Struct mz_postgres_util::desc::ProtoPostgresColumnDesc

pub struct ProtoPostgresColumnDesc {
    pub name: String,
    pub type_oid: u32,
    pub type_mod: i32,
    pub nullable: bool,
    pub col_num: Option<u32>,
}

Fields

name: String

type_oid: u32

type_mod: i32

nullable: bool

col_num: Option<u32>

This field does not need to be optional, but was originally marked as optional when it was added, and the migration required to remove the optional marker is more convoluted than it’s worth.

Implementations

impl ProtoPostgresColumnDesc

pub fn col_num(&self) -> u32

Returns the value of col_num, or the default value if col_num is unset.

Trait Implementations

impl Clone for ProtoPostgresColumnDesc

fn clone(&self) -> ProtoPostgresColumnDesc

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ProtoPostgresColumnDesc

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

Formats the value using the given formatter.

impl Default for ProtoPostgresColumnDesc

fn default() -> Self

Returns the “default value” for a type.

impl Message for ProtoPostgresColumnDesc

fn encoded_len(&self) -> usize

Returns the encoded length of the message without a length delimiter.

fn clear(&mut self)

Clears the message, resetting all fields to their default.

fn encode(&self, buf: &mut impl BufMut) -> Result<(), EncodeError>

where Self: Sized,

Encodes the message to a buffer.

fn encode_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message to a newly allocated buffer.

fn encode_length_delimited( &self, buf: &mut impl BufMut, ) -> Result<(), EncodeError>

where Self: Sized,

Encodes the message with a length-delimiter to a buffer.

fn encode_length_delimited_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message with a length-delimiter to a newly allocated buffer.

fn decode(buf: impl Buf) -> Result<Self, DecodeError>

where Self: Default,

Decodes an instance of the message from a buffer.

fn decode_length_delimited(buf: impl Buf) -> Result<Self, DecodeError>

where Self: Default,

Decodes a length-delimited instance of the message from the buffer.

fn merge(&mut self, buf: impl Buf) -> Result<(), DecodeError>

where Self: Sized,

Decodes an instance of the message from a buffer, and merges it into self.

fn merge_length_delimited(&mut self, buf: impl Buf) -> Result<(), DecodeError>

where Self: Sized,

Decodes a length-delimited instance of the message from buffer, and merges it into self.

impl PartialEq for ProtoPostgresColumnDesc

fn eq(&self, other: &ProtoPostgresColumnDesc) -> 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 RustType<ProtoPostgresColumnDesc> for PostgresColumnDesc

fn into_proto(&self) -> ProtoPostgresColumnDesc

Convert a Self into a Proto value.

fn from_proto(proto: ProtoPostgresColumnDesc) -> Result<Self, TryFromProtoError>

Consume and convert a Proto back into a Self value.

fn into_proto_owned(self) -> Proto

A zero clone version of Self::into_proto that types can optionally implement, otherwise, the default implementation delegates to Self::into_proto.

impl StructuralPartialEq for ProtoPostgresColumnDesc