No, they shouldn't be same.
See the difference:
Lucene.Net.QueryParsers.QueryParser p = new
Lucene.Net.QueryParsers.QueryParser("", new
Lucene.Net.Analysis.WhitespaceAnalyzer());
Console.WriteLine( p.Parse("(oil or petroleum) and prices").ToString() );
Console.WriteLine( p.Parse("(oil OR petroleum) AND prices").ToString() );DIGY -----Original Message----- From: T. R. Halvorson [mailto:[email protected]] Sent: Monday, November 09, 2009 8:23 PM To: [email protected] Subject: Does QueryParser Require Upper Case Operators Hi all. I'm new and asking a beginner's question that I have not found answered in the archives. Documentation I have says the QueryParser needs the operators AND, OR, etc. to be in upper case. In an application under development, however, lower case seems to produce correct results in initial tests. I.e., (oil or petroleum) and prices is producing the same results as (oil OR petroleum) AND prices T. R. Halvorson [email protected] www.linkedin.com/in/trhalvorson www.ncodian.com http://twitter.com/trhalvorson