[Hibernate-issues] [Hibernate-JIRA] Closed: (HB-350) Mysql dialect produced sql subquery.

[<leg...@at...>]

Message:

   The following issue has been closed.

   Resolver: Gavin King
       Date: Tue, 23 Sep 2003 9:46 AM

Please read the Hibernate documentation.
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View the issue:

  http://opensource.atlassian.com/projects/hibernate/secure/ViewIssue.jspa?key=HB-350


Here is an overview of the issue:
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        Key: HB-350
    Summary: Mysql dialect produced sql subquery.
       Type: Bug

     Status: Closed
   Priority: Major
 Resolution: REJECTED

    Project: Hibernate2
 Components: 
             core
   Versions:
             2.0.3

   Assignee: 
   Reporter: Krzysztof Dabrowski

    Created: Sun, 21 Sep 2003 9:43 AM
    Updated: Tue, 23 Sep 2003 9:46 AM
Environment: Resin 2.1.10, Mysql 4.0.15 InnoDb

Description:
I've created the following hql query:

"from itm in class pl.elysium.boxlife.hibernate.Item where size(itm.ItemFolders)=0"

Ant this query produced the following SQL:

"select itm.itm_id as x0_0_ from item itm where ((select count(*) from item_itemfolder_binding itemfold0_ where itm.itm_id=itemfold0_.itm_id)=0 )"

As you probably now, MySQL does not have subselects so it producted the following error:

"ERROR 1064: You have an error in your SQL syntax.  Check the manual that corresponds to your MySQL server version for the right syntax to use near 'select count(*) from item_itemfolder_binding itemfold0_ where i"

Shouldn't it rather use other methods to perform the size() in case of Mysql dialect?





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