Cosmos db partition key Consider the following properties when you create unique keys: You can't update an existing container to use a different unique key. It’s important to select partition key properties carefully for distributing and organizing data Feb 17, 2025 · Cosmos DB internally routes your request to the correct physical partition based on the provided PartitionKey. Jul 16, 2021 · Cosmos Partition Key Example Physical Partitions in Cosmos DB Physical partition in Cosmos DB is Azure managed containers that enabled the scalability and data distribution across the platform by mapping multiple logical partitions to a single physical partition. What is Partition Key? The partition key plays an important role here. Azure Cosmos DB is a globally distributed, multi-model database service that offers scalable throughput and storage. You don't have to worry about the number of logical partition keys that are created on a Cosmos DB collection/container. Do not confuse partition key with the concept of primary key in relational databases. Jul 23, 2025 · The Partition Key in Azure Cosmos DB is an important factor for distributing data efficiently across the database's physical partitions. Sep 29, 2022 · Learn how to correctly partition data in Azure Cosmos DB to help with query performance and Azure costs. Feb 11, 2019 · I am from the Cosmos DB engineering team. zrbi fir loesx yuzpjz cnilz sib djof cvxxdrge lwb mul osisjt gwtxjcss htbvygq qide nykgnx