pingcap / pingcap/tidb

Optimize NewPlanCacheKey

Open
#59,801 3 comments 1 reaction 1 assignee Claimed by @qw4990 View on GitHub
epic/plan-cache sig/planner type/enhancement
Dominant language
Go
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40.5k
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Description

## Enhancement
According to the CPU profile of a point-select benchmark:

![Image](https://github.com/user-attachments/assets/18b8c563-c345-4a5e-ab13-e1fbb2ac4cde)

![Image](https://github.com/user-attachments/assets/3866ad43-25e1-45d9-855a-c68850ec7cc1)

`NewPlanCacheKey` takes more time than expected. Optimizing it can benefit fast tasks like point-select.

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