Safe Haskell	None
Language	Haskell2010

Spark.Core.ColumnFunctions

Contents

Description

The standard library of functions that operate on data columns.

Synopsis

Arithmetic operations

(.+) :: (Num out, HomoBinaryOp2 a1 a2 out) => a1 -> a2 -> out Source #

Overloaded operator for operationts that are guaranteed to succeed.

Reductions

colSum :: forall ref a. (Num a, SQLTypeable a, ToSQL a) => Column ref a -> LocalData a Source #

The sum of all the elements in a column.

If the data type is too small to represent the sum, the value being returned is undefined.