Enum OperationKind 

pub enum OperationKind {
    CreateTable(Table),
    DropTable(TableName),
    RenameTable {
        from: TableName,
        to: TableName,
    },
    AddColumn {
        table: TableName,
        column: Column,
    },
    DropColumn {
        table: TableName,
        column: ColumnName,
    },
    RenameColumn {
        table: TableName,
        from: ColumnName,
        to: ColumnName,
    },
    AlterColumn {
        table: TableName,
        column: ColumnName,
    },
    AddConstraint {
        table: TableName,
        constraint: Constraint,
    },
    DropConstraint {
        table: TableName,
        constraint: ConstraintName,
    },
    AddIndex {
        table: TableName,
        index: Index,
    },
    DropIndex {
        table: TableName,
        index: IndexName,
    },
    Backfill(Box<CheckedMutation>),
}

A precisely described schema edit.

Variants

CreateTable(Table)

Create a table.

DropTable(TableName)

Drop a table and its data.

RenameTable

Rename a table.

Fields

from: TableName

Old name.

to: TableName

New name.

AddColumn

Add a column.

Fields

table: TableName

Owning table.

column: Column

New column.

DropColumn

Drop a column and its data.

Fields

table: TableName

Owning table.

column: ColumnName

Removed column.

RenameColumn

Rename a column.

Fields

table: TableName

Owning table.

from: ColumnName

Old name.

to: ColumnName

New name.

AlterColumn

Alter a column domain, nullability, default, or generation rule.

Fields

table: TableName

Owning table.

column: ColumnName

Changed column.

AddConstraint

Add a constraint.

Fields

table: TableName

Owning table.

constraint: Constraint

Added constraint.

DropConstraint

Drop a constraint.

Fields

table: TableName

Owning table.

constraint: ConstraintName

Removed constraint.

AddIndex

Add an index.

Fields

table: TableName

Owning table.

index: Index

Added index.

DropIndex

Drop an index.

Fields

table: TableName

Owning table.

index: IndexName

Removed index.

Backfill(Box<CheckedMutation>)

Run an already admitted data mutation during the transition.

Trait Implementations

impl Clone for OperationKind

fn clone(&self) -> OperationKind

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for OperationKind

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

Formats the value using the given formatter.