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From "Alex Parvulescu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (OAK-347) QueryEngine 'like' interpretation error
Date Wed, 03 Oct 2012 11:24:08 GMT

    [ https://issues.apache.org/jira/browse/OAK-347?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13468487#comment-13468487
] 

Alex Parvulescu commented on OAK-347:
-------------------------------------

first draft in with revision 1393400.
                
> QueryEngine 'like' interpretation error
> ---------------------------------------
>
>                 Key: OAK-347
>                 URL: https://issues.apache.org/jira/browse/OAK-347
>             Project: Jackrabbit Oak
>          Issue Type: Bug
>          Components: core
>            Reporter: Alex Parvulescu
>
> This is not a parsing error, it affects the Query string -> Query transformation mechanism.
> Currently there is no 'like' support in the FilterImpl [0] and the conditions get turned
into invalid string range conditions [1].
> It would appear that 
> {{ WHERE jcr:path LIKE 'testroot/%'}}
> gets transformed into the following query filter condition:
> {{ jcr:path has to be between /testroot/ and /testroot0 inclusive }}
> which has no way of working 
> (except for the internal LikePattern implementation which apparently knows all the tricks).
> The failing test case is FulltextQueryTest#testFulltextSimpleSQL1
> [0] http://svn.apache.org/viewvc/jackrabbit/oak/trunk/oak-core/src/main/java/org/apache/jackrabbit/oak/query/index/FilterImpl.java?view=markup#l220
> [1] http://svn.apache.org/viewvc/jackrabbit/oak/trunk/oak-core/src/main/java/org/apache/jackrabbit/oak/query/ast/ComparisonImpl.java?view=markup#l131

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