NOTE

1.22 MySQL Executor

1. What Is the Executor - Execute SQL 2. Executor Functions 2.1. Permission Check - For example, whether there is Select permission 2.2. Fetch Data - Call the storage engine interface to obtain data; if the conditions are met, put it into the result set

DatabasesCreated 07/18/2021Updated 07/18/20211 min readhistorical

This is a historical learning note and may contain outdated or incomplete understanding.

1. What Is the Executor

Execute SQL

2. Executor Functions

2.1. Permission Check

For example, whether there is Select permission

2.2. Fetch Data

Call the storage engine interface to obtain data; if the conditions are met, put it into the result set

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