clickhouse-migration-deep-dive

Execute ClickHouse schema migrations — ALTER TABLE operations, data migration between engines, versioned migration runners, and zero-downtime schema changes. Use when modifying ClickHouse schemas, migrating data between tables, or implementing versioned migration workflows. Trigger: "clickhouse migration", "clickhouse ALTER TABLE", "clickhouse schema change", "migrate clickhouse", "clickhouse add column", "clickhouse schema migration".