[GitHub] spark pull request #18323: [SPARK-21117][SQL] Built-in SQL Function Support ...

[gatorsmile <gi...@git.apache.org>]

Github user gatorsmile commented on a diff in the pull request:

    https://github.com/apache/spark/pull/18323#discussion_r127595711
  
    --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/mathExpressions.scala ---
    @@ -1186,3 +1186,51 @@ case class BRound(child: Expression, scale: Expression)
         with Serializable with ImplicitCastInputTypes {
       def this(child: Expression) = this(child, Literal(0))
     }
    +
    +/**
    + *  Returns the bucket number into which
    + *  the value of this expression would fall after being evaluated.
    + *
    + * @param expr is the expression for which the histogram is being created
    + * @param minValue is an expression that resolves
    + *                 to the minimum end point of the acceptable range for expr
    + * @param maxValue is an expression that resolves
    + *                 to the maximum end point of the acceptable range for expr
    + * @param numBucket is an An expression that resolves to
    --- End diff --
    
    `an An` -> `an`


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