Add system.s3_queue_settings and system.azure_queue_settings

Why it matters

These tables provide users with detailed access to the configuration and current settings of the queue mechanisms used for managing data uploads and downloads to S3 and Azure storage. This feature helps in monitoring, debugging, and optimizing external storage queue behavior within ClickHouse.

How to use it

Users can query the new system tables directly using SELECT * FROM system.s3_queue_settings or SELECT * FROM system.azure_queue_settings to retrieve current queue configurations and status information for the respective storage systems.