Upsert with multi-column unique index?

export const dailyStats = pgTable(
  "daily_stats",
  {
    ad_id: text("ad_id")
      .references(() => ads.id)
      .primaryKey(),
    created_at: timestamp("created_at").notNull().defaultNow(),
    updated_at: timestamp("updated_at").notNull().defaultNow(),

    date: date("date").notNull(),

    ...statObject,
  },
  (t) => ({
    ad_and_date: uniqueIndex("ad_and_date").on(t.ad_id, t.date),
  })
);

await db
        .insert(dailyStats)
        .values({
          ad_id: dbAd.id,
          date: date.toISOString(),
          ...dailyStatsInsert,
        })
        .onConflictDoUpdate({
          target: [dailyStats.ad_id, dailyStats.date],
          set: dailyStatsInsert,
        });