Even if it's not strictly needed anymore, could it improve performance?
Right now I need to use commit() right after this dual operation to
make sure no reader is ever going to miss it, but if it was atomic I
could have avoided the commit and just trust that "at some time later"
it will be auto-committed: exact moment would be out of my control,
but even so the view on index wouldn't have a chance to miss some
documents.

Regards,
Sanne

On Sun, Jan 10, 2010 at 10:04 PM, Michael McCandless
<luc...@mikemccandless.com> wrote:
> I think there no particular demand...
>
> But: why not just separately delete by query, then add?
>
> Back when IW had autoCommit=true, it was compelling to have an atomic
> update, but now with only autoCommit=false, the app has full control
> over visibility to readers, so do we even need update-by-term anymore?
>
> Mike
>
> On Sun, Jan 10, 2010 at 2:13 PM, Sanne Grinovero
> <sanne.grinov...@gmail.com> wrote:
>> If the demand is the problem:
>> I would really love that: in most scenarios a single term is not
>> enough to identify a Document: I need at least two so I use usually
>> remove-by-query first and then add again.
>> This sometimes needs some application level lock to make the changes 
>> consistent.
>>
>> Sanne
>>
>> 2010/1/10 Mark Miller <markrmil...@gmail.com>:
>>> Any reason we don't offer update doc by query along with term?
>>>
>>> Its easy enough to implement in the same manner - is there some sort of
>>> gotchya with this, or is it just because there has been no demand yet?
>>>
>>> --
>>> - Mark
>>>
>>> http://www.lucidimagination.com
>>>
>>>
>>>
>>>
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-- 
Sanne Grinovero
http://in.relation.to/Bloggers/Sanne
Sourcesense - making sense of Open  Source: http://www.sourcesense.com

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