Struct TableSample 

pub struct TableSample {
    pub this: Option<Box<Expression>>,
    pub sample: Option<Box<Sample>>,
    pub expressions: Vec<Expression>,
    pub method: Option<String>,
    pub bucket_numerator: Option<Box<Expression>>,
    pub bucket_denominator: Option<Box<Expression>>,
    pub bucket_field: Option<Box<Expression>>,
    pub percent: Option<Box<Expression>>,
    pub rows: Option<Box<Expression>>,
    pub size: Option<i64>,
    pub seed: Option<Box<Expression>>,
}

TableSample - wraps an expression with a TABLESAMPLE clause Used when TABLESAMPLE follows a non-Table expression (subquery, function, etc.)

Fields

this: Option<Box<Expression>>

The expression being sampled (subquery, function, etc.)

sample: Option<Box<Sample>>

The sample specification

expressions: Vec<Expression>

method: Option<String>

bucket_numerator: Option<Box<Expression>>

bucket_denominator: Option<Box<Expression>>

bucket_field: Option<Box<Expression>>

percent: Option<Box<Expression>>

rows: Option<Box<Expression>>

size: Option<i64>

seed: Option<Box<Expression>>

Trait Implementations

impl Clone for TableSample

fn clone(&self) -> TableSample

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TableSample

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for TableSample

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for TableSample

fn eq(&self, other: &TableSample) -> 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 Serialize for TableSample

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for TableSample