Public signup for this instance is disabled. Go to our Self serve sign up page to request an account.
ABS(<string_expression>)
Hive/MySQL support this.
Ref: https://github.com/apache/hive/blob/4ba713ccd85c3706d195aeef9476e6e6363f1c21/ql/src/java/org/apache/hadoop/hive/ql/udf/generic/GenericUDFAbs.java#L93
[Github] Pull Request #18153 (wangyum)