Function value_to_comparable

graphlite/src/functions/special_functions.rs:243–260

Convert a Value to a comparable representation for equality/uniqueness checks This handles the complexity of comparing different Value types consistently

(value: &Value)

/// Convert a Value to a comparable representation for equality/uniqueness checks
/// This handles the complexity of comparing different Value types consistently
fn value_to_comparable(value: &Value) -> FunctionResult<ComparableValue> {
    match value {
        Value::Boolean(b) => Ok(ComparableValue::Boolean(*b)),
        Value::Number(n) => Ok(ComparableValue::Number(n.to_bits())), // Use bit representation for exact floating point comparison
        Value::String(s) => Ok(ComparableValue::String(s.clone())),
        Value::DateTime(dt) => Ok(ComparableValue::DateTime(dt.timestamp())),
        Value::DateTimeWithFixedOffset(dt) => Ok(ComparableValue::DateTime(dt.timestamp())),
        Value::DateTimeWithNamedTz(_, dt) => Ok(ComparableValue::DateTime(dt.timestamp())),
        Value::TimeWindow(tw) => Ok(ComparableValue::String(format!("{:?}", tw))), // Use debug format for comparison
        // Add more value types as needed
        _ => {
            warn!("Unsupported value type for comparison: {:?}", value);
            Err(FunctionError::InvalidArgumentType {
                message: format!("Value type {:?} is not supported for comparison", value),
            })
        }
    }
}

/// Comparable representation of values for equality and uniqueness checks
/// This ensures consistent comparison across different value types