Here is a list of all namespace enums with links to the namespace documentation for each enum:

• authentication_method : database::security
• backend_match_type : database::testing
• backend_type : database::integrated
• database_types : database
• db_log_level : database::integrated
• encryption_type : database::security
• error_code : database
• field_constraint : database::orm
• health_status : database::integrated::adapters::backends, database::integrated
• join_type : database, database::query
• logger_backend_type : database::integrated::adapters
• logical_op : database::query
• match_type : database::testing
• message_type : database::protocol
• monitoring_backend_type : database::integrated::adapters
• query_operation : database::protocol
• sort_order : database
• ssl_mode : database::integrated
• thread_backend_type : database::integrated::adapters
• thread_pool_type : database::integrated