Bug Report
Please answer these questions before submitting your issue. Thanks!
Running the same query in pipeline mode and pull mode, the overall query peformance is almost the same, but the execution time for each executor differs a lot between pipeline mode and pull mode
In pipeline mode

HashAgg: 2.23s
Projection: 2.71s
Selection: 1.75s
Cpu flame graph

And in pull mode

HashAgg: 4.4s
Projection: 2.8s
Selection: 0.26s
Cpu flame graph

And compared with cpu flame graph, the executor time in pull mode is much more reasonable.
1. Minimal reproduce step (Required)
2. What did you expect to see? (Required)
3. What did you see instead (Required)
4. What is your TiFlash version? (Required)