Organizations sometimes manage multiple Iceberg catalogs, each tailored to specific workloads, teams, regulatory requirements, or operational needs. While this diverse array of catalogs allows organizations to optimize their data strategies, it also introduces challenges in unifying access and ensuring seamless integration. Apache Polaris addresses this problem by enabling connections to external Iceberg catalogs by integrating those using the Apache Iceberg REST Catalog Specification. This innovative feature enables Polaris to serve as a central access point for all Iceberg tables, regardless of the underlying catalog, thereby simplifying multi-catalog use cases and enhancing operational flexibility.
With Polaris, users can query and manage Iceberg tables from external catalogs as if they were part of Polaris. By connecting their Polaris catalog to their favorite engines, end users gain unified access to datasets across multiple catalogs without managing separate credentials or interfaces (Figure 4-1). This capability makes it significantly easier to leverage the best features of different catalogs while maintaining a cohesive and user-friendly experience.
Figure 4-1. Access to Polaris can be access to all catalogs on the lakehouse
Organizations across industries often find themselves managing multiple Iceberg catalogs, sometimes due to regional ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month, and much more.
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.
Julian F.
Head of Cybersecurity
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.
Addison B.
Field Engineer
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.
Amir M.
Data Platform Tech Lead
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.
