drop table chromosomes;
create table chromosomes(
        score   integer
        ,div            numeric(6,1)
        ,del            numeric(6,1)
        ,ins            numeric(6,1)
        ,q_sequence     text
        --,begin1               integer
        --,end1         integer
        ,pos    box
        ,left_paren     text
        ,repeat1                text
        ,repeat2                text
        ,class_family   text
        ,begin2         text
        ,end2           text
        ,left_paren2   text
        ,ID             integer
);

create index idx_chromosomes_1 on chromosomes(q_sequence);
create index idx_chromosomes_2 on chromosomes using gist(pos);