[
https://issues.apache.org/jira/browse/LUCENE-5178?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13742073#comment-13742073
]
Robert Muir commented on LUCENE-5178:
-------------------------------------
I created a patch with getDocsWithField (and the current
fieldcache.getDocsWithField passing thru to it) for docvalues so you know if a
value is missing.
It also means e.g. SortedDocValues returns -1 ord for missing like fieldcache.
so its completely consistent there with FC.
currently simpletext is the only one implementing it: the other codecs return
MatchAllBits (and thats how the backcompat will work, because they never had
missing values before).
all tests are passing, but I want to think about strategies for the efficient
codecs (Memory/Disk) before doing anything.
one other thing i like is, if we do it this way, the codec has the chance to
represent missing values in a more efficient way than if the users do it
themselves "on top".
> doc values should allow configurable defaults
> ---------------------------------------------
>
> Key: LUCENE-5178
> URL: https://issues.apache.org/jira/browse/LUCENE-5178
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Yonik Seeley
>
> DocValues should somehow allow a configurable default per-field.
> Possible implementations include setting it on the field in the document or
> registration of an IndexWriter callback.
> If we don't make the default configurable, then another option is to have
> DocValues fields keep track of whether a value was indexed for that document
> or not.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
