Azure 数据工厂 (ADF) 映射数据流 byNames 表达式在派生列块中引发异常。实际上我需要访问单个派生列中的多个列值。
toString(byNames(['parent', 'child']))
Exception: DF-TX-115 - Variable results are allowed in assignments - EXE-0001,[390 436 536 677],
Dataflow cannot be analyzed as a graph,
https://docs.microsoft.com/en-us/azure/data-factory/data-flow-expression-functions#bynames