在两个指标之间应用 JOIN 时出现语法错误

Question

编写第一个 MQL 查询来实现以下功能：

1. 从具有 COUNTRY 字段的指标“logging.googleapis.com/user/count_verify_country”读取日志
2. 从另一个具有字段的指标“logging.googleapis.com/user/verify_completed”读取日志 留言
3. 现在，将所有不同国家/地区的所有出现 MESSAGE 的事件计为“成功”

注意：两个日志都有一个公共字段 flowExecutionId，其值对于每个事务都保持相同。

fetch logging.googleapis.com/user/count_verify_country
| filter has(jsonPayload.requestBody.actors.client.verify.country)
| group_by [jsonPayload.requestBody.actors.client.daVinciFlow.flowExecutionId], [country: any(jsonPayload.requestBody.actors.client.verify.country)]
| join (
    fetch logging.googleapis.com/user/verify_completed
    | filter jsonPayload.requestBody.success.message == "Verify Completed"
    | group_by [jsonPayload.requestBody.actors.client.daVinciFlow.flowExecutionId], [success_count: count_true()]
) on jsonPayload.requestBody.actors.client.daVinciFlow.flowExecutionId
| outer_join
| group_by [country], [total_success: sum(success_count)]```

Getting error: Line 5: Expected: ')'. Instead found: 'logging'.

Answer 1

您提到您要将所有出现的 MESSAGE 计为 SUCCESS。但是当您过滤 verify_completed 日志时，您会给出“Verify Completed”。因此，请尝试在线路过滤器 SUCCESS

 处使用 

Verify Completed

 代替 

jsonPayload.requestBody.success.message == "SUCCESS"，并且不需要 external_join。

fetch logging.googleapis.com/user/count_verify_country
| filter has(jsonPayload.requestBody.actors.client.verify.country)
| group_by [jsonPayload.requestBody.actors.client.daVinciFlow.flowExecutionId], [country: any(jsonPayload.requestBody.actors.client.verify.country)]
| join (
    fetch logging.googleapis.com/user/verify_completed
    | filter jsonPayload.requestBody.success.message == "SUCCESS"
    | group_by [jsonPayload.requestBody.actors.client.daVinciFlow.flowExecutionId], [success_count: count()]
) on jsonPayload.requestBody.actors.client.daVinciFlow.flowExecutionId
| group_by [country], [total_success: sum(success_count)]

请参阅此官方 MQL 示例文档了解更多信息。