$ pm_1148951_merge_arrays.pl
[
  {
    ACC    => "1A1A",
    DATE   => "12009-05-05",
    EXT1   => "1b",
    EXT2   => "12b",
    EXT3   => "13b",
    EXT4   => "14d",
    NAME   => "1PAUL DY",
    NUMBER => 100001,
  },
  {
    ACC    => "2A3B",
    DATE   => "2011-01-05",
    EXT1   => "2b",
    EXT2   => "2b",
    EXT3   => "2b",
    EXT4   => "2d",
    NAME   => "2PAUL DY",
    NUMBER => 200331,
  },
]