Struct Column 

pub struct Column {

    pub id: u32,
    pub name: String,
    pub storage_type: ColumnType,
    pub application_type: ColumnType,
    pub nullable: bool,
    pub primary_key: bool,
    pub default: Option<DefaultKind>,
    pub generated: bool,
    pub enum_values: Option<Vec<String>>,
    pub min: Option<f64>,
    pub max: Option<f64>,
    pub min_length: Option<usize>,
    pub max_length: Option<usize>,
    pub regex: Option<String>,
    pub check_expr: Option<String>,
    pub embedding_dim: Option<u32>,
    pub encrypted: bool,
    pub encrypted_indexable: bool,
}

A column definition.

Fields

id: u32

Stable column identifier. IDs must be unique within a table.

name: String

Logical column name.

storage_type: ColumnType

Physical storage type.

application_type: ColumnType

Application-facing type (often the same as storage_type).

nullable: bool

Whether the column may contain null.

primary_key: bool

Whether this column is part of the primary key.

default: Option<DefaultKind>

Optional default value generator.

generated: bool

Whether the value is generated on every mutation.

enum_values: Option<Vec<String>>

Permitted string values, if any.

min: Option<f64>

Minimum numeric value.

max: Option<f64>

Maximum numeric value.

min_length: Option<usize>

Minimum string/bytes length.

max_length: Option<usize>

Maximum string/bytes length.

regex: Option<String>

Regular expression a text value must match, stored as its source pattern.

check_expr: Option<String>

An optional check expression name for runtime evaluation.

embedding_dim: Option<u32>

Vector dimension for an Embedding column (required for ANN).

encrypted: bool

Encrypt this column’s page payload at rest (requires an encrypted db).

encrypted_indexable: bool

Encrypt the column but keep it queryable via deterministic equality tokens / order-preserving encoding (requires an encrypted db).

Implementations

impl Column

pub fn new(id: u32, name: impl Into<String>, storage_type: ColumnType) -> Column

Convenience constructor for the common case.

Trait Implementations

impl Clone for Column

fn clone(&self) -> Column

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Column

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Column

fn deserialize<__D>( __deserializer: __D, ) -> Result<Column, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Column

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

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Column