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From "Daniel John Debrunner (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (DERBY-131) AVG precision is INTEGER instead of DOUBLE
Date Mon, 06 Nov 2006 18:09:42 GMT
     [ http://issues.apache.org/jira/browse/DERBY-131?page=all ]

Daniel John Debrunner resolved DERBY-131.

    Resolution: Invalid

The documentation for AVG includes this paragraph which seems to cover everything:

"The resulting data type is the same as the expression on which it operates (it will never
overflow). The following query, for example, returns the INTEGER 1, which might not be what
you would expect:"


> AVG precision is INTEGER instead of DOUBLE
> ------------------------------------------
>                 Key: DERBY-131
>                 URL: http://issues.apache.org/jira/browse/DERBY-131
>             Project: Derby
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions:
>            Reporter: Rainer Gemulla
> The AVG aggregator returns an INTEGER value, if the data tyoe of the respective attribute
is INTEGER. This is wrong, because the average of a set of integers is not always an integer,

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