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Take oracle as an example.
select Table_Name
from user_tab_columns
where column_name ='auth'
Get all table names containing auth, and then assemble the corresponding select statement based on the obtained table names.

Search the field tables of other databases for details.

The mapped Java objects are different depending on the structure of the table. How to put them into a collection?

Directly check the 4 tables separately, and then integrate the 4 sets together and return

It’s the same as generics, just addAll() directly