c...@net2business.com wrote:
> 
> The following bug has been logged online:
> 
> Bug reference:      5848
> Logged by:          
> Email address:      c...@net2business.com
> PostgreSQL version: 8.1.22
> Operating system:   Centos 5.5
> Description:        Between operator issue
> Details: 
> 
> Statement 'A between B and C' always false if B is greater than C, even if A
> falls between them.

I think you want BETWEEN SYMMETRIC:

    <literal>BETWEEN SYMMETRIC</> is the same as <literal>BETWEEN</>
    except there is no requirement that the argument to the left of
    <literal>AND</> be less than or equal to the argument on the right.
    If it is not, those two arguments are automatically swapped, so that
    a nonempty range is always implied.

-- 
  Bruce Momjian  <br...@momjian.us>        http://momjian.us
  EnterpriseDB                             http://enterprisedb.com

  + It's impossible for everything to be true. +

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