Hi solr team . Please remove me from this list . Am getting lot of mail .
On Fri, 14 May, 2021, 8:25 am Rahul Goswami, <rahul196...@gmail.com> wrote:
> If I understand your concern correctly, you want to perform an atomic
> update only if the document already exists, else just want the update to be
> rejected (as in don't want a new document to be added)? . If that's
> correct, add "_version_" field with value 1 in your document as below :
>
> {
> "id":"1",
> "_version_":1,
> "month":{"set":1}
> }
>
> Check out optimistic concurrency : Updating Parts of Documents | Apache
> Solr Reference Guide 8.5
> <
> https://solr.apache.org/guide/8_5/updating-parts-of-documents.html#optimistic-concurrency
> >
>
> "If the content in the _version_ field is equal to '1', then the document
> must simply exist. In this case, no version matching occurs, but if the
> document does not exist, the updates will be rejected."
>
> - Rahul
>
> On Thu, May 13, 2021 at 9:55 PM alex noname <mrfun.ch...@gmail.com> wrote:
>
> > Hi everyone,
> >
> > I'm doing some solr update coding and the solr version I'm using is 8.5.1
> >
> > So far I can successfully do a partial update by sending
> >
> > {
> > "id":"1",
> > "month":{"set":1}
> > }
> >
> > to the /update handler. This way I can update the month filed to be 1 for
> > record with id 1.
> >
> >
> > *But the thing is, if there's no existing record with id 1, a new record
> > will be created with provided id and month info.*
> >
> > One workaround is, before issuing an update, I do a solr query for id:1,
> > only when the result is not empty then I do the update.
> >
> > Just want to know, if there's a better way to do this?
> >
> >
> >
> > Thanks
> >
>
