execution_id bigint(20) auto_increment not_null
action_id varchar(100) not_null
result_id varchar(100) not_null
actor_id varchar(100) not_null
action_type varchar(50) not_null
status enum('success','partial','failed') not_null
execution_time_ms int(11) not_null
quality_score decimal(3,2) default null
output_type varchar(50) not_null
executed_at timestamp NULL default(current_timestamp)

--
primary execution_id
idx_actor_executions_performance actor_id executed_at DESC status

##
engine innodb
character_set utf8mb4
collate utf8mb4_unicode_ci
