dtenedor commented on code in PR #36066:
URL: https://github.com/apache/spark/pull/36066#discussion_r844214435
##########
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/numberFormatExpressions.scala:
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@@ -98,8 +105,82 @@ case class ToNumber(left: Expression, right: Expression)
|}
""".stripMargin)
}
-
override protected def withNewChildrenInternal(
- newLeft: Expression, newRight: Expression): ToNumber = copy(left =
newLeft, right = newRight)
+ newLeft: Expression, newRight: Expression): ToNumber =
+ copy(left = newLeft, right = newRight)
}
+/**
+ * A function that converts strings to decimal values, returning NULL if the
input string fails to
+ * match the format string.
+ */
+@ExpressionDescription(
+ usage = """
+ _FUNC_(expr, fmt) - Convert string 'expr' to a number based on the string
format `fmt`.
+ Returns NULL if the string 'expr' does not match the expected format.
The format can consist
Review Comment:
SG, done.
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