Enum SchemaDiff 

pub enum SchemaDiff {
    TableAdded(TableDef),
    TableDropped(String),
    ColumnAdded {
        table: String,
        column: ColumnDef,
    },
    ColumnDropped {
        table: String,
        column: String,
    },
    ColumnAltered {
        table: String,
        column: String,
        from: ColumnDef,
        to: ColumnDef,
    },
    IndexAdded(IndexDef),
    IndexDropped {
        name: String,
        table_name: String,
    },
    ViewAdded(ViewDef),
    ViewDropped(String),
    ViewAltered {
        name: String,
        from: String,
        to: String,
    },
    SequenceAdded(SequenceDef),
    SequenceDropped(String),
    FunctionAdded(FunctionDef),
    FunctionDropped(String),
    FunctionAltered {
        name: String,
    },
    EnumAdded(EnumDef),
    EnumDropped(String),
    ConstraintAdded(ConstraintDef),
    ConstraintDropped {
        table: String,
        name: String,
    },
    TriggerAdded(TriggerDef),
    TriggerDropped {
        table: String,
        name: String,
    },
    ExtensionAdded(String),
    ExtensionDropped(String),
}

Differences between two schema snapshots.

Variants

TableAdded(TableDef)

A table was added in the target schema.

TableDropped(String)

A table was dropped from the target schema.

ColumnAdded

A column was added to an existing table.

Fields

table: String

column: ColumnDef

ColumnDropped

A column was dropped from an existing table.

Fields

table: String

column: String

ColumnAltered

A column definition was altered in an existing table.

Fields

table: String

column: String

from: ColumnDef

to: ColumnDef

IndexAdded(IndexDef)

An index was added in the target schema.

IndexDropped

An index was dropped from the target schema.

Carries both the index name and the table it belongs to — MySQL’s DROP INDEX syntax requires the table (unlike PostgreSQL where indexes are schema-scoped).

Fields

name: String

table_name: String

ViewAdded(ViewDef)

A view was added in the target schema.

ViewDropped(String)

A view was dropped from the target schema.

ViewAltered

A view definition was altered.

Fields

name: String

from: String

to: String

SequenceAdded(SequenceDef)

A sequence was added in the target schema.

SequenceDropped(String)

A sequence was dropped from the target schema.

FunctionAdded(FunctionDef)

A function was added in the target schema.

FunctionDropped(String)

A function was dropped from the target schema.

FunctionAltered

A function definition was altered.

Fields

name: String

EnumAdded(EnumDef)

An enum type was added in the target schema.

EnumDropped(String)

An enum type was dropped from the target schema.

ConstraintAdded(ConstraintDef)

A constraint was added in the target schema.

ConstraintDropped

A constraint was dropped from the target schema.

Fields

table: String

name: String

TriggerAdded(TriggerDef)

A trigger was added in the target schema.

TriggerDropped

A trigger was dropped from the target schema.

Fields

table: String

name: String

ExtensionAdded(String)

A PostgreSQL extension was added.

ExtensionDropped(String)

A PostgreSQL extension was dropped.

Trait Implementations

impl Clone for SchemaDiff

fn clone(&self) -> SchemaDiff

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SchemaDiff

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

Formats the value using the given formatter.

impl Display for SchemaDiff

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

Formats the value using the given formatter.

impl Serialize for SchemaDiff

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.