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Zheng Shao commented on HIVE-656: --------------------------------- MySQL mod function (which returns negative numbers when the first number is negative) http://dev.mysql.com/doc/refman/5.0/en/mathematical-functions.html#function_mod > Add a POSITIVE_MOD function > --------------------------- > > Key: HIVE-656 > URL: https://issues.apache.org/jira/browse/HIVE-656 > Project: Hadoop Hive > Issue Type: New Feature > Reporter: Zheng Shao > > There are a lot of cases people want to get a positive modulo result. > For example, people want to bucket the data into 10 buckets. They use the > hash code in Hive (based on Java) which can return a negative number. Then > they need this POSITIVE_MOD(a, b) to return the results. > Otherwise they can still do it but it will be very verbose: > {code} > ((hash(xxx) % 10) + 10) % 10 > {code} -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.