[nhibernate-issues] [NHJIRA] Updated: (NH-2711) Support COALESCE as HQL function

[Fabio M. (JIRA) <nh...@gm...>]

     [ http://216.121.112.228/browse/NH-2711?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Fabio Maulo updated NH-2711:
----------------------------

    Summary: Support COALESCE as HQL function  (was: Support COALESCE in HQL)

The parser does not need to be changed.
Coalesce can be added as standard HQL-function, as 'extract', 'cast' and so on (see Dialect.cs) and then each dialect can override the behavior where needed.

> Support COALESCE as HQL function
> --------------------------------
>
>                 Key: NH-2711
>                 URL: http://216.121.112.228/browse/NH-2711
>             Project:  NHibernate
>          Issue Type: New Feature
>          Components: Core
>    Affects Versions: 3.1.0
>            Reporter: Ricardo Peres
>
> SQL standard defines the COALESCE operator, which should be implemented in most DBs. HQL should implement it.
> I know we can always define it in a custom Dialect, but since this is standard, I think it should be supported by the core.

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