The Reference guide says that you can create your own user-defined aggregates, but Derby does not have this capability. -----------------------------------------------------------------------------------------------------------------------
Key: DERBY-3550 URL: https://issues.apache.org/jira/browse/DERBY-3550 Project: Derby Issue Type: Bug Components: Documentation Reporter: Rick Hillegas Fix For: 10.4.1.0 The "Aggregates (set functions)" section of the Reference Guide says "You can also create your own aggregates to perform other set functions such as calculating the standard deviation." This is not true. See DERBY-672. This sentence confuses users. See the following email thread: http://www.nabble.com/STDDEV-for-Derby-td16038184.html#a16038184 -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.