运行时参数变更的能力
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- Dominant language
- C++
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Description
Is your feature request related to a problem? Please describe.
A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
当前需要有一些手段来控制运行时的参数，比如是否打开rewriter，或者打开关闭某些规则。
Describe the solution you'd like
A clear and concise description of what you want to happen.
增加系统变量，可以动态更新。
参考MySQL的设计，可以增加全局变量、会话变量的概念，并支持修改和查询。
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by surveying how runtime parameters, the rewriter, and individual rules are currently configured. Compare the desired global and session variables with MySQL's model, including how variables are modified and queried. Done should include a clearly defined interface and working support for dynamic updates, but the issue does not name files or tests.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp
- Domain
- databases
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100