Github user adrian-wang commented on a diff in the pull request:
https://github.com/apache/spark/pull/6783#discussion_r32378007
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/math.scala
---
@@ -254,3 +255,46 @@ case class Pow(left: Expression, right: Expression)
"""
}
}
+
+case class Pmod(left: Expression, right: Expression) extends
BinaryArithmetic {
+
+ override def symbol: String = "pmod"
+
+ override def toString: String = s"pmod($left, $right)"
+
+ protected def checkTypesInternal(t: DataType) =
+ TypeUtils.checkForNumericExpr(t, "pmod")
+
+ override lazy val resolved =
+ childrenResolved && checkInputDataTypes().isSuccess &&
!DecimalType.isFixed(dataType)
+
+ protected override def evalInternal(left: Any, right: Any) =
+ dataType match {
+ case IntegerType => pmod(left.asInstanceOf[Integer],
right.asInstanceOf[Integer] )
+ case ShortType => pmod(left.asInstanceOf[Short],
right.asInstanceOf[Short] )
+ case FloatType => pmod(left.asInstanceOf[Float],
right.asInstanceOf[Float] )
+ case DoubleType => pmod(left.asInstanceOf[Double],
right.asInstanceOf[Double] )
+ case _ => null
--- End diff --
however I think it is ok to leave Decimal unsupported here.:P
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