filesystemAvailable and similar functions now supported in clickhouse-local

Why it matters

This feature enables users to utilize filesystem-related functions such as filesystemAvailable within the clickhouse-local environment, expanding its capabilities for local data processing and system information retrieval. It resolves limitations where these functions were previously unavailable in clickhouse-local.

How to use it

Users can simply invoke filesystem-related functions like filesystemAvailable in the clickhouse-local command-line environment as they would in the regular ClickHouse server context, without requiring additional configuration.