@structure = (
    [{ ... },
    ],
    [
        { ... },
        { ... },
    ],
    [
        { ... },
        { ... },
    ],
    [
        { ... },
        { ... },
    ],
);

##

foreach @query {
  my @ex = executeRequest ($_);
  push @structure, [];
for (my $i=0;$i<=$#ex;$i++) {
			
   push @structure->[$i], $ex[$i]; 
			
}