Allow File Descriptors in ClickHouse Local Table Function

Why it matters

This feature enables clickhouse-local to read data directly from file descriptors through the file table function, increasing flexibility in data processing by supporting non-traditional file inputs such as pipes or other IPC mechanisms.

How to use it

When running clickhouse-local, use the file table function with a file descriptor as its argument. No additional configuration is needed beyond running in the clickhouse-local environment.