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From "Kiran Ayyagari (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DIRSERVER-1965) An Index should speed up searches starting with '*'
Date Thu, 17 Jul 2014 13:59:04 GMT

    [ https://issues.apache.org/jira/browse/DIRSERVER-1965?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14064937#comment-14064937
] 

Kiran Ayyagari commented on DIRSERVER-1965:
-------------------------------------------

I don't think this index will be helpful in cases like "*abc*" , and this is the case I have
tested with.

> An Index should speed up searches starting with '*'
> ---------------------------------------------------
>
>                 Key: DIRSERVER-1965
>                 URL: https://issues.apache.org/jira/browse/DIRSERVER-1965
>             Project: Directory ApacheDS
>          Issue Type: Improvement
>          Components: ldap
>    Affects Versions: 2.0.0-M16
>         Environment: NA
>            Reporter: Ernst Bech
>            Assignee: Kiran Ayyagari
>            Priority: Blocker
>
> As of now an index will speed up searches for an exact match string and a substring ending
with a "*".
> It does NOT currently speed up searches starting with a "*", which is what we need to
be implemented.
> Example: in our unified messaging application - when we receive an incoming call - we
have to find a user whose telephone number ends with the digits signaled to us by the telephone
network.
> Let's say a user has a telephone number +49(777)12345678. The telephone network only
signals its extension 678. We thus search for *678 to get a list of possible users and by
applying some extra magic we are able to pick the right one.
> The problem is: we need to do this fast, because taking the call depends on it.



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