Why it matters
This feature improves ClickHouse's observability by adding more OpenTelemetry spans, enabling finer-grained tracing of query execution and internal operations. Additionally, it includes an example demonstrating how to export span data to Zipkin, helping users better monitor and debug their ClickHouse instances.How to use it
Users can enable the extended OpenTelemetry tracing by configuring their ClickHouse setup with the appropriate tracing options. They can refer to the included example to export span data to Zipkin by setting up the necessary OpenTelemetry Collector or compatible exporter. This typically involves configuring a trace dispatcher in ClickHouse and using the example as a template for integration with Zipkin-compatible backends.