Struct ParameterDescription 

#[non_exhaustive]
pub struct ParameterDescription {
    pub types: Vec<u32>,
}

Data structure returned when frontend describes a statement

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

types: Vec<u32>

parameter types

Implementations

impl ParameterDescription

pub fn new(types: Vec<u32>) -> Self

Constructs a new ParameterDescription.

Trait Implementations

impl Clone for ParameterDescription

fn clone(&self) -> ParameterDescription

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ParameterDescription

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

Formats the value using the given formatter.

impl Default for ParameterDescription

fn default() -> ParameterDescription

Returns the “default value” for a type.

impl Message for ParameterDescription

fn message_type() -> Option<u8>

Return the type code of the message. In order to maintain backward compatibility, Startup has no message type.

fn max_message_length() -> usize

Return the max length of message in this type.

fn message_length(&self) -> usize

Return the length of the message, including the length integer itself.

fn encode_body(&self, buf: &mut BytesMut) -> PgWireResult<()>

Encode body part of the message.

fn decode_body( buf: &mut BytesMut, _: usize, _ctx: &DecodeContext, ) -> PgWireResult<Self>

Decode body part of the message.

fn encode(&self, buf: &mut BytesMut) -> PgWireResult<()>

Default implementation for encoding message.

fn decode(buf: &mut BytesMut, ctx: &DecodeContext) -> PgWireResult<Option<Self>>

Default implementation for decoding message.

impl PartialEq for ParameterDescription

fn eq(&self, other: &ParameterDescription) -> 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 ParameterDescription

impl StructuralPartialEq for ParameterDescription