AnnotateSQL annotates information about a sql query in the span.

CopySpan creates a new context from parentCtx, with only the trace span copied over from spanCtx, if it has any.

FromContext returns the Span from a Context if present.

LogErrorsWhenClosing will close the provided Closer, and log any errors it generates.

NewContext returns a context based on parent with a new Span value.

NewSpan creates a new Span with the currently installed tracing plugin.

StartTracing enables tracing for a named service.

Span represents a unit of work within a trace.