feat(tracing/sql): emit breadcrumbs

sql_tracing.go

@@ -15,6 +15,8 @@ import (
 	"go.opentelemetry.io/otel/trace"
 )
 
+// TODO: Port to github.com/loghole/dbhook for proper error handling
+
 const (
 	sqlClientID = libBase + "#TracedSQL"
 )
@@ -79,16 +81,17 @@ func (h *tracedSQLHooks) Before(ctx context.Context, query string, args ...inter
 }
 
 func (h *tracedSQLHooks) After(ctx context.Context, query string, args ...interface{}) (context.Context, error) {
-	if s := SpanFromContext(ctx); s != nil {
-		s.End()
-	}
-
 	if val, ok := ctx.Value(dbCtxKey).(dbCtxVal); ok {
 		attrs := val.attrs
 
 		h.mDuration.Record(ctx, float64(time.Since(val.start).Milliseconds()), metric.WithAttributes(attrs...))
 	}
 
+	if s := SpanFromContext(ctx); s != nil {
+		s.CaptureBreadcrumb(SeverityDebug, BreadcrumbTypeQuery, "started", query, map[string]any{"args": args}).
+			End()
+	}
+
 	return ctx, nil
 }