Enum SampleMode 

pub enum SampleMode {
    First,
    Last,
    Distributed,
}

Sampling mode for table reads

Variants

First

First N rows (default)

Last

Last N rows

Distributed

Evenly distributed sample

Trait Implementations

impl Clone for SampleMode

fn clone(&self) -> SampleMode

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SampleMode

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

Formats the value using the given formatter.

impl Default for SampleMode

fn default() -> SampleMode

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for SampleMode

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl JsonSchema for SampleMode

fn schema_name() -> Cow<'static, str>

The name of the generated JSON Schema.

fn schema_id() -> Cow<'static, str>

Returns a string that uniquely identifies the schema produced by this type.

fn json_schema(generator: &mut SchemaGenerator) -> Schema

Generates a JSON Schema for this type.

fn inline_schema() -> bool

Whether JSON Schemas generated for this type should be included directly in parent schemas, rather than being re-used where possible using the $ref keyword.

impl PartialEq for SampleMode

fn eq(&self, other: &SampleMode) -> 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 Copy for SampleMode

impl Eq for SampleMode

impl StructuralPartialEq for SampleMode