[jira] [Comment Edited] (SOLR-4647) Grouping is broken on docvalues-only fields

["Modassar Ather (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SOLR-4647?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14061877#comment-14061877 ] 

Modassar Ather edited comment on SOLR-4647 at 7/15/14 9:40 AM:
---------------------------------------------------------------

Hi,

I am also seeing this issue while doing grouping on docValues enabled field. I checked createField(...) method of FieldType which returns null if the field is not indexed and stored. 
And when the returned field (which is null) gets passed to the fieldType.toObject(...) method from finish() method of Grouping.java it causes the NullPointerException.
Kindly provide inputs if any of the indexe/stored needs to be set to true while creating a docValue field or this is an issue.

Thanks,
Modassar



was (Author: modassar):
Hi,

I am also seeing this issue while doing grouping on docValues enabled field. I checked createField(...) method of FieldType which returns null if the field is not indexed and stored. 
Kindly provide inputs if any of the indexe/stored needs to be set to true while creating a docValue field or this is an issue.

Thanks,
Modassar


> Grouping is broken on docvalues-only fields
> -------------------------------------------
>
>                 Key: SOLR-4647
>                 URL: https://issues.apache.org/jira/browse/SOLR-4647
>             Project: Solr
>          Issue Type: Bug
>    Affects Versions: 4.2
>            Reporter: Adrien Grand
>              Labels: newdev
>
> There are a few places where grouping uses FieldType.toObject(SchemaField.createField(String, float)) to translate a String field value to an Object. The problem is that createField returns null when the field is neither stored nor indexed, even if it has doc values.
> An option to fix it could be to use the ValueSource instead to resolve the Object value (similarily to NumericFacets).



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