my $dbh = $self->schema->storage->dbh;
- my @primary = map { lc } $dbh->primary_key('', $self->db_schema, $table);
+ my @primary = map { $self->_lc($_) } $dbh->primary_key('', $self->db_schema, $table);
s/\Q$self->{_quoter}\E//g for @primary;
return \@primary;