v.20.6New Feature
Added Initial Implementation of EXPLAIN Query in ClickHouse
Added an initial implementation ofEXPLAINquery. Syntax:EXPLAIN SELECT .... This fixes #1118. #11873 (Nikolai Kochetov).
Why it matters
TheEXPLAIN query helps users by providing insight into how ClickHouse executes a query, enabling better query optimization and debugging by showing the query plan before actual execution. This solves the need for visibility into query processing addressed in issue #1118.How to use it
To use this feature, prepend the keywordEXPLAIN before your query. For example:EXPLAIN SELECT * FROM table_name WHERE condition;