The same email, but with formatting...
(email below)
-------- Forwarded Message --------
Subject: Can a field be an array of fields?
Date: Fri, 15 Apr 2016 13:51:48 +0200
From: Bastien Latard - MDPI AG <lat...@mdpi.com>
To: solr-user@lucene.apache.org
Hi everybody!
/I described a bit what I found in another thread, but I prefer to
create a new thread for this specific question.../
*It's **possible to create an array of string by doing (incomplete example):
- in the data-conf.xml:*
<entity name="solr_articles" query="select title, abstract from articles">
<entity name="authors_array" query="select given_name, last_name
from authors WHERE article_id='${solr_articles.id}'">
<field column="title" name="title" />
<field column="abstract" name="abstract" />
<field column="given_name" name="given_name" />
<field column="last_name" name="last_name" />
</entity>
</entity>
*- in schema.xml:
*<field name="title" type="string" indexed="false" stored="true"
required="false" multiValued="true" />
<field name="abstract" type="string" indexed="false" stored="true"
required="false" multiValued="true" />
<field name="given_name" type="string" indexed="false" stored="true"
required="false" multiValued="true" />
<field name="last_name" type="string" indexed="false" stored="true"
required="false" multiValued="true" />
And this provides something like:
"docs":[
{
[...]
"given_name":["Bastien", "Matthieu", "Nino"],
"last_name":["lastname1", "lastname2", "lastname3",
"lastname4"],
[...]
*Note: there can be one author with only a last_name, and then we are
unable to tell which one it is...*
My goal would be to get this as a result:
"docs":[
{
[...]
"authors_array":
[
[
"given_name":["Bastien"],
"last_name":["lastname1"]
],
[
"last_name":["lastname2"]
],
[
"given_name":["Matthieu"],
"last_name":["lastname2"]
],
[
"given_name":["Nino"],
"last_name":["lastname4"]
],
]
[...]
Is there any way to do this?
/PS: I know that I could do '//select if(a.given_name is not null,
a.given_name ,'') as given_name, [...]//' but I would like to get an
array.../
I tried to add something like that to the schema.xml, but this doesn't
work (well, it might be of type 'array'):
<field name="authors_array" type="string" indexed="true" stored="true"
required="false" multiValued="true"/>
Kind regards,
Bastien Latard
Web engineer
--
MDPI AG
Postfach, CH-4005 Basel, Switzerland
Office: Klybeckstrasse 64, CH-4057
Tel. +41 61 683 77 35
Fax: +41 61 302 89 18
E-mail:
lat...@mdpi.com
http://www.mdpi.com/
