[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-3404) Regular expressions (regex) boolean operator in HQL's where clause: rlike in mysql, regexp_match in informix, ... (regression from hibernate2)

[Torsten Krah (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-3404?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=31846#action_31846 ] 

Torsten Krah commented on HHH-3404:
-----------------------------------

Looking at this one there was once a Improvement request which made it to Hibernate2 and 3 (classic).

http://opensource.atlassian.com/projects/hibernate/browse/HB-1034

Gavin accepted the patch and because of this jira issue i made the assumption, excuse me please if i was wrong, that this "was" a feature.
Looking at the classic parser it seems still supported, only the antlr based AST Parser seems not to support this syntax - thought the "new" one would support the same syntax (or more) than the classic one already support.
Sorry if this is not what i should expect.


> Regular expressions (regex) boolean operator in HQL's where clause: rlike in mysql, regexp_match in informix, ... (regression from hibernate2)
> ----------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HHH-3404
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3404
>             Project: Hibernate Core
>          Issue Type: New Feature
>          Components: query-hql
>    Affects Versions: 3.2.6
>            Reporter: Geoffrey De Smet
>
> Hibernate 2 supported the rlike boolean operator (at least for mysql): HB-1034. Hibernate3 currently doesn't.
> It turns out that most mainstream databases support regular expression patterns (independently from normal like patterns).
> Mysql: rlike
>   where a.serial rlike '\d*'
> Informix: regexp_match()
>   where regexp_match(a.serial, '\d*')
> Oracle: REGEXP_LIKE
>   where REGEXP_LIKE(a.serial, '\d*')
> There have been several forum posts asking about this feature for hibernate3 btw:
> http://forum.hibernate.org/viewtopic.php?p=2391395
> http://forum.hibernate.org/viewtopic.php?p=2375634
> etc

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