create schema life;
comment on schema life is 'Fortern的朋友与记事';

-- leaves_history table
create table life.leaves_history
(
    id          serial      not null
        constraint history_pk primary key,
    title       varchar(50) not null,
    description text        not null
);
comment on table life.leaves_history is 'Historical events';
comment on column life.leaves_history.title is 'Title';
comment on column life.leaves_history.description is 'Description';

-- leaves_history_item table
create table life.leaves_history_item
(
    id                 serial            not null
        constraint leaves_history_item_pk
            primary key,
    qq_no              bigint            not null,
    qq_group_no        integer default 0 not null,
    time_of_occurrence timestamp         not null,
    info               varchar(1024),
    history_id         integer           not null
        constraint leaves_history_item_history_id_fk
            references life.leaves_history
            on update cascade on delete restrict
);
comment on column life.leaves_history_item.qq_no is 'QQ number';
comment on column life.leaves_history_item.qq_group_no is 'QQ group number';
comment on column life.leaves_history_item.info is 'Description';
comment on column life.leaves_history_item.history_id is 'History table id';
create index leaves_history_item_history_id_index on life.leaves_history_item (history_id);
create index leaves_history_item_qq_group_no_index on life.leaves_history_item (qq_group_no);
create index leaves_history_item_qq_no_index on life.leaves_history_item (qq_no);
create index leaves_history_item_time_of_occurrence_index on life.leaves_history_item (time_of_occurrence);