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Scala 数据帧的Spark隐式$_Scala_Apache Spark_Implicit Conversion - Fatal编程技术网
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  • scala/
  • Scala 数据帧的Spark隐式$

Scala 数据帧的Spark隐式$

scala apache-spark

Scala 数据帧的Spark隐式$,scala,apache-spark,implicit-conversion,Scala,Apache Spark,Implicit Conversion,在sqlContext.implicits.\uu中，它是否定义$“string”来表示对父数据帧列的数据帧调用？具体地说，当我看到如下情况时，我感到困惑： import sqlContext.implicits._ df.where($"type".isin("type1","type2") and $"status".isin("completed","inprogress")) 如果你看到 类SQLContext.implicits$.StringToColumn 将$“col name

在
sqlContext.implicits.\uu
中，它是否定义$“string”来表示对父数据帧列的数据帧调用？具体地说，当我看到如下情况时，我感到困惑：

import sqlContext.implicits._
df.where($"type".isin("type1","type2") and $"status".isin("completed","inprogress"))
如果你看到

类SQLContext.implicits$.StringToColumn

将$“col name”转换为列