create table if not exists execution_tickets (
    id bigserial primary key,
    signal_id bigint not null references trade_signals(id),
    execution_mode text not null,
    status text not null,
    created_ts timestamptz not null,
    expires_ts timestamptz,
    confirmed_by text,
    confirmed_at timestamptz,
    execution_id bigint references trade_executions(id),
    ticket_snapshot jsonb not null default '{}'::jsonb,
    created_at timestamptz not null default now(),
    updated_at timestamptz not null default now()
);

create index if not exists idx_execution_tickets_signal_created_desc
on execution_tickets (signal_id, created_ts desc);

create index if not exists idx_execution_tickets_status_created_desc
on execution_tickets (status, created_ts desc);

create index if not exists idx_execution_tickets_execution_id
on execution_tickets (execution_id);