Struct PackColumnAddition 

pub struct PackColumnAddition {
    pub table: &'static str,
    pub column: &'static str,
    pub affinity: PackColumnAffinity,
}

An idempotent nullable-column addition to a pack-owned auxiliary table.

Identifiers must use ASCII letters, digits, or underscores and cannot start with a digit. Existing columns must match the declared type and have no default, primary key, generated expression, or NOT NULL constraint. A compatible partial upgrade completes without changing existing column values. The pack’s full create-table DDL must also include every declared column.

Fields

table: &'static str

Pack-owned auxiliary table in the backend’s main schema.

column: &'static str

Column to add when absent from an existing table.

affinity: PackColumnAffinity

Exact declared SQLite type required for this column.

Trait Implementations

impl Clone for PackColumnAddition

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for PackColumnAddition

impl Debug for PackColumnAddition

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

Formats the value using the given formatter.

impl Eq for PackColumnAddition

impl PartialEq for PackColumnAddition

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for PackColumnAddition