ClickHouse.Interface.stream_start

You're seeing just the callback stream_start, go back to ClickHouse.Interface module for more information.
Link to this callback

stream_start(client, query, opts)

View Source

Specs

stream_start(
  client :: ClickHouse.Client.t(),
  query :: ClickHouse.Query.t(),
  opts :: keyword()
) :: {:ok, ClickHouse.ResultStream.t()} | {:error, ClickHouse.error()}

A callback to start a query result stream with the network interface.