Enum Change 

pub enum Change {
    AddTable(Table),
    DropTable {
        name: String,
    },
    AddColumn {
        table: String,
        column: Column,
    },
    DropColumn {
        table: String,
        column: String,
    },
    AlterColumnType {
        table: String,
        column: String,
        from: String,
        to: String,
    },
    AlterColumnNullable {
        table: String,
        column: String,
        to: bool,
    },
    AlterColumnDefault {
        table: String,
        column: String,
        to: Option<String>,
    },
    AddPrimaryKey {
        table: String,
        columns: Vec<String>,
    },
    DropPrimaryKey {
        table: String,
    },
    AddUnique {
        table: String,
        columns: Vec<String>,
    },
    DropUnique {
        table: String,
        columns: Vec<String>,
    },
}

All structural diffs between two schemas. Ordering is meaningful for emit: dependencies first (CREATE TABLE before its columns get touched).

Variants

AddTable(Table)

DropTable

Fields

name: String

AddColumn

Fields

table: String

column: Column

DropColumn

Fields

table: String

column: String

AlterColumnType

Fields

table: String

column: String

from: String

to: String

AlterColumnNullable

Fields

table: String

column: String

to: bool

AlterColumnDefault

Fields

table: String

column: String

to: Option<String>

AddPrimaryKey

Fields

table: String

columns: Vec<String>

DropPrimaryKey

Fields

table: String

AddUnique

Fields

table: String

columns: Vec<String>

DropUnique

Fields

table: String

columns: Vec<String>

Trait Implementations

impl Clone for Change

fn clone(&self) -> Change

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Change

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

Formats the value using the given formatter.

impl PartialEq for Change

fn eq(&self, other: &Change) -> 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 Eq for Change

impl StructuralPartialEq for Change