Enum Value 

pub enum Value {
    Null,
    Bool(bool),
    Int64(i64),
    Float64(f64),
    Decimal(String),
    String(String),
    Bytes(Vec<u8>),
    Date(NaiveDate),
    Time(NaiveTime),
    DateTime(NaiveDateTime),
    DateTimeTz(DateTime<Utc>),
    Json(Value),
    Uuid(String),
    Array(Vec<Value>),
}

A unified value type across all backends.

Variants

Null

Bool(bool)

Int64(i64)

Float64(f64)

Decimal(String)

String(String)

Bytes(Vec<u8>)

Date(NaiveDate)

Time(NaiveTime)

DateTime(NaiveDateTime)

DateTimeTz(DateTime<Utc>)

Json(Value)

Uuid(String)

Array(Vec<Value>)

Implementations

impl Value

pub fn byte_size(&self) -> usize

Approximate in-memory byte footprint of this value’s payload, used by the ferrule-sql size guards (max_cell_bytes / max_row_bytes / max_total_buffered_bytes) to fail fast on a pathological cell before it is retained.

This counts the bytes the payload actually owns on the heap (the String / Bytes / Json / nested-Array contents), not the fixed 24-ish-byte Value enum discriminant+inline scalars. The goal is a cheap, monotonic proxy for “how much memory does keeping this cell cost” — exact accounting is unnecessary because the guards are coarse ceilings, not an RSS budget. Json is measured by its serialized length (a tight upper bound on the retained serde_json::Value tree); Array recurses so a deeply nested array is charged for its whole subtree.

Trait Implementations

impl Clone for Value

fn clone(&self) -> Value

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Value

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Value

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Value

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for Value

fn eq(&self, other: &Value) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for Value

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Value