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https://issues.apache.org/jira/browse/LUCENE-9334?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17321255#comment-17321255
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ASF subversion and git services commented on LUCENE-9334:
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Commit d03662c48bfc5bf2be4840a7f743f9cb64b17fee in lucene's branch
refs/heads/main from Mayya Sharipova
[ https://gitbox.apache.org/repos/asf?p=lucene.git;h=d03662c ]
LUCENE-9334 Consistency of field data structures
Require consistency between data-structures on a per-field basis
A field must be indexed with the same index options and data-structures across
all documents. Thus, for example, it is not allowed to have one document
where a certain field is indexed with doc values and points, and another
document
where the same field is indexed only with points.
But it is allowed for a document not to have a certain field at all.
As a consequence of this, doc values updates are
only applicable for fields that are indexed with doc values only.
> Require consistency between data-structures on a per-field basis
> ----------------------------------------------------------------
>
> Key: LUCENE-9334
> URL: https://issues.apache.org/jira/browse/LUCENE-9334
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Adrien Grand
> Priority: Blocker
> Fix For: main (9.0)
>
> Time Spent: 14.5h
> Remaining Estimate: 0h
>
> Follow-up of
> https://lists.apache.org/thread.html/r747de568afd7502008c45783b74cc3aeb31dab8aa60fcafaf65d5431%40%3Cdev.lucene.apache.org%3E.
> We would like to start requiring consitency across data-structures on a
> per-field basis in order to make it easier to do the right thing by default:
> range queries can run faster if doc values are enabled, sorted queries can
> run faster if points by indexed, etc.
> This would be a big change, so it should be rolled out in a major.
> Strict validation is tricky to implement, but we should still implement
> best-effort validation:
> - Documents all use the same data-structures, e.g. it is illegal for a
> document to only enable points and another document to only enable doc values,
> - When possible, check whether values are consistent too.
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