diff options
| -rw-r--r-- | sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/Rand.scala | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/Rand.scala b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/Rand.scala index 0bde621602..38f836f0a1 100644 --- a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/Rand.scala +++ b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/Rand.scala @@ -17,11 +17,18 @@ package org.apache.spark.sql.catalyst.expressions +import java.util.Random import org.apache.spark.sql.catalyst.types.DoubleType + case object Rand extends LeafExpression { - def dataType = DoubleType - def nullable = false - def references = Set.empty + override def dataType = DoubleType + override def nullable = false + override def references = Set.empty + + private[this] lazy val rand = new Random + + override def eval(input: Row = null) = rand.nextDouble().asInstanceOf[EvaluatedType] + override def toString = "RAND()" } |