This is not a neat code, but does the job. Inspired from good Zaxo's comment to you above: 
#!/usr/bin/perl -w
use strict;
use Data::Dumper;

my $uAoA = uniqAoA(\@AoA);
print Dumper $uAoA;

sub uniqAoA
{
    my $array = shift;

    my %res;

    foreach my $ar (@{$array})
    {
      my $str = join (",",@{$ar});
      $res{$str} = 1;
    }

   my @kys = keys(%res);
   my @final;

    foreach(@kys)
    {
       my @a = split(",",$_);
       push @final, [ @a ];
    }

   return \@final;
}

[download]

Regards,
Edward

In reply to Re: Fast Way to Return Unique Array of Array by monkfan
in thread Fast Way to Return Unique Array of Array by neversaint

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