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From Ahmet Arslan <iori...@yahoo.com>
Subject Re: Unary Operators and Operator Precedence
Date Wed, 20 Jan 2010 01:03:02 GMT
> Here are some questions about unary
> operators and operator precedence or default order of
> operation.
> 
> We all know the importance of order of operation of binary
> operators (ones that operate on two operands) such as AND
> and OR. We know how to impose express order of operation by
> grouping and nesting.
> 
> But what about unary operators, like + (plus), the
> "required operator", and - (minus), the "prohibited
> operator"? Unary operators operate on only one operand.

You might find this link interesting.

http://wiki.apache.org/lucene-java/BooleanQuerySyntax


      

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