Struct AggregationConstraint 

#[non_exhaustive]
pub struct AggregationConstraint {
    pub column_name: String,
    pub minimum: i32,
    pub type: AggregationType,
}

Constraint on query output removing output rows that do not meet a minimum number of distinct values of a specified column.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

column_name: String

Column in aggregation constraint for which there must be a minimum number of distinct values in an output row for it to be in the query output.

minimum: i32

The minimum number of distinct values that an output row must be an aggregation of. Minimum threshold of distinct values for a specified column that must exist in an output row for it to be in the query output.

type: AggregationType

The type of aggregation the constraint allows. The only valid value is currently `COUNT_DISTINCT`.

Implementations

impl AggregationConstraint

pub fn column_name(&self) -> &str

Column in aggregation constraint for which there must be a minimum number of distinct values in an output row for it to be in the query output.

pub fn minimum(&self) -> i32

The minimum number of distinct values that an output row must be an aggregation of. Minimum threshold of distinct values for a specified column that must exist in an output row for it to be in the query output.

pub fn type(&self) -> &AggregationType

The type of aggregation the constraint allows. The only valid value is currently `COUNT_DISTINCT`.

impl AggregationConstraint

pub fn builder() -> AggregationConstraintBuilder

Creates a new builder-style object to manufacture AggregationConstraint.

Trait Implementations

impl Clone for AggregationConstraint

fn clone(&self) -> AggregationConstraint

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AggregationConstraint

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

Formats the value using the given formatter.

impl PartialEq for AggregationConstraint

fn eq(&self, other: &AggregationConstraint) -> 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 StructuralPartialEq for AggregationConstraint