You may be better off indexing each element of the array as a solr document,
with a group field and a disease field. Then you can easily and efficiently
add new diseases. Then to query a row, you query for the group field having
the desired group.
If possible, index the array as being sparse - no document for a disease if
it is not present for that group.
-- Jack Krupansky
-----Original Message-----
From: David Philip
Sent: Saturday, October 12, 2013 9:56 PM
To: solr-user@lucene.apache.org
Subject: Re: Storing 2 dimension array in Solr
Hi Erick, Yes it is. But the columns here are dynamically and very
frequently added.They can increase upto 1 million right now. So, 1 document
with 1 million dynamic fields, is it fine? Or any other approach?
While searching through web, I found that docValues are column oriented.
http://searchhub.org/2013/04/02/fun-with-docvalues-in-solr-4-2/
However, I did not understand, how to use docValues to add these columns.
What is the recommended approach?
Thanks - David
On Sun, Oct 13, 2013 at 3:33 AM, Erick Erickson
<erickerick...@gmail.com>wrote:
Isn't this just indexing each row as a separate document
with a suitable ID "groupN" in your example?
On Sat, Oct 12, 2013 at 2:43 PM, David Philip
<davidphilipshe...@gmail.com>wrote:
> Hi Erick,
>
> We have set of groups as represented below. New columns (diseases as
in
> below matrix) keep coming and we need to add them as new column. To that
> column, we have values such as 1 or 2 or 3 or 4 (exist, slight, na,
> notfound) for respective groups.
>
> While querying we need to get the entire row for group:"group1". We
will
> not be searching on columns(*_disease) values, index=false but stored is
> true.
>
> for ex: we use, get group:"group1" and we need to get the entire row-
> exist,slight, not found. Hoping this explanation is clearer.
>
> disease1 disease2 disease3
> group1 exist slight not found
> groups2 slight not found exist
> group3 slight exist
> groupK - na exist
>
>
>
> Thanks - David
>
>
>
>
>
> On Sat, Oct 12, 2013 at 11:39 PM, Erick Erickson <
erickerick...@gmail.com
> >wrote:
>
> > David:
> >
> > This feels like it may be an XY problem. _Why_ do you
> > want to store a 2-dimensional array and what
> > do you want to do with it? Maybe there are better
> > approaches.
> >
> > Best
> > Erick
> >
> >
> > On Sat, Oct 12, 2013 at 2:07 AM, David Philip
> > <davidphilipshe...@gmail.com>wrote:
> >
> > > Hi,
> > >
> > > I have a 2 dimension array and want it to be persisted in solr.
> > > How
> > can I
> > > do that?
> > >
> > > Sample case:
> > >
> > > disease1 disease2 disease3
> > > group1 exist slight not found
> > > groups2 slight not found exist
> > > group2 slight exist
> > >
> > > exist-1 not found - 2 slight-3 .. can be stored like this also.
> > >
> > > Note: This array has frequent updates. Every time new disease get's
> > added
> > > and I have to add description about that disease to all groups. And
at
> > > query time, I will do get by row - get by group only group = group2
> row.
> > >
> > > Any suggestion on how I can achieve this? I am thankful to the
> > > forum
> for
> > > replying with patience, on achieving this, i will blog and will
> > > share
> it
> > > with all.
> > >
> > > Thanks - David
> > >
> >
>
