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