[hibernate-issues] [Hibernate-JIRA] Updated: (HHH-1123) Cannot put more than 1000 elements in a InExpression
Strong Liu (JIRA)
noreply at atlassian.com
Mon Dec 21 05:24:31 EST 2009
[ http://opensource.atlassian.com/projects/hibernate/browse/HHH-1123?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Strong Liu updated HHH-1123:
----------------------------
Attachment: LongInElementsTest.java
Animal.hbm.xml
this restriction on oracle not only affects Criteria, but HQL also
I have created a simple test case attached (LongInElementsTest.java and Animal.hbm.xml)
> 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
> Assignee: Strong Liu
> Attachments: Animal.hbm.xml, hibernate-inexpression-oracle-3.2.patch, LongInElementsTest.java, 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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