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[SQL] Renamed ColumnStat to ColumnMetrics to avoid confusion between ColumnStats #2189

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[SQL] Renamed ColumnStat to ColumnMetrics to avoid confusion between ColumnStats #2189

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10 changes: 5 additions & 5 deletions sql/core/src/main/scala/org/apache/spark/sql/execution/debug/package.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -73,22 +73,22 @@ package object debug {
}

/**
* A collection of stats for each column of output.
* A collection of metrics for each column of output.
* @param elementTypes the actual runtime types for the output. Useful when there are bugs
* causing the wrong data to be projected.
*/
case class ColumnStat(
case class ColumnMetrics(
elementTypes: Accumulator[HashSet[String]] = sparkContext.accumulator(HashSet.empty))
val tupleCount = sparkContext.accumulator[Int](0)

val numColumns = child.output.size
val columnStats = Array.fill(child.output.size)(new ColumnStat())
val columnStats = Array.fill(child.output.size)(new ColumnMetrics())

def dumpStats(): Unit = {
println(s"== ${child.simpleString} ==")
println(s"Tuples output: ${tupleCount.value}")
child.output.zip(columnStats).foreach { case(attr, stat) =>
val actualDataTypes =stat.elementTypes.value.mkString("{", ",", "}")
child.output.zip(columnStats).foreach { case(attr, metric) =>
val actualDataTypes = metric.elementTypes.value.mkString("{", ",", "}")
println(s" ${attr.name} ${attr.dataType}: $actualDataTypes")
}
}
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