Sql Expressions: (Chore) Dedicated logger for expr.sql, and pass context (#109549)

pkg/expr/transform.go

@@ -88,7 +88,7 @@ func (s *Service) TransformData(ctx context.Context, now time.Time, req *Request
 
 	// Build the pipeline from the request, checking for ordering issues (e.g. loops)
 	// and parsing graph nodes from the queries.
-	pipeline, err := s.BuildPipeline(req)
+	pipeline, err := s.BuildPipeline(ctx, req)
 	if err != nil {
 		return nil, err
 	}