Richard Zowalla created OPENJPA-3049:
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Summary: JPQL arithmetic ranks BigDecimal above Double, unlike the
numeric promotion of the specification
Key: OPENJPA-3049
URL: https://issues.apache.org/jira/browse/OPENJPA-3049
Project: OpenJPA
Issue Type: Sub-task
Reporter: Richard Zowalla
JPQL arithmetic takes its result type from {{Filters.promote}}, which returns
BigDecimal when either operand is BigDecimal. The specification promotes
BigDecimal with Double or Float to Double or Float. Since OPENJPA-3035 the
criteria API follows the specification, so the same query written in JPQL and
with the criteria API can return different Java types.
Changing it in JPQL also affects decimal literals, which JPQL parses as
BigDecimal, so {{n.floatField * 1.5}} would become a Float. The migration notes
of 4.2 mention the difference.
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