The Azure Cosmos DB global secondary index public preview now offers more functionality to optimize queries and help you get started. Previously known as materialized views, global secondary indexes are read-only containers that automatically sync data from a source container. They have an independent partition key, data model, and index policy, allowing you to fine-tune them for any query pattern.
Creating global secondary index containers is easier than ever—you can simply use the Azure portal. Builders are automatically provisioned for you and are offered for free, making global secondary indexes more cost effective.
To ensure that global secondary index containers stay up to date with source data, they must use autoscale throughput. Compatibility with other features has also increased, including continuous backups, which are required before enabling global secondary indexes.
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