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Posted to dev@lucene.apache.org by "Michael McCandless (Assigned) (JIRA)" <ji...@apache.org> on 2011/11/15 20:09:51 UTC
[jira] [Assigned] (LUCENE-3572) MultiIndexDocValues pretends it can
merge sorted sources
[ https://issues.apache.org/jira/browse/LUCENE-3572?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Michael McCandless reassigned LUCENE-3572:
------------------------------------------
Assignee: Michael McCandless
> MultiIndexDocValues pretends it can merge sorted sources
> --------------------------------------------------------
>
> Key: LUCENE-3572
> URL: https://issues.apache.org/jira/browse/LUCENE-3572
> Project: Lucene - Java
> Issue Type: Bug
> Reporter: Michael McCandless
> Assignee: Michael McCandless
> Fix For: 4.0
>
>
> Nightly build hit this failure:
> {noformat}
> ant test-core -Dtestcase=TestSort -Dtestmethod=testReverseSort -Dtests.seed=791b126576b0cfab:-48895c7243ecc5d0:743c683d1c9f7768 -Dtests.multiplier=3 -Dargs="-Dfile.encoding=ISO8859-1"
> [junit] Testcase: testReverseSort(org.apache.lucene.search.TestSort): Caused an ERROR
> [junit] expected:<[CEGIA]> but was:<[ACEGI]>
> [junit] at org.apache.lucene.search.TestSort.assertMatches(TestSort.java:1248)
> [junit] at org.apache.lucene.search.TestSort.assertMatches(TestSort.java:1216)
> [junit] at org.apache.lucene.search.TestSort.testReverseSort(TestSort.java:759)
> [junit] at org.apache.lucene.util.LuceneTestCase$3$1.evaluate(LuceneTestCase.java:523)
> [junit] at org.apache.lucene.util.LuceneTestCaseRunner.runChild(LuceneTestCaseRunner.java:149)
> [junit] at org.apache.lucene.util.LuceneTestCaseRunner.runChild(LuceneTestCaseRunner.java:51)
> {noformat}
> It's happening in the test for reverse-sort of a string field with DocValues, when the test had gotten SlowMultiReaderWrapper.
> I committed a fix to the test to avoid testing this case, but we need a better fix to the underlying bug.
> MultiIndexDocValues cannot merge sorted sources (I think?), yet somehow it's pretending it can (in the above test, the three subs had BYTES_FIXED_SORTED type, and the TypePromoter happily claims to merge these to BYTES_FIXED_SORTED; I think MultiIndexDocValues should return null for the sorted source in this case?
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