#!/usr/bin/perl

use strict;
use warnings;

use DBI;
use Data::Dumper;

my $table = shift @ARGV || 'people';

my $dbh = DBI->connect("DBI:mysql:database=experts;host=localhost",
                       "developer", "secret", {'RaiseError' => 1});

my $sth = $dbh->prepare("SELECT * FROM $table");
die "Error: " . $dbh->errstr . "\n" unless ($sth);
die "Error: " . $sth->errstr . "\n" unless ($sth->execute);

my $names         = $sth->{'NAME'};
my $type          = $sth->{'mysql_type_name'};
my $length        = $sth->{'mysql_length'};
my $is_nullable   = $sth->{'NULLABLE'};
my $is_pri_key    = $sth->{'mysql_is_pri_key'};
my $is_autoinc    = $sth->{'mysql_is_auto_increment'};

$sth->finish();
$dbh->disconnect();

my @structure = map {
   { 
      f_name      => $names->[$_],
      f_type      => $type->[$_],
      f_length    => $length->[$_], 
      f_nullable  => $is_nullable->[$_] ? 1 : 0,
      f_pri_key   => $is_pri_key->[$_]  ? 1 : 0,
      f_autoinc   => $is_autoinc->[$_]  ? 1 : 0,
   };
} (0..$#{$names});

die Dumper \@structure;