36 lines
1.4 KiB
SQL
36 lines
1.4 KiB
SQL
create table if not exists users (
|
|
id uuid primary key not null default gen_random_uuid(),
|
|
telegram_id bigint not null UNIQUE
|
|
);
|
|
|
|
create table if not exists currency (
|
|
id serial primary key not null,
|
|
symbol text not null UNIQUE
|
|
-- decimals integer not null
|
|
);
|
|
|
|
create table if not exists instrument (
|
|
id uuid primary key not null default gen_random_uuid(),
|
|
base_currency_id integer references currency(id) not null,
|
|
quoted_currency_id integer references currency(id) not null,
|
|
CHECK (base_currency_id <> quoted_currency_id),
|
|
UNIQUE (base_currency_id, quoted_currency_id)
|
|
);
|
|
|
|
create type alert_condition as enum ('above', 'below');
|
|
|
|
create table if not exists alert (
|
|
id uuid primary key not null default gen_random_uuid(),
|
|
user_id uuid references users(id) not null,
|
|
instrument_id uuid references instrument(id) not null,
|
|
price text not null,
|
|
active bool not null default true,
|
|
condition alert_condition not null
|
|
);
|
|
|
|
insert into currency(symbol) values ('USDT'), ('BTC'), ('ETH'), ('SOL');
|
|
|
|
insert into instrument (base_currency_id, quoted_currency_id) values
|
|
((select id from currency where symbol = 'BTC'), (select id from currency where symbol = 'USDT')),
|
|
((select id from currency where symbol = 'ETH'), (select id from currency where symbol = 'USDT')),
|
|
((select id from currency where symbol = 'SOL'), (select id from currency where symbol = 'USDT'));
|