I have a hard envisioning a case where a document would be indexed without a unique identifier. While it *can* be done with just Lucene, I've never seen a case where a unique key wasn't just a great idea but a real necessity.

        Erik


On Feb 24, 2007, at 6:10 PM, Ryan McKinley (JIRA) wrote:


[ https://issues.apache.org/jira/browse/SOLR-172? page=com.atlassian.jira.plugin.system.issuetabpanels:comment- tabpanel#action_12475663 ]

Ryan McKinley commented on SOLR-172:
------------------------------------

Is it ever ok to send a document without a unique Key? does/should solr require a unique key field in the schema?

It seems like not much works properly if one is not specified - maybe it should be an explicit requirement.

add doc without uniqueKey field causes NPE
------------------------------------------

                Key: SOLR-172
                URL: https://issues.apache.org/jira/browse/SOLR-172
            Project: Solr
         Issue Type: Bug
           Reporter: Hoss Man

as mentioned in email by otis...
SimplePostTool: WARNING: Unexpected response from Solr: '<result
status="1">java.lang.NullPointerException
at org.apache.solr.schema.FieldType.storedToIndexed (FieldType.java:248) at org.apache.solr.update.UpdateHandler.getIndexedId (UpdateHandler.java:134)
        at
org.apache.solr.update.DirectUpdateHandler2.overwriteBoth (DirectUpdateHandler2.java:380)
...

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