Hi Erick,
Thanks for the response.
What am I trying to do? :
I have a multivalued field called tags for e.g.
- {
- id: "1",
- *tags*:["solr","lucene","facet"],
*type*:"post"
},
- {
- id: "2",
- *tags*:["solr","multi-valued","grouping"],
*type*:"quote"
},
.......
Now what I want is...
grouped:
{
- type:
{
- matches: 578,
- groups:
[
-
{
- groupValue: "solr",
- doclist:
{
- numFound: 365,
- start: 0,
- docs:
[
-
{
- id: "1",
- *tags*:["solr","lucene","facet"],
*type*:"post"
},
- {
- id: "2",
- *tags*:["solr","multi-valued","grouping"],
*type*:"quote"
},
-
]
}
},
- {
- groupValue: "lucene",
- doclist:
{
- numFound: 365,
- start: 0,
- docs:
[
-
{
- id: "1",
- *tags*:["solr","lucene","facet"],
*type*:"post"
},
]
}
},...
But when I run this
*http://127.0.0.1:8983/solr/select?wt=json&group=true&group.field=tags&q=*:*
<http://127.0.0.1:8983/solr/select?wt=json&group=true&group.field=tags&q=*:*>*
it
gives me error saying "*can not use FieldCache on multivalued field: tags*".
It works fine on type field which is single valued.
Hope the example is clear enough.
-
On Thu, May 29, 2014 at 3:05 AM, Erick Erickson <erickerick...@gmail.com>
wrote:
> what would "grouping on a multivalued field" mean? Count the same doc
> separately for each value in the MV field? Use the first value?
>
> This seems similar to the problem of sorting on fields with more than
> one token, any approach I can think of will be wrong.
>
> But this smells like an XY problem. What is the use-case you're trying
> to support? If you tell us that there might be alternate approaches
> that would work OOB.
>
> To answer your question "not that I know of".
>
> Best
> Erick
>
> On Mon, May 26, 2014 at 11:28 PM, Bhoomit Vasani <bhoomit.2...@gmail.com>
> wrote:
> > Hi,
> >
> > Does latest release of solr supports grouping on a multi-valued field?
> >
> > According to this
> > https://wiki.apache.org/solr/FieldCollapsing#Known_Limitations it
> doesn't,
> > but the doc was last updated 14 months ago...
> >
> > --
> > --
> > Thanks & Regards,
> > Bhoomit Vasani | SE @ Mygola
> > WE are LIVE <http://www.mygola.com/>!
> > 91-8892949849
>
--
--
Thanks & Regards,
Bhoomit Vasani | SE @ Mygola
WE are LIVE <http://www.mygola.com/>!
91-8892949849
