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From "Marcel Reutegger (JIRA)" <j...@apache.org>
Subject [jira] Commented: (JCR-952) Support lower and upper case functions in "order by" clause
Date Fri, 23 Oct 2009 08:37:59 GMT

    [ https://issues.apache.org/jira/browse/JCR-952?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12769133#action_12769133

Marcel Reutegger commented on JCR-952:

> What I don't understand is, why is this issue open for 2,5 years already?

because nobody provided a patch

> And why is it a minor issue?

because this is a feature that is not part of the JCR specification.

> As far as I'm concerned, this is a major issue.

Feel free to contribute a patch.

>  Can this be easily solved?

It is actually solved already. At least partially. Using JQOM or JCR_SQL2 you already have
the ability to use a lower/upper case function in the order by clause. XPath and SQL (the
query syntax defined in JCR 1.0) do not support them yet.

See classes LowerCaseSortComparator and UpperCaseSortComparator in jackrabbit-core. The parsers
for XPath and SQL are in the module spi-commons.

> Support lower and upper case functions in "order by" clause
> -----------------------------------------------------------
>                 Key: JCR-952
>                 URL: https://issues.apache.org/jira/browse/JCR-952
>             Project: Jackrabbit Content Repository
>          Issue Type: New Feature
>          Components: jackrabbit-core, query
>    Affects Versions: 1.3
>            Reporter: James Hang
>            Priority: Minor
> The query languages should support lower- and upper-case functions within the "order
by" clause.  This would provide case-insensitive ordering of query results.
> Example:  Find all "nt:base" nodes ordered by the "foo" property, but ignoring case
> In XPath:
> //element(*,nt:base) order by fn:lower-case(@foo)
> In SQL:
> SELECT * FROM nt:base ORDER BY lower(foo)

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