[hibernate-issues] [Hibernate-JIRA] Created: (HHH-2822) timestamp extraction functions do not work in SAPDBDialect

[Yossi Tamari (JIRA)]

timestamp extraction functions do not work in SAPDBDialect
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                 Key: HHH-2822
                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2822
             Project: Hibernate3
          Issue Type: Bug
          Components: query-hql
    Affects Versions: 3.2.5, 3.2.4.sp1, 3.2.4, 3.2.3, 3.2.2, 3.2.1, 3.2.0.ga, 3.2.0.cr5, 3.2.0.cr4, 3.2.0.cr3, 3.2.0.cr2, 3.2.0 cr1, 3.1.3, 3.2.0.alpha2, 3.2.0.alpha1, 3.1.2, 3.1.1, 3.1, 3.1 rc3, 3.1 rc2, 3.1 rc 1, 3.1 beta 2, 3.1 beta 1, 3.0.5, 3.0.4, 3.0.3, 3.0.2, 3.0.1, 3.0 final, 3.0 rc 1, 3.0 beta 4, 3.0 beta 3, 3.0 beta 2, 3.0 beta 1, 3.0 alpha
         Environment: SAPDB 7.6
            Reporter: Yossi Tamari
            Priority: Minor


There is no registerFunction in the SAPDBDialect for the date extraction SQL functions (extract, day, hour...). Therefore, the inherited registration from Dialect are in effect. However, they all map to extract, which is no supported in SAPDB.
The correct implementation is to register the following functions in SAPDBDialect.java:

registerFunction( "second", new SQLFunctionTemplate(Hibernate.INTEGER, "second(?1)") );
registerFunction( "minute", new SQLFunctionTemplate(Hibernate.INTEGER, "minute(?1)") );
registerFunction( "hour", new SQLFunctionTemplate(Hibernate.INTEGER, "hour(?1)") );
registerFunction( "day", new SQLFunctionTemplate(Hibernate.INTEGER, "day(?1)") );
registerFunction( "month", new SQLFunctionTemplate(Hibernate.INTEGER, "month(?1)") );
registerFunction( "year", new SQLFunctionTemplate(Hibernate.INTEGER, "year(?1)") );

registerFunction( "extract", new SQLFunctionTemplate(Hibernate.INTEGER, "?1(?3)") );


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