2022-08-26 19:07:59 +00:00
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---
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slug: /zh/operations/system-tables/opentelemetry_span_log
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---
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2021-10-27 02:28:46 +00:00
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# system.opentelemetry_span_log {#system_tables-opentelemetry_span_log}
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包含已执行查询的[跟踪范围](https://opentracing.io/docs/overview/spans/)的信息.
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列信息:
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- `trace_id` ([UUID](../../sql-reference/data-types/uuid.md)) — 执行的查询的跟踪ID.
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- `span_id` ([UInt64](../../sql-reference/data-types/int-uint.md)) — `跟踪 跨度` ID.
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- `parent_span_id` ([UInt64](../../sql-reference/data-types/int-uint.md)) — 父级`跟踪 跨度` ID.
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- `operation_name` ([String](../../sql-reference/data-types/string.md)) — 操作的名称.
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- `start_time_us` ([UInt64](../../sql-reference/data-types/int-uint.md)) — `跟踪 跨度` 开始时间 (微秒).
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- `finish_time_us` ([UInt64](../../sql-reference/data-types/int-uint.md)) — `跟踪 跨度 结束时间 (微秒).
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- `finish_date` ([Date](../../sql-reference/data-types/date.md)) — `跟踪 跨度` 完成日期.
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- `attribute.names` ([Array](../../sql-reference/data-types/array.md)([String](../../sql-reference/data-types/string.md))) — [属性](https://opentelemetry.io/docs/go/instrumentation/#attributes) 名称取决于 `跟踪 跨度`. 它们是根据[OpenTelemetry](https://opentelemetry.io/)标准中的建议填写的.
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- `attribute.values` ([Array](../../sql-reference/data-types/array.md)([String](../../sql-reference/data-types/string.md))) — 属性值取决于 `跟踪 跨度`. 它们是根据 `OpenTelemetry` 标准中的建议填写的.
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**示例**
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查询:
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``` sql
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SELECT * FROM system.opentelemetry_span_log LIMIT 1 FORMAT Vertical;
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```
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结果:
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``` text
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Row 1:
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──────
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trace_id: cdab0847-0d62-61d5-4d38-dd65b19a1914
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span_id: 701487461015578150
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parent_span_id: 2991972114672045096
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operation_name: DB::Block DB::InterpreterSelectQuery::getSampleBlockImpl()
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start_time_us: 1612374594529090
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finish_time_us: 1612374594529108
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finish_date: 2021-02-03
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attribute.names: []
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attribute.values: []
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```
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**另请参阅**
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2022-08-29 17:59:51 +00:00
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- [OpenTelemetry](../../operations/opentelemetry.mdx)
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