功能
EVENT_TRACE 视图用于查询 TDSQL Boundless 内核中的事件信息。事件是一种特殊的日志类型，包含与跟踪数据进行联动的上下文信息，帮助用户深入了解系统内部操作流程。字段说明
字段名 | 类型 | 描述 |
event_timestamp | timestamp | 事件发生的时间戳 |
event_name | varchar(65535) | 事件的名称 |
tid | longlong | 事件发生的线程 ID |
trace_id | byte | 事件对应的跟踪链路的标识 ID |
span_id | longlong | 对应 SPAN 的唯一标识 |
示例
tdsql > SELECT * FROM INFORMATION_SCHEMA.EVENT_TRACE;+----------------------------+----------------------+---------+----------------------------------+---------+| event_timestamp | event_name | tid | trace_id | span_id |+----------------------------+----------------------+---------+----------------------------------+---------+| 2025-12-01 16:34:44.589668 | query end | 1048622 | 00000000000000000000000000000000 | 0 || 2025-12-01 16:34:44.589679 | closing tables | 1048622 | 00000000000000000000000000000000 | 0 || 2025-12-01 16:34:44.589685 | freeing items | 1048622 | 00000000000000000000000000000000 | 0 || 2025-12-01 16:34:44.589723 | cleaning up | 1048622 | 00000000000000000000000000000000 | 0 || 2025-12-01 16:34:45.798871 | starting | 1048622 | 00000000000000000000000000000000 | 0 || 2025-12-01 16:34:45.799009 | checking permissions | 1048622 | 00000000000000000000000000000000 | 0 || 2025-12-01 16:34:45.799031 | Opening tables | 1048622 | 00000000000000000000000000000000 | 0 || 2025-12-01 16:34:45.799151 | init | 1048622 | 00000000000000000000000000000000 | 0 || 2025-12-01 16:34:45.799156 | System lock | 1048622 | 00000000000000000000000000000000 | 0 || 2025-12-01 16:34:45.799193 | optimizing | 1048622 | 00000000000000000000000000000000 | 0 || 2025-12-01 16:34:45.799195 | optimizing | 1048622 | 00000000000000000000000000000000 | 0 || 2025-12-01 16:34:45.799202 | statistics | 1048622 | 00000000000000000000000000000000 | 0 || 2025-12-01 16:34:45.799230 | preparing | 1048622 | 00000000000000000000000000000000 | 0 || 2025-12-01 16:34:45.799251 | statistics | 1048622 | 00000000000000000000000000000000 | 0 || 2025-12-01 16:34:45.799256 | preparing | 1048622 | 00000000000000000000000000000000 | 0 || 2025-12-01 16:34:45.799265 | executing | 1048622 | 00000000000000000000000000000000 | 0 || 2025-12-01 16:34:45.803909 | end | 1048622 | 00000000000000000000000000000000 | 0 || 2025-12-01 16:34:45.803913 | query end | 1048622 | 00000000000000000000000000000000 | 0 || 2025-12-01 16:34:45.803925 | closing tables | 1048622 | 00000000000000000000000000000000 | 0 || 2025-12-01 16:34:45.803937 | freeing items | 1048622 | 00000000000000000000000000000000 | 0 || 2025-12-01 16:34:45.804007 | cleaning up | 1048622 | 00000000000000000000000000000000 | 0 |+----------------------------+----------------------+---------+----------------------------------+---------+21 rows in set (0.02 sec)
