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http://jira.xwiki.org/jira/browse/XWIKI-2083?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_22387
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Sergiu Dumitriu commented on XWIKI-2083:
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The rules for DBList should be:
* If no classname, id or value fields are selected, return a query that return
no rows.
* If only the classname is provided, select all document names which have an
object of that type.
* If only one of id and value is provided, select just one column.
* If id = value, select just one column.
* If no classname is provided, assume the fields are document properties.
* If the document is not used at all, don't put it in the query.
* If the object is not used at all, don't put it in the query.
> Improve the way DBList and DBTreeList generate queries
> ------------------------------------------------------
>
> Key: XWIKI-2083
> URL: http://jira.xwiki.org/jira/browse/XWIKI-2083
> Project: XWiki Core
> Issue Type: Improvement
> Components: Core
> Affects Versions: 1.3 M1
> Reporter: Sergiu Dumitriu
> Priority: Minor
>
> The current way of generating queries based on the classname, idField,
> valueField and parentField properties has some issues:
> - Does not correctly work with missing values;
> - Generates unoptimised queries;
> - Cannot be properly used to select document properties.
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