kotlin-spark-api_3.3.2_2.13/org.jetbrains.kotlinx.spark.api/takeKeys

takeKeys

@JvmName(name = "takeKeysTuple2")
inline fun <T1, T2> Dataset<Tuple2<T1, T2>>.takeKeys(): Dataset<T1>

(Kotlin-specific) Maps the Dataset to only retain the "keys" or Tuple2._1 values.

inline fun <T1, T2> Dataset<Pair<T1, T2>>.takeKeys(): Dataset<T1>

(Kotlin-specific) Maps the Dataset to only retain the "keys" or Pair.first values.

@JvmName(name = "takeKeysArity2")
inline fun <T1, T2> Dataset<Arity2<T1, T2>>.takeKeys(): Dataset<T1>

Deprecated

Use Scala tuples instead.

Replace with

(Kotlin-specific) Maps the Dataset to only retain the "keys" or Arity2._1 values.