Sql Expert

It won't let you write a query without validating it first, and it knows the sharp edges of ClickHouse's sparse indexing, so you won't accidentally scan a billion rows because you filtered on a secondary key column without including the partition key. It discovers schemas on demand, handles system table queries by deferring to a specialist skill, and optimizes for the common case of time series analytics. Use it when you need to pull data from ClickHouse and want the query to actually be fast. The mandatory validation step feels heavy handed until you've debugged one too many queries that passed syntax checks but killed production.