Enum ColumnType 

pub enum ColumnType {
    Int64,
    Float64,
    String,
    Bool,
    Bytes,
    Timestamp,
    Decimal,
    Geometry,
    Vector(u32),
    Uuid,
    Json,
    Ulid,
    Duration,
    Array,
    Set,
    Regex,
    Range,
    Record,
}

Typed column definition for strict document and columnar collections.

Variants

Int64

Float64

String

Bool

Bytes

Timestamp

Decimal

Geometry

Vector(u32)

Fixed-dimension float32 vector.

Uuid

Json

Arbitrary nested data stored as inline MessagePack. Variable-length. Accepts any Value type.

Ulid

ULID: 16-byte Crockford Base32-encoded sortable ID.

Duration

Duration: signed microsecond precision (i64 internally).

Array

Ordered array of values. Variable-length, inline MessagePack.

Set

Ordered set (auto-deduplicated). Variable-length, inline MessagePack.

Regex

Compiled regex pattern. Stored as string internally.

Range

Bounded range of values. Variable-length, inline MessagePack.

Record

Typed reference to another record (table:id). Variable-length, inline MessagePack.

Implementations

impl ColumnType

pub fn fixed_size(&self) -> Option<usize>

Whether this type has a fixed byte size in Binary Tuple layout.

pub fn is_variable_length(&self) -> bool

Whether this type is variable-length (requires offset table entry).

pub fn accepts(&self, value: &Value) -> bool

Whether a Value is compatible with this column type.

Accepts both native Value types (e.g., Value::DateTime for Timestamp) AND coercion sources from SQL input (e.g., Value::String for Timestamp). Null is accepted for any type — nullability is enforced at schema level.

Trait Implementations

impl Clone for ColumnType

fn clone(&self) -> ColumnType

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ColumnType

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ColumnType

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for ColumnType

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

Formats the value using the given formatter.

impl<'__msgpack_de> FromMessagePack<'__msgpack_de> for ColumnType

fn read<R: Read<'__msgpack_de>>(reader: &mut R) -> Result<Self, Error>

where Self: Sized,

Reads the MessagePack representation of this value from the provided reader.

impl FromStr for ColumnType

type Err = ColumnTypeParseError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl Hash for ColumnType

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for ColumnType

fn eq(&self, other: &ColumnType) -> 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 ColumnType

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl ToMessagePack for ColumnType

fn write<W: Write>(&self, writer: &mut W) -> Result<(), Error>

Writes the MessagePack representation of this value into the provided writer.

impl Eq for ColumnType

impl StructuralPartialEq for ColumnType