Update "SQL Statement Level Statistics" to hard - Githubissues

pingcap / talent-plan

open source training courses about distributed database and distributed systems

https://tidb.io/talent-plan

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Update "SQL Statement Level Statistics" to hard #362

Closed breezewish closed 4 years ago

breezewish commented 4 years ago

What problem does this PR solve?

Issue number: close #xxx
Breif description of the problem:

What is changed and how it works?

This PR update the difficulty to hard.

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