表名问题
lower_case_file_system
| System Variable | Name | lower_case_file_system | |
| Variable Scope | Global | ||
| Dynamic Variable | No | ||
| Permitted Values | Type | boolean | |
This variable describes the case sensitivity of file names on the file system where the data directory is located. OFF means file names are case sensitive, ON means they are not case sensitive. This variable is read only because it reflects a file system attribute and setting it would have no effect on the file system.
https://dev.mysql.com/doc/refman/5.7/en/server-system-variables.html#sysvar_lower_case_table_names
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