On Fri, Sep 18, 2009 at 12:30 AM, siping liu <siping...@hotmail.com> wrote:

>
> I understand there's no "update" in Solr/lucene, it's really delete+insert.
> Is there anyway to get a Document's insert time stamp, w/o explicitely
> creating such a data field in the document? If so, how can I query it, for
> instance "get all documents that are older than 24 hours"? Thanks.
>

No, that is not possible without creating such a field. You don't have to
explicitly send a timestamp value. The following will add the value of NOW
when each document is indexed:

<field name="timestamp" type="date" indexed="true" stored="true"
default="NOW" multiValued="false"/>

-- 
Regards,
Shalin Shekhar Mangar.

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