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https://issues.apache.org/jira/browse/LUCENE-5989?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14159825#comment-14159825
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David Smiley commented on LUCENE-5989:
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bq. This is supremely expert, I wonder if anyone out there has succeeded in
doing so?
{{org.apache.lucene.spatial.prefix.CellTokenStream}} :-) Though this doesn't
count since it's in Lucene.
+1 to make this easier via a BinaryField. With BinaryField and auto-prefixing,
CellTokenStream won't be needed for indexing a point. But it's needed for
other shapes and to support heat-map style faceting.
Jack's opinion about the "Keyword" name being far from obvious really resonated
with me. Despite Shai's reasonable explanation, it doesn't seem to me that
changing the status-quo to anything non-obvious is helpful. And it wouldn't
seem like the text equivalent of BinaryField -- for that the current name is
perfect, I think. But I do like the idea of simply having StringField taking a
byte[] too such that there is no BinaryField. Either way.
> Add BinaryField, to index a single binary token
> -----------------------------------------------
>
> Key: LUCENE-5989
> URL: https://issues.apache.org/jira/browse/LUCENE-5989
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Michael McCandless
> Assignee: Michael McCandless
> Fix For: 5.0, Trunk
>
> Attachments: LUCENE-5989.patch
>
>
> 5 years ago (LUCENE-1458) we "enabled" fully binary terms in the
> lowest levels of Lucene (the codec APIs) yet today, actually adding an
> arbitrary byte[] binary term during indexing is far from simple: you
> must make a custom Field with a custom TokenStream and a custom
> TermToBytesRefAttribute, as far as I know.
> This is supremely expert, I wonder if anyone out there has succeeded
> in doing so?
> I think we should make indexing a single byte[] as simple as indexing
> a single String.
> This is a pre-cursor for issues like LUCENE-5596 (encoding IPv6
> address as byte[16]) and LUCENE-5879 (encoding native numeric values
> in their simple binary form).
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