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  1. OpenJPA
  2. OPENJPA-2861

select sum(CASE x WHEN x THEN 1 ELSE 0 ) returns String instead of Long.

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 3.1.2
    • Fix Version/s: 3.2.0
    • Component/s: kernel
    • Labels:
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      Description

      It seems that a few operations in JDBCExpressionFactory often calls getLiteralRawString which destroys the information about any real types in a query and replaces it with a Raw which is always of type java.lang.String.

      This breaks the following query, which wrongly returns a string instead of a Long:

      final TypedQuery<Long> q 
         = em.createQuery("select SUM(CASE ae.stringVal WHEN 'bare' THEN 1 ELSE 0 END) from AggEntity AS ae", Long.class);
      final Long sumC = q.getSingleResult();

      This only affects us since I fixed UnaryOp to not return the native JDBC vendor type of a given column but uses the val.getType()

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            • Assignee:
              struberg Mark Struberg
              Reporter:
              struberg Mark Struberg
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