... elements of @array must be unique...

That strikes me as a drawback. After all, there seems to be nothing inherent in the organization of the two source arrays to suggest such a limitation. Why shouldn't one be allowed to end up with data like: 

my @AoH = (
   { 111 => "acct1" },
   { 111 => "hoo"   },
   { 111 => "ha"    },
   { 111 => "foo"   },
   { ... => "..."   },
   { 888 => "acct8" },
   );

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In reply to Re^2: Merging arrays by AnomalousMonk
in thread Merging arrays by Anonymous Monk

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