How to pass array of records in parameters with npgsql

How to pass array of records postgres type as a parameter from c#?

I have tried to send it the same way it is received from query result - as double array of objects, but npgsql complains about it:

            var result = await dbContext.Database.GetDbConnection().QueryAsync<Person>(
                new CommandDefinition(
                    commandText: sql,
                    parameters: new
                    {
                        People = ids
                            .Select(t => new object[]
                            {
                                t.FirstName,
                                t.LastName
                            })
                            .ToArray()
                    },
                    cancellationToken: cancellationToken));

The CLR type System.Object isn't natively supported by Npgsql or your PostgreSQL. To use it with a PostgreSQL composite you need
to specify DataTypeName or to map it, please refer to the documentation.

I guess I need to use DynamicParameters object and specify type name manually, but it accepts enum instead of string and in enum there is no such value like object or record.

I need it for query like this one:

SELECT * FROM peopletable
WHERE ROW(firstname, lastname) = ANY(@people)

Can someone guide me how to do it?

The issue names the QueryAsync call, CommandDefinition, DynamicParameters, and the SQL using @people, but no repository files or tests. Start by tracing Dapper's parameter binding and comparing it with Npgsql's PostgreSQL composite-array requirements. Done would be a reproducible resolution for passing the peopletable record array to the shown query.