Enum pgwire::message::BackendMessage[−][src]

pub enum BackendMessage {
Show 19 variants    AuthenticationOk,
    CommandComplete {
        tag: String,
    },
    EmptyQueryResponse,
    ReadyForQuery(TransactionStatus),
    RowDescription(Vec<FieldDescription>),
    DataRow(Vec<Option<Value>>),
    ParameterStatus(&'static str, String),
    BackendKeyData {
        conn_id: u32,
        secret_key: u32,
    },
    ParameterDescription(Vec<Type>),
    PortalSuspended,
    NoData,
    ParseComplete,
    BindComplete,
    CloseComplete,
    ErrorResponse(ErrorResponse),
    CopyInResponse {
        overall_format: Format,
        column_formats: Vec<Format>,
    },
    CopyOutResponse {
        overall_format: Format,
        column_formats: Vec<Format>,
    },
    CopyData(Vec<u8>),
    CopyDone,
}

Expand description

Internal representation of a backend message

Variants

`AuthenticationOk`

`CommandComplete`

Fields

tag: String

`EmptyQueryResponse`

`ReadyForQuery(TransactionStatus)`

Tuple Fields

0: TransactionStatus

`RowDescription(Vec<FieldDescription>)`

Tuple Fields

0: Vec<FieldDescription>

`DataRow(Vec<Option<Value>>)`

Tuple Fields

0: Vec<Option<Value>>

`ParameterStatus(&'static str, String)`

Tuple Fields

0: &'static str

1: String

`BackendKeyData`

Fields

conn_id: u32

secret_key: u32

`ParameterDescription(Vec<Type>)`

Tuple Fields

0: Vec<Type>

`PortalSuspended`

`NoData`

`ParseComplete`

`BindComplete`

`CloseComplete`

`ErrorResponse(ErrorResponse)`

Tuple Fields

0: ErrorResponse

`CopyInResponse`

Fields

overall_format: Format

column_formats: Vec<Format>

`CopyOutResponse`

Fields

overall_format: Format

column_formats: Vec<Format>

`CopyData(Vec<u8>)`

Tuple Fields

0: Vec<u8>

`CopyDone`

Trait Implementations

impl Debug for BackendMessage

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

Formats the value using the given formatter. Read more

impl Encoder<BackendMessage> for Codec

type Error = Error

The type of encoding errors. Read more

fn encode(
    &mut self,
    msg: BackendMessage,
    dst: &mut BytesMut
) -> Result<(), Error>

Encodes a frame into the buffer provided. Read more

impl From<ErrorResponse> for BackendMessage

fn from(err: ErrorResponse) -> BackendMessage

Performs the conversion.

Auto Trait Implementations

impl RefUnwindSafe for BackendMessage

impl Send for BackendMessage

impl Sync for BackendMessage

impl Unpin for BackendMessage

impl UnwindSafe for BackendMessage

Blanket Implementations

impl<T> Any for T where
T: 'static + ?Sized,

pub fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T where
T: ?Sized,

pub fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T where
T: ?Sized,

pub fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> From<T> for T

pub fn from(t: T) -> T

Performs the conversion.

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

impl<T, U> Into<U> for T where
U: From<T>,

pub fn into(self) -> U

Performs the conversion.

impl<T> Same<T> for T

type Output = T

Should always be Self

impl<T, U> TryFrom<U> for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

impl<V, T> VZip<V> for T where
V: MultiLane<T>,

pub fn vzip(self) -> V

impl<T> WithSubscriber for T

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> where
S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more

fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more