Independent applications and agents send a mix of transactional and analytical queries to the same Postgres interface. Example queries update an order, read an account, aggregate revenue, and compare cohorts. Transactions and current-state reads execute in Postgres on local NVMe. pg_clickhouse pushes supported analytical queries on configured foreign tables to ClickHouse. Independently of query traffic, WalShadow continuously replicates selected tables from Postgres physical WAL into ClickHouse asynchronously. Query traffic and replication animate simultaneously, not as sequential stages. Animation timing is illustrative, not a latency measurement. Flows animate continuously and simultaneously along all connections.