Discover the advanced functionality of upserts and deletes in Apache Pinot, designed to handle mutable entities and rapidly changing data. Learn how Pinot efficiently manages these changes in real-time tables through an in-memory metadata map, enabling the seamless updating of existing data and the integration of deletes. This session explains how these capabilities are crucial for maintaining accurate, real-time analytics, especially when dealing with dynamic data streams like order status changes or change data capture feeds.