Reputation: 420
is there possibility to update a new field to an existing document? For example: There is an document with several fields, e.g.
ID=99999
Field1:text
Field2:text
This document is already in the index, now I want to insert a new field to this document WITHOUT the old data:
ID=99999
Field3:text
For now, the old document will be deleted and a new document with the ID will be created. So if I now search for the ID 99999 the result will be:
ID=99999
Field3:text
I read this at the Solr Wiki
How can I update a specific field of an existing document?
I want update a specific field in a document, is that possible? I only need to index one field for >a specific document. Do I have to index all the document for this?
No, just the one document. Let's say you have a CMS and you edit one document. You will need to re-index this document only by using the the add solr statement for the whole document (not one field only).
In Lucene to update a document the operation is really a delete followed by an add. You will need >to add the complete document as there is no such "update only a field" semantics in Lucene.
So is there any solution for this? Will this function be implemented in a further version (I currently use 3.6.0). As a workaround, I thought about writing a script or an application, which will collect the existing fields, add the new field and update the whole document. But I think this will suffer performance. Do you have any other ideas?
Best regards
Upvotes: 11
Views: 28627
Reputation: 5508
I have 2 answers for you (both more or less bad):
I hope that this will help you with your problem. If you have some more questions, please ask
Upvotes: 10
Reputation: 2334
From Solr 4 onwards you can update a field in solr ....no need to reindex the entire indexes .... various modifiers are supported like ....
set – set or replace a particular value, or remove the value if null is specified as the new value add – adds an additional value to a list remove – removes a value (or a list of values) from a list removeregex – removes from a list that match the given Java regular expression inc – increments a numeric value by a specific amount (use a negative value to decrement)
example :
document
{
"id": "1",
"name" : "Solr"
"views" : "2"
}
now update with
$ curl http://localhost:8983/solr/demo/update -d '
[
{"id" : "1",
"author" : {"set":"Neal Stephenson"},
"views" : {"inc":3},
}
]'
will result into
{
"id": "1",
"name" : "Solr"
"views" : "5"
"author" : "Neal Stephenson"
}
Upvotes: 3
Reputation: 1515
It is possible to do this in Solr 4. E.g. Consider the following document
{
"id": "book123",
"name" : "Solr Rocks"
}
In order to add an author field to the document the field value would be a json object with "set" attribute and the field value
$ curl http://localhost:8983/solr/update -H 'Content-type:application/json' -d '
[
{"id" : "book123",
"author" : {"set":"The Community"}
}
]'
Your new document
$ curl http://localhost:8983/solr/get?id=book123
will be
{
"doc" : {
"id" : "book123",
"name" : "Solr Rocks"
"author": "The Community"
}
}
Set will add or replace the author field. Along with set you also have the option to increment(inc) and adding(add)
Upvotes: 9