$sq_ds_uniq{$key} = $sq_ds{$key};

##</code><code>##

my %sq_ds_uniq;
my @uniq_queries = ();
for my $key (keys %sq_ds) {
    my $query = $sq_ds{$key}{query};
    if (!grep {query_like($_, $query)} @uniq_queries) {
        $sq_ds_uniq{$key} = $sq_ds{$key};
        push @uniq_queries, $query;
    }
}