[Optimization] after registration data source, hope can be in the editor and quick reference table for quick DDL filling

[xiebanggui777]

如果注册数据源可以生成表的DDL，后期持久化，希望可以在编辑器中输入数据源名称后快捷填充table的DDL。
If the registered data source can generate the DDL of the table for post persistence, you can quickly fill in the DDL of the table after entering the name of the data source in the editor.

比如上图，编辑器中输入数据源名称，可提示对应的database和tables。鼠标选择后快速填充table DDL到编辑器
For example, in the above figure, enter the data source name in the editor to prompt the corresponding database and tables. Quickly fill table DDL to editor after mouse selection

[github-actions]

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