--- title: Apache Calcite Reviews meta\_title: 'Apache Calcite Reviews 2026: Details, Pricing, & Features | G2' meta\_description: Filter 13 reviews by the users' company size, role or industry to find out how Apache Calcite works for a business like yours. aggregate\_rating: rating\_value: 4.4 review\_count: 13 scale: '5' date\_modified: '2026-08-07' parent\_category: name: Database Software url: https://www.g2.com/categories/database-software --- # Apache Calcite Reviews & Product Details Apache Calcite is an open source framework for building databases and data management systems. It includes a SQL parser, an API for building expressions in relational algebra, and a query planning engine. * * * Seller [The Apache Software Foundation](https://www.g2.com/sellers/the-apache-software-foundation) Discussions [Apache Calcite Community](https://www.g2.com/products/apache-calcite/discuss) Show More ## Top-Rated Alternatives [ ![Microsoft SQL Server](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Microsoft SQL Server") Microsoft SQL Server 4.4/5(2,287) ](https://www.g2.com/products/microsoft-sql-server/reviews) [ ![MySQL](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "MySQL") MySQL 4.4/5(1,682) ](https://www.g2.com/products/mysql/reviews) [ ![Amazon Aurora](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Amazon Aurora") Amazon Aurora 4.5/5(458) ](https://www.g2.com/products/amazon-aurora/reviews) [ View All Alternatives ](https://www.g2.com/products/apache-calcite/competitors/alternatives) ## User Insights Average based on 13 real user reviews. [Log in to unlock pricing and user insights](/login) ![Mihir D.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Mihir D.") MD Mihir D. Cyber Security Analyst – Vulnerability & Risk Assessment Small-Business (50 or fewer emp.) 5/18/2026 "Flexible and Reliable SQL Query Optimization Framework" 4.5/5 What do you like best about Apache Calcite? I like that Apache Calcite makes query planning and optimization easier without forcing a specific storage system. It is flexible, works with many data sources, and gives developers control to build custom SQL engines while still keeping performance and scalability in mind. Review collected by and hosted on G2.com. What do you dislike about Apache Calcite? The learning curve can be difficult at first, especially for people new to query optimization or planner rules. Documentation is helpful but sometimes lacks simple examples for advanced use cases, which can make debugging and customization take more time than expected. Review collected by and hosted on G2.com. What problems is Apache Calcite solving and how is that benefiting you? Apache Calcite helps solve query parsing, optimization, and integration across different data sources. It saves development time because we do not need to build a query engine from scratch. It also improves query performance and makes handling complex SQL workloads more manageable. Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite ![Upendra S.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Upendra S.") US Upendra S. Sr. Devops engineer Enterprise (\> 1000 emp.) 5/20/2026 "Powerful, Flexible Query Optimization with Seamless Data Integration" 5/5 What do you like best about Apache Calcite? It allows seamless integration with different data sources and supports advanced SQL parsing, planning, and optimization. Overall, it provides powerful and flexible query optimization. Review collected by and hosted on G2.com. What do you dislike about Apache Calcite? Setting up and customising query optimization rule can complex and it has a steep learning curve especially for the beginners Review collected by and hosted on G2.com. What problems is Apache Calcite solving and how is that benefiting you? It’s help solve the problems related to sql query parsing optimization and integration across multiple data sources and this benifite us by improve query performance reducing deployment effort for the custome data integration and making it’s easier to handle complex analytic workflow Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite SK Shefali K. Mid-Market (51-1000 emp.) 2/8/2023 ""Apache Calcite: An Open Source Framework for Building Databases and Data Management Systems"" 5/5 What do you like best about Apache Calcite? Calcite provides a high-performance SQL parser that can translate SQL statements into a query plan, which can then be optimised for efficient execution. It supports multiple data sources and query languages, making it easy to integrate with existing systems and data sources. Review collected by and hosted on G2.com. What do you dislike about Apache Calcite? Calcite has a lot of features and capabilities, which can make it challenging to learn and use effectively. Calcite has a complex architecture, with multiple components that need to be understood and configured to use effectively. Review collected by and hosted on G2.com. What problems is Apache Calcite solving and how is that benefiting you? Calcite provides a high-performance SQL parser that can translate SQL statements into a query plan, which can then be optimized for efficient execution. Calcite provides support for multiple data sources and query languages, making it easier to integrate data from multiple sources into a single system. Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite ![Dhinesh C.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Dhinesh C.") DC Dhinesh C. Engr II-Software Development Small-Business (50 or fewer emp.) 6/1/2022 "Best framework in the industry to build data management systems" 5/5 What do you like best about Apache Calcite? My work required a lot of processing related to relational algebra. Calcite has an API for writing expressions in relational algebra which has made the whole process easy for me. This has saved a lot of time in my business. And especially the query optimization and planning engine are absolutely fantastic. Review collected by and hosted on G2.com. What do you dislike about Apache Calcite? There were no negatives that I had noticed till now. All the features were up to the latest industry standards and this has helped us a lot in the delivery of solutions. Review collected by and hosted on G2.com. Recommendations to others considering Apache Calcite: Great product. Will recommend all to use it to build data management systems and databases. Review collected by and hosted on G2.com. What problems is Apache Calcite solving and how is that benefiting you? Calcite API for building expressions in relational algebra has made my business process easy for me. This has saved a lot of time for my whole team and me and we have used the time saved for other important tasks. Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite ![Rekha C.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Rekha C.") RC Rekha C. Sr. US Recruiter Mid-Market (51-1000 emp.) 8/13/2022 "Good database framework with better performance optimization" 4.5/5 What do you like best about Apache Calcite? Strong performance optimization due the good database handling and connectivity. Secure and engaging user interface. Can handle different size databases with the same ease. The in-browser interface is also engaging. Review collected by and hosted on G2.com. What do you dislike about Apache Calcite? UI is bit confusing sometimes so it takes time to get a smooth experience and there are more integrations expected. There can be more repositories added for various data functions Review collected by and hosted on G2.com. What problems is Apache Calcite solving and how is that benefiting you? It's a lightweight, robust and performance-centric framework so it reduced our data handling and processing time. Now team added a few more data points for better accuracy and relevant results. Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite ![Ravi S.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Ravi S.") RS Ravi S. Technical Specialist Enterprise (\> 1000 emp.) 8/8/2022 "Apache calcite- the NextGen optimisation tool," 4.5/5 What do you like best about Apache Calcite? I used calcite for finetuning and optimising my application, it found the patterns and redundant queries so smoothly that we could not even thought of, it is compatible with all the file formats as well making life much more easier Review collected by and hosted on G2.com. What do you dislike about Apache Calcite? The only that seemed a challenge for.me is if a end user wants to use it, there must be some less technicalities involved at some levels. Review collected by and hosted on G2.com. What problems is Apache Calcite solving and how is that benefiting you? Optimising and finetuning Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite ![Raj V.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Raj V.") RV Raj V. M Enterprise (\> 1000 emp.) 3/15/2022 "Nothing beats Apache Calcite!" 5/5 What do you like best about Apache Calcite? Apache Calcite is one of those rare products which once you've discovered- you'll be in love with. For all our business requirements we've used this with multiple softwares and it has performed better than all its alternatives. Review collected by and hosted on G2.com. What do you dislike about Apache Calcite? There is nothing to dislike in this. This products misses nothing, everything is upto the mark. The team which has worked to brong this to life has wored really hard to understand customer requirements and have delivered accordingly. Review collected by and hosted on G2.com. Recommendations to others considering Apache Calcite: This is a timeless solution and you should definately look into getting this for your organization. Review collected by and hosted on G2.com. What problems is Apache Calcite solving and how is that benefiting you? Our business had specific objectives around increasing efficiency while reducing costs. Apache Calcite increased our productivity by upto 2x, while reducing our costs by upto 0.75x. Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite ![PRAGYAN .](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "PRAGYAN .") P PRAGYAN . Software engineer Enterprise (\> 1000 emp.) 7/29/2022 "Best cost optimize" 5/5 What do you like best about Apache Calcite? Cost based optimization is very easy to do. Review collected by and hosted on G2.com. What do you dislike about Apache Calcite? There is no as such thing/bug which I dislike about appache calcite Review collected by and hosted on G2.com. What problems is Apache Calcite solving and how is that benefiting you? For me I have to write alot of Cost based optimization query, in Apache calcite it's very easy to write and it saves my time. Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite ![Madan S.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Madan S.") MS Madan S. Sr Visual Designer Mid-Market (51-1000 emp.) 6/4/2022 "Awesome Apache Calcite!" 4.5/5 What do you like best about Apache Calcite? Cost-Based Optimizer, apache query optimization is easy and light. Review collected by and hosted on G2.com. What do you dislike about Apache Calcite? Nothing to dislike, still we need to improve the process to reach maximum results Review collected by and hosted on G2.com. What problems is Apache Calcite solving and how is that benefiting you? Optimization is Now very easy Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite ## Questions about Apache Calcite? Ask real users or explore answers from the community Get practical answers, real workflows, and honest pros and cons from the G2 community or share your insights. [ Ask about Apache Calcite ](https://www.g2.com/products/apache-calcite/discussions/new) GU Guest User What is Apache Calcite used for? 0 Upvotes 0 [ Join the conversation ](https://www.g2.com/discussions/what-is-apache-calcite-used-for) [ View all Discussions ](https://www.g2.com/products/apache-calcite/discuss) ##### Pricing Pricing details for this product isn’t currently available. Visit the vendor’s website to learn more. [ View More Pricing Information ](https://www.g2.com/products/apache-calcite/pricing) Apache Calcite Comparisons ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/small_square/small_square_9e6249d49a182e97a34b477a3611f47a/spark-sql.png "Product Avatar Image") Spark SQL 4.5/5(45) [ Compare Now ](https://www.g2.com/compare/apache-calcite-vs-spark-sql) ## Work at The Apache Software Foundation? Claim this profile to respond to reviews, update product info, and reach in-market buyers. 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