planner: low-priority set for Analyze Cop requests is not working in some latest versions
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component/statistics
sig/planner
type/enhancement
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Description
## Enhancement
To control the resources cost by `Analyze` and reduce the impact of `Analyze` to user's workload, we set all cop-requests triggerred by `Analyze` as low-priority. But after introducing Resource Control, this old mechanism is not working well in some latest versions, we might need to adapt it.
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