Struct mz_postgres_util::desc::PostgresKeyDesc

pub struct PostgresKeyDesc {
    pub oid: Oid,
    pub name: String,
    pub cols: Vec<u16>,
    pub is_primary: bool,
    pub nulls_not_distinct: bool,
}

Describes a key in a PostgresTableDesc.

Fields

oid: Oid

This key is derived from the pg_constraint with this OID.

name: String

The name of the constraints.

cols: Vec<u16>

The attnum of the columns comprising the key. attnum is a unique identifier for a column in a PG table; see https://www.postgresql.org/docs/current/catalog-pg-attribute.html

is_primary: bool

Whether or not this key is the primary key.

nulls_not_distinct: bool

If this constraint was generated with NULLS NOT DISTINCT; see https://www.postgresql.org/about/featurematrix/detail/392/

Trait Implementations

impl Arbitrary for PostgresKeyDesc

type Parameters = (<u32 as Arbitrary>::Parameters, <String as Arbitrary>::Parameters, <bool as Arbitrary>::Parameters, <bool as Arbitrary>::Parameters)

The type of parameters that arbitrary_with accepts for configuration of the generated Strategy. Parameters must implement Default.

type Strategy = Map<(<u32 as Arbitrary>::Strategy, <String as Arbitrary>::Strategy, BoxedStrategy<Vec<u16>>, <bool as Arbitrary>::Strategy, <bool as Arbitrary>::Strategy), fn(_: (u32, String, Vec<u16>, bool, bool)) -> PostgresKeyDesc>

The type of Strategy used to generate values of type Self.

fn arbitrary_with(_top: Self::Parameters) -> Self::Strategy

Generates a Strategy for producing arbitrary values of type the implementing type (Self). The strategy is passed the arguments given in args.

fn arbitrary() -> Self::Strategy

Generates a Strategy for producing arbitrary values of type the implementing type (Self).

impl Clone for PostgresKeyDesc

fn clone(&self) -> PostgresKeyDesc

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for PostgresKeyDesc

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for PostgresKeyDesc

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Ord for PostgresKeyDesc

fn cmp(&self, other: &PostgresKeyDesc) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized + PartialOrd,

Restrict a value to a certain interval.

impl PartialEq for PostgresKeyDesc

fn eq(&self, other: &PostgresKeyDesc) -> 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 PartialOrd for PostgresKeyDesc

fn partial_cmp(&self, other: &PostgresKeyDesc) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl RustType<ProtoPostgresKeyDesc> for PostgresKeyDesc

fn into_proto(&self) -> ProtoPostgresKeyDesc

Convert a Self into a Proto value.

fn from_proto(proto: ProtoPostgresKeyDesc) -> 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 Serialize for PostgresKeyDesc

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for PostgresKeyDesc

impl StructuralPartialEq for PostgresKeyDesc