datafusion_expr::binary

Function get_wider_type

Source 
pub fn get_wider_type(
    lhs: &DataType,
    rhs: &DataType,
) -> Result<DataType, DataFusionError>
Expand description

Returns the wider type among arguments lhs and rhs. The wider type is the type that can safely represent values from both types without information loss. Returns an Error if types are incompatible.