Enum AlterAction 

pub enum AlterAction {
    RenameTo(NameId),
    RenameColumn {
        from: NameId,
        to: NameId,
    },
    AddColumn(ColumnDef),
    DropColumn(NameId),
    SetNotNull {
        column: NameId,
        start: u32,
        end: u32,
    },
    DropNotNull(NameId),
    AddCheck {
        name: Option<NameId>,
        expr: ExprId,
        start: u32,
        end: u32,
    },
    DropConstraint(NameId),
}

What an ALTER TABLE does.

Variants

RenameTo(NameId)

RENAME TO name.

RenameColumn

RENAME [COLUMN] a TO b.

Fields

from: NameId

The current name.

to: NameId

The new name.

AddColumn(ColumnDef)

ADD [COLUMN] def.

DropColumn(NameId)

DROP [COLUMN] name.

SetNotNull

ALTER [COLUMN] name SET NOT NULL [ON CONFLICT action].

Fields

column: NameId

The column.

start: u32

Where NOT NULL starts in the statement’s own source.

end: u32

Where the clause ends, after any ON CONFLICT.

DropNotNull(NameId)

ALTER [COLUMN] name DROP NOT NULL.

AddCheck

ADD [CONSTRAINT name] CHECK (expr) [ON CONFLICT action].

Fields

name: Option<NameId>

The constraint’s name, when one was written.

expr: ExprId

The predicate.

start: u32

Where the constraint starts in the statement’s own source.

end: u32

Where it ends, after any ON CONFLICT.

DropConstraint(NameId)

DROP CONSTRAINT name.

Trait Implementations

impl Clone for AlterAction

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 AlterAction

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

Formats the value using the given formatter.

impl Eq for AlterAction

impl PartialEq for AlterAction

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for AlterAction