Struct Describe

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#[non_exhaustive]
pub struct Describe { pub target_type: u8, pub name: Option<String>, }
Expand description

Describe command fron frontend to backend. For getting information of particular portal or statement

Fields (Non-exhaustive)§

This struct is marked as 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.
§target_type: u8§name: Option<String>

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impl Describe

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pub fn new(target_type: u8, name: Option<String>) -> Self

Constructs a new Describe.

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impl Debug for Describe

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

Formats the value using the given formatter. Read more
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impl Message for Describe

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fn message_type() -> Option<u8>

Return the type code of the message. In order to maintain backward compatibility, Startup has no message type.
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fn message_length(&self) -> usize

Return the length of the message, including the length integer itself.
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fn encode_body(&self, buf: &mut BytesMut) -> PgWireResult<()>

Encode body part of the message.
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fn decode_body(buf: &mut BytesMut, _: usize) -> PgWireResult<Self>

Decode body part of the message.
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fn encode(&self, buf: &mut BytesMut) -> PgWireResult<()>

Default implementation for encoding message. Read more
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fn decode(buf: &mut BytesMut) -> PgWireResult<Option<Self>>

Default implementation for decoding message. Read more
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impl PartialEq for Describe

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fn eq(&self, other: &Describe) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Eq for Describe

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impl StructuralPartialEq for Describe

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Blanket Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V