Comparisons

 

Overview

 

Sample Customers

Information Not Available
1. Adobe 2. Cisco 3. Comcast 4. DoorDash 5. Expedia 6. Facebook 7. GitHub 8. IBM 9. Lyft 10. Microsoft 11. Netflix 12. Oracle 13. Pinterest 14. Reddit 15. Salesforce 16. Slack 17. Spotify 18. Square 19. Target 20. Twitter 21. Uber 22. Verizon 23. Visa 24. Walmart 25. Yelp 26. Zoom 27. Airbnb 28. Dropbox 29. eBay 30. Google 31. LinkedIn 32. Amazon
Find out what your peers are saying about ClickHouse vs. Rockset and other solutions. Updated: April 2025.
850,028 professionals have used our research since 2012.