Github user cloud-fan commented on a diff in the pull request: https://github.com/apache/spark/pull/7003#discussion_r33224283 --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/InternalRow.scala --- @@ -19,14 +19,54 @@ package org.apache.spark.sql.catalyst import org.apache.spark.sql.Row import org.apache.spark.sql.catalyst.expressions._ +import org.apache.spark.unsafe.types.UTF8String /** * An abstract class for row used internal in Spark SQL, which only contain the columns as * internal types. */ abstract class InternalRow extends Row { + + // default implementation for codegen (for a Row which does not have those types) + override def getBoolean(i: Int): Boolean = throw new UnsupportedOperationException + override def getByte(i: Int): Byte = throw new UnsupportedOperationException + override def getShort(i: Int): Short = throw new UnsupportedOperationException + override def getInt(i: Int): Int = throw new UnsupportedOperationException + override def getLong(i: Int): Long = throw new UnsupportedOperationException + override def getFloat(i: Int): Float = throw new UnsupportedOperationException + override def getDouble(i: Int): Double = throw new UnsupportedOperationException + + // This is only use for test + override def getString(i: Int): String = getAs[UTF8String](i).toString + + // These expensive API should not be used internally. + override def getDecimal(i: Int): java.math.BigDecimal = throw new UnsupportedOperationException + override def getDate(i: Int): java.sql.Date = throw new UnsupportedOperationException + override def getTimestamp(i: Int): java.sql.Timestamp = throw new UnsupportedOperationException + override def getSeq[T](i: Int): Seq[T] = throw new UnsupportedOperationException + override def getList[T](i: Int): java.util.List[T] = throw new UnsupportedOperationException + override def getMap[K, V](i: Int): scala.collection.Map[K, V] = + throw new UnsupportedOperationException + override def getJavaMap[K, V](i: Int): java.util.Map[K, V] = + throw new UnsupportedOperationException + override def getStruct(i: Int): InternalRow = throw new UnsupportedOperationException + override def getAs[T](fieldName: String): T = throw new UnsupportedOperationException + override def getValuesMap[T](fieldNames: Seq[String]): Map[String, T] = --- End diff -- should we add `final` to make sure all `InternalRow` implementations can not define these functions?
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