Enum mz_pgrepr::Value

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pub enum Value {
Show 33 variants Array { dims: Vec<ArrayDimension>, elements: Vec<Option<Value>>, }, Bool(bool), Bytea(Vec<u8>), Char(u8), Date(Date), Float4(f32), Float8(f64), Int2(i16), Int4(i32), Int8(i64), UInt2(UInt2), UInt4(UInt4), UInt8(UInt8), Interval(Interval), Jsonb(Jsonb), List(Vec<Option<Value>>), Map(BTreeMap<String, Option<Value>>), Name(String), Numeric(Numeric), Oid(u32), Record(Vec<Option<Value>>), Time(NaiveTime), Timestamp(CheckedTimestamp<NaiveDateTime>), TimestampTz(CheckedTimestamp<DateTime<Utc>>), Text(String), BpChar(String), VarChar(String), Uuid(Uuid), Int2Vector { elements: Vec<Option<Value>>, }, MzTimestamp(Timestamp), Range(Range<Box<Value>>), MzAclItem(MzAclItem), AclItem(AclItem),
}
Expand description

A PostgreSQL datum.

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Array

A variable-length, multi-dimensional array of values.

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§dims: Vec<ArrayDimension>

The dimensions of the array.

§elements: Vec<Option<Value>>

The elements of the array.

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Bool(bool)

A boolean value.

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Bytea(Vec<u8>)

A byte array, i.e., a variable-length binary string.

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Char(u8)

A single-byte character.

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Date(Date)

A date.

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Float4(f32)

A 4-byte floating point number.

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Float8(f64)

An 8-byte floating point number.

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Int2(i16)

A 2-byte signed integer.

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Int4(i32)

A 4-byte signed integer.

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Int8(i64)

An 8-byte signed integer.

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UInt2(UInt2)

A 2-byte unsigned integer.

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UInt4(UInt4)

A 4-byte unsigned integer.

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UInt8(UInt8)

An 8-byte unsigned integer.

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Interval(Interval)

A time interval.

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Jsonb(Jsonb)

A binary JSON blob.

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List(Vec<Option<Value>>)

A sequence of homogeneous values.

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Map(BTreeMap<String, Option<Value>>)

A map of string keys and homogeneous values.

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Name(String)

An identifier string of no more than 64 characters in length.

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Numeric(Numeric)

An arbitrary precision number.

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Oid(u32)

An object identifier.

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Record(Vec<Option<Value>>)

A sequence of heterogeneous values.

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Time(NaiveTime)

A time.

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Timestamp(CheckedTimestamp<NaiveDateTime>)

A date and time, without a timezone.

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TimestampTz(CheckedTimestamp<DateTime<Utc>>)

A date and time, with a timezone.

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Text(String)

A variable-length string.

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BpChar(String)

A fixed-length string.

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VarChar(String)

A variable-length string with an optional limit.

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Uuid(Uuid)

A universally unique identifier.

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Int2Vector

A small int vector.

Fields

§elements: Vec<Option<Value>>

The elements of the vector.

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MzTimestamp(Timestamp)

A Materialize timestamp.

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Range(Range<Box<Value>>)

A contiguous range of values along a domain.

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MzAclItem(MzAclItem)

A list of privileges granted to a role, that uses mz_repr::role_id::RoleIds for role references.

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AclItem(AclItem)

A list of privileges granted to a user that uses mz_repr::adt::system::Oids for role references. This type is used primarily for compatibility with PostgreSQL.

Implementations§

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impl Value

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pub fn from_datum(datum: Datum<'_>, typ: &ScalarType) -> Option<Value>

Constructs a new Value from a Materialize datum.

The conversion happens in the obvious manner, except that Datum::Null is converted to None to align with how PostgreSQL handles NULL.

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pub fn into_datum<'a>(self, buf: &'a RowArena, typ: &Type) -> Datum<'a>

Converts a Materialize datum from this value.

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pub fn encode( &self, ty: &Type, format: Format, buf: &mut BytesMut ) -> Result<(), Error>

Serializes this value to buf in the specified format.

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pub fn encode_text(&self, buf: &mut BytesMut) -> Nestable

Serializes this value to buf using the text encoding format.

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pub fn encode_binary(&self, ty: &Type, buf: &mut BytesMut) -> Result<(), Error>

Serializes this value to buf using the binary encoding format.

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pub fn decode( format: Format, ty: &Type, raw: &[u8] ) -> Result<Value, Box<dyn Error + Sync + Send>>

Deserializes a value of type ty from raw using the specified format.

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pub fn decode_text<'a>( ty: &'a Type, raw: &'a [u8] ) -> Result<Value, Box<dyn Error + Sync + Send>>

Deserializes a value of type ty from raw using the text encoding format.

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pub fn decode_binary( ty: &Type, raw: &[u8] ) -> Result<Value, Box<dyn Error + Sync + Send>>

Deserializes a value of type ty from raw using the binary encoding format.

Trait Implementations§

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impl Debug for Value

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl Freeze for Value

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impl RefUnwindSafe for Value

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impl Send for Value

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impl Sync for Value

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impl Unpin for Value

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impl UnwindSafe for Value

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, U> CastInto<U> for T
where U: CastFrom<T>,

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fn cast_into(self) -> U

Performs the cast.
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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> FutureExt for T

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fn with_context(self, otel_cx: Context) -> WithContext<Self>

Attaches the provided Context to this type, returning a WithContext wrapper. Read more
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fn with_current_context(self) -> WithContext<Self>

Attaches the current Context to this type, returning a WithContext wrapper. Read more
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impl<T> Instrument for T

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

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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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> IntoRequest<T> for T

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fn into_request(self) -> Request<T>

Wrap the input message T in a tonic::Request
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impl<T, U> OverrideFrom<Option<&T>> for U
where U: OverrideFrom<T>,

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fn override_from(self, layer: &Option<&T>) -> U

Override the configuration represented by Self with values from the given layer.
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impl<T> Pointable for T

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const ALIGN: usize = _

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<P, R> ProtoType<R> for P
where R: RustType<P>,

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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<'a, S, T> Semigroup<&'a S> for T
where T: Semigroup<S>,

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fn plus_equals(&mut self, rhs: &&'a S)

The method of std::ops::AddAssign, for types that do not implement AddAssign.
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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

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impl<T> WithSubscriber for T

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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
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more
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impl<T> Allocation for T
where T: RefUnwindSafe + Send + Sync,