ClickHouse ® tips #11: Best way to get query types

In ClickHouse®, retrieving the type of a query, function, or aggregation is essential for debugging and issue identification, and while the toTypeName(x) function can provide this information, it requires executing the query, potentially leading to long response times and unnecessary duplicate results. A more efficient alternative is using the DESCRIBE command, which evaluates the query without execution and returns only one entry per column, resulting in significantly improved performance and a simpler solution.