When CommandBehavior.KeyInfo is set, the IsHidden column in the GetSchemaTable table result has no value

[netnr]

Setting CommandBehavior.KeyInfo in SQLServer will include the primary key column (composite primary key), even if the column is not queried, and the IsHidden column is True

select Id,DvTitle from TempExample

MySQL

SQLServer

[bgrainger]

CommandBehavior.KeyInfo isn't supported in MySqlConnector. (Based on https://learn.microsoft.com/en-us/dotnet/fundamentals/runtime-libraries/system-data-commandbehavior#notes-on-individual-enumeration-members, that enum member sounds like a very SQL-Server-specific flag.)