- Change GetRandomPrefixesByLength to return unique prefixes instead of all routes - Use CTE to first select random unique prefixes, then join to get their latest route info - This ensures each prefix appears only once in the list
- Change GetRandomPrefixesByLength to return unique prefixes instead of all routes - Use CTE to first select random unique prefixes, then join to get their latest route info - This ensures each prefix appears only once in the list