How to set the SQL mode by modifying the --sql-mode="modes" configuration option before starting TiDB?

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This topic has been translated from a Chinese forum by GPT and might contain errors.

Original topic: 如何TiDB 启动之前采用修改 --sql-mode=“modes” 配项设置 SQL 模式？

| username: TiDBer_WH4HEF3o

Before starting TiDB, modify the --sql-mode="modes" option to set the SQL mode? How to configure --sql-mode?

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| username: 我是咖啡哥 | Original post link

Isn’t it persistent after setting it globally? Why do you need to set it every time you start?