[hibernate-issues] [Hibernate-JIRA] Updated: (HHH-1123) Cannot put more than 1000 elements in a InExpression

[Alexis Seigneurin (JIRA)]

     [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-1123?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Alexis Seigneurin updated HHH-1123:
-----------------------------------

    Attachment: hibernate-inexpression-oracle-3.2.patch

I just figured out that there was a bug in my original patch. When you had a multiple of 500 elements in the list, an invalid statement was generated. It looked like: property in ()

The new patch (named "hibernate-inexpression-oracle-3.2.patch") fixes that.

> Cannot put more than 1000 elements in a InExpression
> ----------------------------------------------------
>
>                 Key: HHH-1123
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-1123
>             Project: Hibernate Core
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 3.1 rc2, 3.2.0.alpha1
>         Environment: Oracle 9i
>            Reporter: Alexis Seigneurin
>         Attachments: hibernate-inexpression-oracle-3.2.patch, patch.txt
>
>   Original Estimate: 1 hour
>  Remaining Estimate: 1 hour
>
> The number of elements that we can put in a "in" expression is limited to a certain amount (1000 for Oracle, for instance). When creating a criteria query, the org.hibernate.criterion.InExpression class should split the expression into several smaller ones.
> Attached is a patch which splits the expression by slices of 500 elements. For example, if we have 1001 elements to put in the "in" expression, the result would be :
> (entity.field in (?, ?, ?...) or entity.field in (?, ?, ?...) or entity.field in (?))
> The surrounding parantheses are useful to avoid problems with other conditions (a "and" condition taking over the one of the "or" conditions).

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