Struct ColumnDef 

pub struct ColumnDef {
    pub id: u16,
    pub name: String,
    pub ty: TypeId,
    pub flags: ColumnFlags,
    pub default_value: Option<DefaultExpr>,
}

A column definition. id is stable, monotonic, and never reused.

Fields

id: u16

name: String

ty: TypeId

flags: ColumnFlags

default_value: Option<DefaultExpr>

Optional default expression applied at insert stage time when the column is omitted or explicitly Null. Serialized for catalog persistence; old catalogs without this field deserialize to None.

Trait Implementations

impl Clone for ColumnDef

fn clone(&self) -> ColumnDef

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ColumnDef

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ColumnDef

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for ColumnDef

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

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 ColumnDef