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https://issues.apache.org/jira/browse/LUCENENET-423?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13049334#comment-13049334
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Christopher Currens commented on LUCENENET-423:
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.NET is far better at parsing date string, but it's the inconsistency between
the Java version and .NET version that I'm worried about. Search the index
with one query from java and you get different results with the same query in
.Net.
How compatible do we want to be with Java?
> QueryParser differences between Java and .NET
> ---------------------------------------------
>
> Key: LUCENENET-423
> URL: https://issues.apache.org/jira/browse/LUCENENET-423
> Project: Lucene.Net
> Issue Type: Bug
> Affects Versions: Lucene.Net 2.9.2, Lucene.Net 2.9.4, Lucene.Net 2.9.4g
> Reporter: Christopher Currens
>
> When trying to do a RangeQuery that uses dates in a certain format, .NET
> behaves differently from its Java counterpart. The code is the same between
> them, but as far as I can tell, it appears that it is a difference in the way
> Java parses dates vs how .NET parses dates. To reproduce:
> {code:java}
> var queryParser = new QueryParser(Lucene.Net.Util.Version.LUCENE_29,
> "FullText", new StandardAnalyzer(Lucene.Net.Util.Version.LUCENE_29));
> var query = queryParser.Parse("Field:[2001-01-17 TO 2001-01-20]");
> {code}
> You'll notice that query looks like the old DateField format (eg
> "0g1d64542"). If you do the same query in Java (or Luke), you'll notice the
> query gets parsed as if it were a RangeQuery of string. AFAIK, Java cannot
> parse a string formatted in that way. If you change the string to use /
> instead of - in the java, you'll get one that uses DateResolutions and
> DateTools.DateToString().
> It seems an appropriate fix for this, if we wanted to keep this behavior
> similar to Java, would be to write our own DateTime parser that behaved the
> same way to Java's parser.
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