fix system.users field type.
@@ -68,7 +68,7 @@ impl UsersTable {
DataField::new("name", Vu8::to_data_type()),
DataField::new("hostname", Vu8::to_data_type()),
DataField::new("auth_type", Vu8::to_data_type()),
- DataField::new_nullable("auth_string", Vu8::to_data_type()),
+ DataField::new("auth_string", Vu8::to_data_type()),
]);
let table_info = TableInfo {
