@@ -1363,7 +1363,7 @@ Code: 395. DB::Exception: Received from localhost:9000. DB::Exception: Too many.
## identity {#identity}
Returns the same value that was used as its argument. Used for debugging and testing, allows to cancel using index, and get the query performance of a full scan. When query is analyzed for possible use of index, the analyzer doesn’t look inside `identity` functions.
Returns the same value that was used as its argument. Used for debugging and testing, allows to cancel using index, and get the query performance of a full scan. When query is analyzed for possible use of index, the analyzer doesn’t look inside `identity` functions. Also constant folding is not applied too.