Github user MaxGekk commented on a diff in the pull request: https://github.com/apache/spark/pull/21657#discussion_r201582494 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/csv/UnivocityParser.scala --- @@ -38,24 +38,28 @@ class UnivocityParser( requiredSchema: StructType, val options: CSVOptions) extends Logging { require(requiredSchema.toSet.subsetOf(dataSchema.toSet), - "requiredSchema should be the subset of schema.") + "requiredSchema should be the subset of dataSchema.") def this(schema: StructType, options: CSVOptions) = this(schema, schema, options) // A `ValueConverter` is responsible for converting the given value to a desired type. private type ValueConverter = String => Any + // This index is used to reorder parsed tokens + private val tokenIndexArr = + requiredSchema.map(f => java.lang.Integer.valueOf(dataSchema.indexOf(f))).toArray --- End diff -- ah, I see
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