pingcap / pingcap/tidb

prepared-plan-cache should support subquery

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#34,042 0 comments 0 reactions 2 assignees Claimed by @qw4990 View on GitHub
epic/plan-cache sig/planner type/enhancement
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Description

## Enhancement

Currently prepared-plan-cache does not support query with subquery, like not exists.
Subquery is not uncommon in read-world applications, support needed.

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