hibernate - Named JPQL Query and Native SQL Query produce different SUMs -

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i'm dealing following scenario:

the entity class:

@namedquery(     name = "table.getsum",     query = "select sum(s.price) table s          (s.openingdate >= :openingdate , s.closingdate <= :closingdate)" )

the ejb:

    calendar openingdate = new gregoriancalendar(year, 1, 1, 0, 0, 0);     calendar closingdate = new gregoriancalendar(year, 12, 31, 23, 59, 59);      bigdecimal salepricesum = em.createnamedquery("table.getsum", bigdecimal.class)             .setparameter("openingdate", openingdate)             .setparameter("closingdate", closingdate)             .getsingleresult();

the native sql query:

select sum(price) table openingdate >= 'yyyy-01-01t00:00:00' , closingdate <= 'yyyy-12-31t23:59:59'

but 2 sums of significant amount. drives me crazy. how can be?

i'm using hibernate 4.3.7 wildfly 8.2.0 , current mariadb on centos 7.

thank suggestion.

month parameter in constructor gregoriancalendar zero-based, messing results. docs:

month - value used set month calendar field in calendar. month value 0-based. e.g., 0 january.


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