Write TraceQL queries in Grafana Tempo to filter traces by span attributes, duration, and status across nested spans

Steps

1. Open the Grafana Tempo datasource explore view and switch to TraceQL query mode
2. Write a span-set pipeline query: { .http.method = "POST" && .http.status_code >= 500 } to find error spans with specific attributes
3. Add duration filters: { duration > 500ms } to filter spans exceeding a latency threshold independent of attribute values
4. Use the select() operator to project specific attributes into the result for aggregation: { status = error } | select(.db.statement, .service.name)
5. Combine span filters with a trace-level filter using the >> operator to find traces where a specific span precedes another: { .span.kind = client } >> { status = error }