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From "Fay Wang (JIRA)" <j...@apache.org>
Subject [jira] Updated: (OPENJPA-612) Add support for calculating update value in QueryImpl.updateInMemory
Date Wed, 28 May 2008 18:39:44 GMT

     [ https://issues.apache.org/jira/browse/OPENJPA-612?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Fay Wang updated OPENJPA-612:
-----------------------------

    Attachment: openjpa0528a.patch

I have streamlined the code and added string function supports to the updateInMemory. The
following queries have been tested against Informix backend:

query="update DeptBeanAno d set d.name = CONCAT(d.name, '288') where d.reportsTo.no = ?1"
query="update DeptBeanAno d set d.name = SUBSTRING(d.name, 1, LENGTH(d.name)) where d.reportsTo.no
= ?1"
query="update DeptBeanAno d set d.name = UPPER(d.name) where d.reportsTo.no = ?1"
query="update DeptBeanAno d set d.name = LOWER(d.name) where d.reportsTo.no = ?1"
query="update DeptBeanAno d set d.name = TRIM(LEADING ' ' FROM d.name) where d.reportsTo.no
= ?1"
query="update DeptBeanAno d set d.name = TRIM(TRAILING ' ' FROM d.name) where d.reportsTo.no
= ?1"
query="update DeptBeanAno d set d.name = TRIM(' ' FROM d.name) where d.reportsTo.no = ?1"
query="update DeptBeanAno d set d.name = SUBSTRING(d.name, 1, LOCATE(d.name, 'e', 1)) where
d.reportsTo.no = ?1"
query="update DeptBeanAno d set d.idx = LOCATE(d.name, 'e', 3) where d.reportsTo.no = ?1"


> Add support for calculating update value in QueryImpl.updateInMemory
> --------------------------------------------------------------------
>
>                 Key: OPENJPA-612
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-612
>             Project: OpenJPA
>          Issue Type: Bug
>            Reporter: Fay Wang
>         Attachments: openjpa.patch, openjpa0526.patch, openjpa0528a.patch
>
>
> Since Informix does not support update with in/exists subquery in the where clause, when
doing the bulk update against informix, e.g., 
>      "update DeptBeanAno d set d.budget = (d.budget * ?1 + ?2) where d.reportsTo.no =
?3"
>  
> we encounter the error of "only-update-primitives" during updateInMemory. 
>      The attached patch fixes this problem by beefing up the support for arithmetic calcuation
of the update value for updateInMemory.

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