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https://issues.apache.org/jira/browse/LUCENE-3918?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13591728#comment-13591728
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Shai Erera commented on LUCENE-3918:
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bq. patch with the other docvalues types too
Thanks Rob!
Indeed, I didn't separate between the ability to *sort by* other DocValues
types, to reading them from an index, given some permutation on the docs. So
now we have full support for reading such values from the index, given a
permutation on the docs.
For sorting by such values, we offer for now only NumericDVSorter. Others can
be added later on demand.
I think that in terms of the API and functionality, this is quite ready.
However, we should beef up the tests .. for instance:
* Move to use newDirectory(), newIWC(), RandomIndexWriter etc. to incorporate
some more randomness.
** I'm sure that most tests will fail since currently none seem to close the
directory.
* Write some heavier tests which index random values to sort by (in different
sources - payload, stored field ...), and lots of documents, to make sure our
handling of the in-memory cached stuff works correctly.
* Write a test which creates a large index (few GBs) to make sure we're not
limited to e.g. 2GB indexes while sorting ...
We don't need multi-threaded tests, as IndexSorter is not written for use in
such scenarios.
> Port index sorter to trunk APIs
> -------------------------------
>
> Key: LUCENE-3918
> URL: https://issues.apache.org/jira/browse/LUCENE-3918
> Project: Lucene - Core
> Issue Type: Task
> Components: modules/other
> Affects Versions: 4.0-ALPHA
> Reporter: Robert Muir
> Fix For: 4.2, 5.0
>
> Attachments: LUCENE-3918.patch, LUCENE-3918.patch, LUCENE-3918.patch,
> LUCENE-3918.patch, LUCENE-3918.patch, LUCENE-3918.patch, LUCENE-3918.patch
>
>
> LUCENE-2482 added an IndexSorter to 3.x, but we need to port this
> functionality to 4.0 apis.
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