[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-465) order by nulls first / last

[hamster (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-465?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_30329 ] 

hamster commented on HHH-465:
-----------------------------

Just FYI: PostgreSQL supports nulls last/first starting from 8.3 version.
http://postgresql.com.cn/docs/8.3/static/queries-order.html

(compare with http://postgresql.com.cn/docs/8.2/static/queries-order.html) 

Cheers,


> order by nulls first / last
> ---------------------------
>
>                 Key: HHH-465
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-465
>             Project: Hibernate3
>          Issue Type: Improvement
>          Components: core
>    Affects Versions: 3.0.3
>            Reporter: Anthony Patricio
>            Priority: Minor
>
> support of nulls first / last in order clause
> "NULLS LAST" is part of the SQL 99 standard. 
> The syntax is as follows: 
> ORDER BY [COLUMN NAME] [ASC | DESC] [NULLS FIRST | NULLS LAST] 
> In different DBs, the sorting of nulls relative to other values is handled differently. 
> PostgreSQL - Nulls are considered HIGHER than non-nulls. 
> DB2 - Higher 
> MSSQL - Lower 
> MySQL - Lower 
> Oracle - Higher 
> The following DBs have supported this functionality: 
> DB2 V7 
> Oracle 9i 
> PostgreSQL, MySQL, SQLServer do not appear to support this from what I can gather.
> see http://forum.hibernate.org/viewtopic.php?t=942176&start=0&postdays=0&postorder=asc&highlight=

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