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DBIx::SearchBuilder::Unique(3pm)			User Contributed Perl Documentation			  DBIx::SearchBuilder::Unique(3pm)

NAME
       DBIx::SearchBuilder::Unique - Ensure uniqueness of records in a collection

SYNOPSIS
	   package Foo::Collection;
	   use base 'DBIx::SearchBuilder';

	   use DBIx::SearchBuilder::Unique; # mixin

	   my $collection = Foo::Collection->New();
	   $collection->SetupComplicatedJoins;
	   $collection->OrderByMagic;

	   while (my $thing = $collection->Next) {
	       # $thing is going to be distinct
	   }

DESCRIPTION
       Currently, DBIx::SearchBuilder makes exceptions for databases which cannot handle both "SELECT DISTINCT" and ordering in the same
       statement; it drops the "DISTINCT" requirement. This, of course, means that you can get the same row twice, which you might not want. If
       that's the case, use this module as a mix-in, and it will provide you with an "AddRecord" method which ensures that a record will not
       appear twice in the same search.

AUTHOR
       Simon Cozens.

COPYRIGHT
       Copyright 2005 Best Practical Solutions, LLC

       This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

perl v5.14.2							    2011-07-28					  DBIx::SearchBuilder::Unique(3pm)