Struct ColumnDef 

pub struct ColumnDef {
    pub ty: ColumnType,
    pub nullable: bool,
    pub unique: bool,
    pub indexed: bool,
    pub default: Option<Expr>,
}

The static description of a column, used to generate schema.

Fields

ty: ColumnType

The column type.

nullable: bool

Whether the column accepts NULL.

unique: bool

Whether the column carries a UNIQUE constraint.

indexed: bool

Whether a secondary index is generated for the column.

default: Option<Expr>

The default value expression, inlined as a literal in DDL.

Implementations

impl ColumnDef

pub const fn new(ty: ColumnType) -> Self

A non-null column of the given type with no constraints.

pub fn nullable(self, nullable: bool) -> Self

Sets whether the column accepts NULL.

pub fn unique(self) -> Self

Marks the column UNIQUE.

pub fn indexed(self) -> Self

Marks the column as needing a secondary index.

pub fn default(self, value: impl Into<Expr>) -> Self

Sets the default value expression.

Trait Implementations

impl Clone for ColumnDef

fn clone(&self) -> Self

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 PartialEq for ColumnDef

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ColumnDef