Overview

The information_schema database in Doris is a special virtual database that contains metadata about the Doris cluster and all its database objects. These objects include databases, tables, columns, privileges, and more. Within the information_schema database, there are multiple read-only tables, which are actually views rather than real tables. Therefore, only SELECT operations can be performed on these tables, and data modification operations such as INSERT, UPDATE, DELETE, etc., are not allowed.