CREATE TABLE IF NOT EXISTS shortened_url_clicks (
    id             BIGSERIAL    PRIMARY KEY,
    short_url_id   BIGINT       NOT NULL REFERENCES shortened_urls(id) ON DELETE CASCADE,
    code           VARCHAR(16)  NOT NULL,
    clicked_at     TIMESTAMPTZ  NOT NULL DEFAULT now(),
    client_ip      INET,
    client_ua      TEXT,
    referer        TEXT,
    country        CHAR(2),
    is_bot         BOOLEAN      NOT NULL DEFAULT FALSE
);

CREATE INDEX IF NOT EXISTS shortened_url_clicks_short_url_id_idx ON shortened_url_clicks (short_url_id);
CREATE INDEX IF NOT EXISTS shortened_url_clicks_clicked_at_idx   ON shortened_url_clicks (clicked_at DESC);
CREATE INDEX IF NOT EXISTS shortened_url_clicks_code_idx         ON shortened_url_clicks (code);
CREATE INDEX IF NOT EXISTS shortened_url_clicks_country_idx      ON shortened_url_clicks (country) WHERE country IS NOT NULL;
CREATE INDEX IF NOT EXISTS shortened_url_clicks_is_bot_idx       ON shortened_url_clicks (is_bot);