pub fn uniq<E: Expression>(expr: E) -> AggregateExpr<Uniq<E::Output>, E>Expand description
uniq(expr) - approximate unique count (HyperLogLog)
pub fn uniq<E: Expression>(expr: E) -> AggregateExpr<Uniq<E::Output>, E>uniq(expr) - approximate unique count (HyperLogLog)