/usr/share/perl5/Tangram/Relational/TableSet.pm is in libtangram-perl 2.12-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 | package Tangram::Relational::TableSet;
use strict;
use Tangram::Schema;
use constant TABLES => 0;
use constant SORTED_TABLES => 1;
use constant KEY => 2;
sub new
{
my $class = shift;
my %seen;
my @tables = grep { !$seen{$_}++ } @_;
my @sorted_tables = sort @tables;
return bless [ \@tables, \@sorted_tables, "@sorted_tables" ], $class;
}
sub key
{
return shift->[KEY];
}
sub tables
{
@{ shift->[TABLES] }
}
sub is_improper_superset
{
my ($self, $other) = @_;
my %other_tables = map { $_ => 1 } $other->tables();
for my $table ($self->tables()) {
delete $other_tables{$table};
return 1 if keys(%other_tables) == 0;
}
return 0;
}
1;
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