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https://issues.apache.org/jira/browse/OPENJPA-2862?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mark Struberg resolved OPENJPA-2862.
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Resolution: Fixed
> select SUM doesn't return spec defined types
> --------------------------------------------
>
> Key: OPENJPA-2862
> URL: https://issues.apache.org/jira/browse/OPENJPA-2862
> Project: OpenJPA
> Issue Type: Bug
> Components: kernel
> Affects Versions: 3.1.2
> Reporter: Mark Struberg
> Assignee: Mark Struberg
> Priority: Major
> Fix For: 3.1.3
>
>
> As per spec section 4.8.5 Aggregate Functions in the SELECT Clause we need
> to handle a few types in a special way
> {noformat}
> SUM returns Long when applied to state fields of integral types (other than
> BigInteger); Dou- ble when applied to state fields of floating point types;
> BigInteger when applied to state fields of type BigInteger; and BigDecimal
> when applied to state fields of type BigDecimal.
> {noformat}
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