You are viewing a plain text version of this content. The canonical link for it is here.
Posted to solr-user@lucene.apache.org by e_...@videotron.ca on 2018/10/23 11:38:05 UTC
Join across shards?
Hi all,<signaturebeforequotedtext></signaturebeforequotedtext><signatureafterquotedtext></signatureafterquotedtext>
Sorry if the question was already covered.
We are using joins across documents with the limitation of having the documents to be joined sitting on the same shard. Is there a way around this limitation and even join across collections? Are there plans to support this out of the box?
Thanks!
Eric Briere.
Re: Join across shards?
Posted by Erick Erickson <er...@gmail.com>.
In addition to Vadim's comment, Solr Streaming _can_
work across shards and even across collections.
Depending on your use-case this may work for you.
Best,
Erick
On Tue, Oct 23, 2018 at 6:41 AM Vadim Ivanov
<va...@spb.ntk-intourist.ru> wrote:
>
> Hi,
> You CAN join across collections with runtime "join".
> The only limitation is that FROM collection should not be sharded and joined
> data should reside on one node.
> Solr cannot join across nodes (distributed search is not supported).
> Though using streaming expressions it's possible to do various things...
> --
> Vadim
>
> -----Original Message-----
> From: e_briere@videotron.ca [mailto:e_briere@videotron.ca]
> Sent: Tuesday, October 23, 2018 2:38 PM
> To: solr-user@lucene.apache.org
> Subject: Join across shards?
>
> Hi
> all,<signaturebeforequotedtext></signaturebeforequotedtext><signatureafterqu
> otedtext></signatureafterquotedtext>
>
> Sorry if the question was already covered.
>
> We are using joins across documents with the limitation of having the
> documents to be joined sitting on the same shard. Is there a way around this
> limitation and even join across collections? Are there plans to support this
> out of the box?
>
> Thanks!
>
> Eric Briere.
>
RE: Join across shards?
Posted by Vadim Ivanov <va...@spb.ntk-intourist.ru>.
Hi,
You CAN join across collections with runtime "join".
The only limitation is that FROM collection should not be sharded and joined
data should reside on one node.
Solr cannot join across nodes (distributed search is not supported).
Though using streaming expressions it's possible to do various things...
--
Vadim
-----Original Message-----
From: e_briere@videotron.ca [mailto:e_briere@videotron.ca]
Sent: Tuesday, October 23, 2018 2:38 PM
To: solr-user@lucene.apache.org
Subject: Join across shards?
Hi
all,<signaturebeforequotedtext></signaturebeforequotedtext><signatureafterqu
otedtext></signatureafterquotedtext>
Sorry if the question was already covered.
We are using joins across documents with the limitation of having the
documents to be joined sitting on the same shard. Is there a way around this
limitation and even join across collections? Are there plans to support this
out of the box?
Thanks!
Eric Briere.