[DOCS] Clarify round mode for format_number function

roxannemoslehi · Roxanne Moslehi · commit 1baf05922eaf · 2017-03-24T16:47:57.000-04:00
diff --git a/sql/core/src/main/scala/org/apache/spark/sql/functions.scala b/sql/core/src/main/scala/org/apache/spark/sql/functions.scala
@@ -2191,8 +2191,8 @@ object functions {
   }
 
   /**
-   * Formats numeric column x to a format like '#,###,###.##', rounded to d decimal places,
-   * and returns the result as a string column.
+   * Formats numeric column x to a format like '#,###,###.##', rounded to d decimal places
+   * with HALF_EVEN round mode, and returns the result as a string column.
    *
    * If d is 0, the result has no decimal point or fractional part.
    * If d is less than 0, the result will be null.

Original file line number	Diff line number	Diff line change
`@@ -2191,8 +2191,8 @@ object functions {`
`2191`	`2191`	`}`
`2192`	`2192`
`2193`	`2193`	`/**`
`2194`		`- * Formats numeric column x to a format like '#,###,###.##', rounded to d decimal places,`
`2195`		`- * and returns the result as a string column.`
	`2194`	`+ * Formats numeric column x to a format like '#,###,###.##', rounded to d decimal places`
	`2195`	`+ * with HALF_EVEN round mode, and returns the result as a string column.`
`2196`	`2196`	`*`
`2197`	`2197`	`* If d is 0, the result has no decimal point or fractional part.`
`2198`	`2198`	`* If d is less than 0, the result will be null.`