TRUNCATE
Returns the number x, truncated to d decimal places. If d is 0, the result has no decimal point or fractional part. d can be negative to cause d digits left of the decimal point of the value x to become zero. The maximum absolute value for d is 30; any digits in excess of 30 (or -30) are truncated.
Syntax
TRUNCATE( <x, d> )
Examples
SELECT TRUNCATE(1.223, 1);
┌────────────────────┐
│ truncate(1.223, 1) │
├────────────────────┤
│ 1.2 │
└────────────────────┘