问题 Below is the kusto query: ADFActivityRun | where PipelineName contains "MyPipeline" | where OperationName == "Failed" | order by TimeGenerated desc | take 1 The Output column gives below result: "{ ""name"": ""varFileNames"", ""value"": [ { ""name"": ""Z400_EEE_20191110_ERR.txt"", ""type"": ""File"" }, { ""name"": ""Z400_CCC_20191119_ERR.txt"", ""type"": ""File"" }, { ""name"": ""Z400_DDD_20191121_ERR.txt"", ""type"": ""File"" }, { ""name"": ""Z400_EEE_20191122_ERR.txt"", ""type"": ""File"" }