Function trunc 

pub fn trunc<'a, V, E>(
    expr: E,
) -> SQLExpr<'a, V, <E::SQLType as RoundingPolicy<V::DialectMarker>>::Output, E::Nullable, E::Aggregate>
where
    V: SQLParam + 'a,
    E: Expr<'a, V>,
    E::SQLType: RoundingPolicy<V::DialectMarker>,

TRUNC - truncates a number towards zero.

Returns a dialect-aware float type, preserves nullability.

Example

use drizzle_core::expr::trunc;

// SELECT TRUNC(users.price)
let truncated = trunc(users.price);