Hey Pinot I have few questions regarding how Pinot handles 2 concurrency cases • CASE 1: If I have a batch of transaction and in that batch I have two transactions modifying my single record how pinot handle it. • CASE 2: If my multithreaded application trying to change a single record at a same time what will happen.

First to clarify, Pinot is not a transactional database. Having said that, it supports upsert, which resolves based on time column configured

Can you give me an example for this

Hey does pinot support two-phase-commit or Exactly once as a sink with Spark or Flink