Didn't we stop storing members of a group that way a long time ago?
(implying the LIKE queries are strictly for backward compat)

On 09/18/2014 11:14 AM, [email protected] wrote:
> Whenever you do a LIKE you need to check your indexes in your DB to tune the 
> query to be fast.
> 
> Thanks
> -Vincent
> 
> On 18 Sep 2014 at 11:00:36, Thomas Mortagne 
> ([email protected](mailto:[email protected])) wrote:
> 
>> It's a new implementation with a lot of caching but the model did not 
>> changed.
>>
>> On Thu, Sep 18, 2014 at 10:47 AM, Paul Libbrecht wrote:
>>>
>>> Dear XWiki developers,
>>>
>>> again and again I see code in our Curriki (quite some of which has been 
>>> written by XWiki experts) that employ LIKE hql queries to evaluate if an 
>>> XWikiRights object applied to a give group or user.
>>>
>>> I has happened often that some such queries kill our production application 
>>> server; in the meantime we've managed to remove them. However, there are 
>>> many more and it really appears inefficient to me.
>>>
>>> Is the "new xwiki rights model" that has been talked about here and there 
>>> an enhancement in this respect?
>>> (it is in XWiki 6 or so if I remember well, we are still at 3.5).
>>> Simply splitting the addresses of the xwikirights object in the DB could 
>>> leverage effectively an index which these LIKE queries fail to do.
>>>
>>> thanks in advance.
>>>
>>> Paul
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