#! /usr/bin/perl
use warnings;
use strict;

package ABCconf;

sub Query {
    my( $package ) = caller;
    print "Query called from $package\n";
    my $x = ABCconf::Query->new();
}

sub Insert {
    print "Insert called\n";
    my $x = ABCconf::Query->new(); # <= problem: calls ABCconf::Query and then on its output ->new
} # Insert

package ABCconf::Query;

sub new {
    my $class = shift;
    print "New called: $class\n";
    return bless {}, $class;
} # new

package main;

ABCconf::Query();
print "-" x 60, "\n";
ABCconf::Insert();