MaxGekk commented on code in PR #48499:
URL: https://github.com/apache/spark/pull/48499#discussion_r1803825405
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/mathExpressions.scala:
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@@ -418,6 +418,47 @@ case class Acosh(child: Expression)
override protected def withNewChildInternal(newChild: Expression): Acosh =
copy(child = newChild)
}
+/**
+ * Try to convert a num from one base to another
+ *
+ * @param numExpr the number to be converted
+ * @param fromBaseExpr from which base
+ * @param toBaseExpr to which base
+ */
+@ExpressionDescription(
+ usage = "_FUNC_(num, from_base, to_base) - Convert `num` from `from_base` to
`to_base`.",
+ examples = """
+ Examples:
+ > SELECT _FUNC_('100', 2, 10);
+ 4
+ > SELECT _FUNC_(-10, 16, -10);
+ -16
Review Comment:
I believe we should show at least one example of the `NULL` result.
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