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Check all generated DML will get PointGetPlan #1851

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lance6716 opened this issue Jul 9, 2021 · 1 comment
Open

Check all generated DML will get PointGetPlan #1851

lance6716 opened this issue Jul 9, 2021 · 1 comment
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type/feature-request This issue is a feature request

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@lance6716
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lance6716 commented Jul 9, 2021 •
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Feature Request

Is your feature request related to a problem? Please describe:

sometimes downstream has changed table structure, and DM may silently assigned wrong plan, which may cause duration arise and TiDB CPU consumption arise

Describe the feature you'd like:

precheck the plan. If WHERE clause can cover PK/UK columns PointGet will be chosen. 🤔

fire a warning in alert manager.

Describe alternatives you've considered:

Teachability, Documentation, Adoption, Migration Strategy:
@lance6716
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cc @lysu

@lance6716 lance6716 added the type/feature-request This issue is a feature request label Jul 19, 2021
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