Enum google_api_proto::google::spanner::v1::TypeAnnotationCode

#[repr(i32)]
pub enum TypeAnnotationCode {
    Unspecified = 0,
    PgNumeric = 2,
    PgJsonb = 3,
    PgOid = 4,
}

TypeAnnotationCode is used as a part of [Type][google.spanner.v1.Type] to disambiguate SQL types that should be used for a given Cloud Spanner value. Disambiguation is needed because the same Cloud Spanner type can be mapped to different SQL types depending on SQL dialect. TypeAnnotationCode doesn’t affect the way value is serialized.

Variants

Unspecified = 0

Not specified.

PgNumeric = 2

PostgreSQL compatible NUMERIC type. This annotation needs to be applied to [Type][google.spanner.v1.Type] instances having [NUMERIC][google.spanner.v1.TypeCode.NUMERIC] type code to specify that values of this type should be treated as PostgreSQL NUMERIC values. Currently this annotation is always needed for [NUMERIC][google.spanner.v1.TypeCode.NUMERIC] when a client interacts with PostgreSQL-enabled Spanner databases.

PgJsonb = 3

PostgreSQL compatible JSONB type. This annotation needs to be applied to [Type][google.spanner.v1.Type] instances having [JSON][google.spanner.v1.TypeCode.JSON] type code to specify that values of this type should be treated as PostgreSQL JSONB values. Currently this annotation is always needed for [JSON][google.spanner.v1.TypeCode.JSON] when a client interacts with PostgreSQL-enabled Spanner databases.

PgOid = 4

PostgreSQL compatible OID type. This annotation can be used by a client interacting with PostgreSQL-enabled Spanner database to specify that a value should be treated using the semantics of the OID type.

Implementations

impl TypeAnnotationCode

pub fn is_valid(value: i32) -> bool

Returns true if value is a variant of TypeAnnotationCode.

pub fn from_i32(value: i32) -> Option<TypeAnnotationCode>

👎Deprecated: Use the TryFrom<i32> implementation instead

Converts an i32 to a TypeAnnotationCode, or None if value is not a valid variant.

impl TypeAnnotationCode

pub fn as_str_name(&self) -> &'static str

String value of the enum field names used in the ProtoBuf definition.

The values are not transformed in any way and thus are considered stable (if the ProtoBuf definition does not change) and safe for programmatic use.

pub fn from_str_name(value: &str) -> Option<Self>

Creates an enum from field names used in the ProtoBuf definition.

Trait Implementations

impl Clone for TypeAnnotationCode

fn clone(&self) -> TypeAnnotationCode

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for TypeAnnotationCode

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

Formats the value using the given formatter.

impl Default for TypeAnnotationCode

fn default() -> TypeAnnotationCode

Returns the “default value” for a type.

impl From<TypeAnnotationCode> for i32

fn from(value: TypeAnnotationCode) -> i32

Converts to this type from the input type.

impl Hash for TypeAnnotationCode

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for TypeAnnotationCode

fn cmp(&self, other: &TypeAnnotationCode) -> 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 TypeAnnotationCode

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for TypeAnnotationCode

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

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

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

This method tests less than (for self and other) and is used by the < operator.

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

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

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

This method tests greater than (for self and other) and is used by the > operator.

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

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

impl TryFrom<i32> for TypeAnnotationCode

type Error = UnknownEnumValue

The type returned in the event of a conversion error.

fn try_from(value: i32) -> Result<TypeAnnotationCode, UnknownEnumValue>

Performs the conversion.

impl Copy for TypeAnnotationCode

impl Eq for TypeAnnotationCode

impl StructuralPartialEq for TypeAnnotationCode