[ https://issues.apache.org/jira/browse/SPARK-28235?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Apache Spark reassigned SPARK-28235: ------------------------------------ Assignee: Apache Spark > Decimal sum return type > ----------------------- > > Key: SPARK-28235 > URL: https://issues.apache.org/jira/browse/SPARK-28235 > Project: Spark > Issue Type: Improvement > Components: SQL > Affects Versions: 3.0.0 > Reporter: Marco Gaido > Assignee: Apache Spark > Priority: Major > > Our implementation of decimal operations follows SQLServer behavior. As per > https://docs.microsoft.com/it-it/sql/t-sql/functions/sum-transact-sql?view=sql-server-2017, > the result of sum operation should be `DECIMAL(38, s)` while currently we > are setting it to `DECIMAL(10 + p, s)`. This means that with large datasets, > we may incur in overflow, even though we may have been able to represent the > value with higher precision and SQLServer returns correct results in that > case. -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org