Enum google_api_proto::google::cloud::bigquery::v2::routine::DeterminismLevel

#[repr(i32)]
pub enum DeterminismLevel {
    Unspecified = 0,
    Deterministic = 1,
    NotDeterministic = 2,
}

JavaScript UDF determinism levels.

If all JavaScript UDFs are DETERMINISTIC, the query result is potentially cachable (see below). If any JavaScript UDF is NOT_DETERMINISTIC, the query result is not cacheable.

Even if a JavaScript UDF is deterministic, many other factors can prevent usage of cached query results. Example factors include but not limited to: DDL/DML, non-deterministic SQL function calls, update of referenced tables/views/UDFs or imported JavaScript libraries.

SQL UDFs cannot have determinism specified. Their determinism is automatically determined.

Variants

Unspecified = 0

The determinism of the UDF is unspecified.

Deterministic = 1

The UDF is deterministic, meaning that 2 function calls with the same inputs always produce the same result, even across 2 query runs.

NotDeterministic = 2

The UDF is not deterministic.

Implementations

impl DeterminismLevel

pub fn is_valid(value: i32) -> bool

Returns true if value is a variant of DeterminismLevel.

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

👎Deprecated: Use the TryFrom<i32> implementation instead

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

impl DeterminismLevel

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 DeterminismLevel

fn clone(&self) -> DeterminismLevel

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for DeterminismLevel

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

Formats the value using the given formatter.

impl Default for DeterminismLevel

fn default() -> DeterminismLevel

Returns the “default value” for a type.

impl From<DeterminismLevel> for i32

fn from(value: DeterminismLevel) -> i32

Converts to this type from the input type.

impl Hash for DeterminismLevel

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 DeterminismLevel

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

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

fn partial_cmp(&self, other: &DeterminismLevel) -> 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 DeterminismLevel

type Error = UnknownEnumValue

The type returned in the event of a conversion error.

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

Performs the conversion.

impl Copy for DeterminismLevel

impl Eq for DeterminismLevel

impl StructuralPartialEq for DeterminismLevel