Support Parallel Reading for Azure Blob Storage to Enhance Performance

Why it matters

This feature addresses the performance limitations when reading data from Azure Blob Storage by enabling parallel data retrieval. It allows ClickHouse to read multiple parts of the data concurrently, significantly speeding up query execution and data processing when using Azure as an object storage backend.

How to use it

To enable this feature, use the experimental Azure object storage configuration in ClickHouse and ensure that the storage settings allow parallel reading. No additional user-side configuration is typically required beyond setting up Azure Blob Storage integration.