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sum

qbrs_core::expr

Function sum 

Source 
pub fn sum<C: ColumnKey>(
    _column: Column<C>,
) -> Keyed<Agg<Sum, C>, Cons<C::Table, Nil>, <C::Sql as Summable>::Sum>
where
    C::Sql: Summable,
    <C::Sql as Summable>::Sum: SqlType,
Expand description

sum(column). NULL over zero rows, so the result is always nullable.