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From "ASF subversion and git services (JIRA)" <>
Subject [jira] [Commented] (LUCENE-6852) Add DimensionalFormat to Codec
Date Mon, 04 Jan 2016 14:35:39 GMT


ASF subversion and git services commented on LUCENE-6852:

Commit 1722882 from [~mikemccand] in branch 'dev/branches/branch_5x'
[ ]

LUCENE-6852: deprecate BKD tree for future dimensional values

> Add DimensionalFormat to Codec
> ------------------------------
>                 Key: LUCENE-6852
>                 URL:
>             Project: Lucene - Core
>          Issue Type: New Feature
>            Reporter: Michael McCandless
>            Assignee: Michael McCandless
>             Fix For: Trunk
>         Attachments: LUCENE-6852.patch
> This is phase 2 for adding dimensional indexing in Lucene, so we can (eventually) do
efficient numeric range filtering, BigInteger/Decimal and IPv6 support, and "point in shape"
spatial searching (2D or 3D).
> It's the follow-on from LUCENE-6825 (phase 1).
> This issue "just" adds DimensionalFormat (and Reader/Writer) to Codec and the IndexReader
hierarchy, to IndexWriter and merging, and to document API (DimensionalField).
> I also implemented dimensional support for SimpleTextCodec, and added a test case showing
that you can in fact use SimpleTextCodec to do multidimensional shape intersection (seems
to pass a couple times!).
> Phase 3 will be adding support to the default codec as well ("just" wrapping BKDWriter/Reader),
phase 4 is then fixing places that use the sandbox/spatial3d BKD tree to use the codec instead
and maybe exposing
> sugar for numerics, things like BigInteger/Decimal, etc.
> There are many nocommits still, but I think it's close-ish ... I'll commit to a branch
and iterate there.

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