Function negative

datafusion/physical-expr/src/expressions/negative.rs:184–199

Creates a unary expression NEGATIVE # Errors This function errors when the argument's type is not signed numeric

(
    arg: Arc<dyn PhysicalExpr>,
    input_schema: &Schema,
)

///
/// This function errors when the argument's type is not signed numeric
pub fn negative(
    arg: Arc<dyn PhysicalExpr>,
    input_schema: &Schema,
) -> Result<Arc<dyn PhysicalExpr>> {
    let data_type = arg.data_type(input_schema)?;
    if data_type.is_null() {
        Ok(arg)
    } else if !is_signed_numeric(&data_type)
        && !is_interval(&data_type)
        && !is_timestamp(&data_type)
    {
        plan_err!("Negation only supports numeric, interval and timestamp types")
    } else {
        Ok(Arc::new(NegativeExpr::new(arg)))
    }
}

#[cfg(test)]
mod tests {