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Date: Mon, 24 Aug 2009 07:23:59 -0700 (PDT)
From: "Uwe Schindler (JIRA)" <jira@apache.org>
To: java-dev@lucene.apache.org
Subject: [jira] Commented: (LUCENE-1836) Flexible QueryParser fails with
 local different from en_US
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    [ https://issues.apache.org/jira/browse/LUCENE-1836?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12746890#action_12746890 ] 

Uwe Schindler commented on LUCENE-1836:
---------------------------------------

The Buddhist calendar is internally a subclass of GregorianCalendar with some offsets... Interesting. [http://www.docjar.com/html/api/sun/util/BuddhistCalendar.java.html]

The Java calendar will not overflow in 2038, as it uses a long (but the unix timestamp multiplied with 1000L), so it should last for several thousand/million years (I tested this), especially as the unix epoch is still always the same point in time (1970-01-01 expressed in the GregorianCalendar)

The problem with DateTools is more, that the values stored in index are not correctly normalized, so the index would not work on another locale (especially as parsing the dates may fail, because other number of days per month). All date/times with DateTools should be indexed as normalized values (gregorian with GMT/UTC TZ) to achieve interoperability. The same like indexing date/time with NumericField using the ms since unix epoch.

> Flexible QueryParser fails with local different from en_US
> ----------------------------------------------------------
>
>                 Key: LUCENE-1836
>                 URL: https://issues.apache.org/jira/browse/LUCENE-1836
>             Project: Lucene - Java
>          Issue Type: Bug
>          Components: contrib/*
>    Affects Versions: 2.9
>            Reporter: Uwe Schindler
>            Assignee: Luis Alves
>             Fix For: 2.9
>
>         Attachments: LUCENE-1836.patch, LUCENE-1836.patch, LUCENE-1836.patch, LUCENE-1836.patch
>
>
> I get the following error during the mentioned testcases on my computer, if I use the Locale de_DE (windows 32):
> {code}
>     [junit] Testsuite: org.apache.lucene.queryParser.standard.TestQPHelper
>     [junit] Tests run: 29, Failures: 1, Errors: 0, Time elapsed: 1,156 sec
>     [junit]
>     [junit] ------------- Standard Output ---------------
>     [junit] Result: (fieldX:xxxxx fieldy:xxxxxxxx)^2.0
>     [junit] ------------- ---------------- ---------------
>     [junit] Testcase: testLocalDateFormat(org.apache.lucene.queryParser.standard.TestQPHelper): FAILED
>     [junit] expected:<1> but was:<0>
>     [junit] junit.framework.AssertionFailedError: expected:<1> but was:<0>
>     [junit]     at org.apache.lucene.queryParser.standard.TestQPHelper.assertHits(TestQPHelper.java:1148)
>     [junit]     at org.apache.lucene.queryParser.standard.TestQPHelper.testLocalDateFormat(TestQPHelper.java:1005)
>     [junit]     at org.apache.lucene.util.LuceneTestCase.runTest(LuceneTestCase.java:201)
>     [junit]
>     [junit]
>     [junit] Test org.apache.lucene.queryParser.standard.TestQPHelper FAILED
>     [junit] Testsuite: org.apache.lucene.queryParser.standard.TestQueryParserWrapper
>     [junit] Tests run: 27, Failures: 1, Errors: 0, Time elapsed: 1,219 sec
>     [junit]
>     [junit] ------------- Standard Output ---------------
>     [junit] Result: (fieldX:xxxxx fieldy:xxxxxxxx)^2.0
>     [junit] ------------- ---------------- ---------------
>     [junit] Testcase: testLocalDateFormat(org.apache.lucene.queryParser.standard.TestQueryParserWrapper):       FAILED
>     [junit] expected:<1> but was:<0>
>     [junit] junit.framework.AssertionFailedError: expected:<1> but was:<0>
>     [junit]     at org.apache.lucene.queryParser.standard.TestQueryParserWrapper.assertHits(TestQueryParserWrapper.java:1120)
>     [junit]     at org.apache.lucene.queryParser.standard.TestQueryParserWrapper.testLocalDateFormat(TestQueryParserWrapper.java:985)
>     [junit]     at org.apache.lucene.util.LuceneTestCase.runTest(LuceneTestCase.java:201)
>     [junit]
>     [junit]
>     [junit] Test org.apache.lucene.queryParser.standard.TestQueryParserWrapper FAILED
> {code}
> With en_US as locale it works.

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