Could this work for populating a hash with 2 columns of an array or arrays? And if so, would it be more efficient than walking through the array assigning key/value pairs from the columns...as in: 
my %hash;
for (my $row = 0; $row < @array; $row++) {

    $hash{"$array[$row][6]"} = "$array[$row][7]";

}

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Jack
Cogito cogito, ergo cogito sum
(I think I think, therefore I think I am)

In reply to Re^2: Extracting columns from a two dimensional array by jcoxen
in thread Extracting columns from a two dimensional array by Anonymous Monk

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