Struct DistinctOptionsDSL 

pub struct DistinctOptionsDSL {
    pub subset: Option<Selector>,
    pub maintain_order: bool,
    pub keep_strategy: UniqueKeepStrategy,
}

Available on crate feature lazy only.

Fields

subset: Option<Selector>

Subset of columns that will be taken into account.

maintain_order: bool

This will maintain the order of the input. Note that this is more expensive. maintain_order is not supported in the streaming engine.

keep_strategy: UniqueKeepStrategy

Which rows to keep.

Trait Implementations

impl Clone for DistinctOptionsDSL

fn clone(&self) -> DistinctOptionsDSL

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DistinctOptionsDSL

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

Formats the value using the given formatter.

impl Default for DistinctOptionsDSL

fn default() -> DistinctOptionsDSL

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for DistinctOptionsDSL

fn deserialize<__D>( __deserializer: __D, ) -> Result<DistinctOptionsDSL, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Hash for DistinctOptionsDSL

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

where __H: Hasher,

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 PartialEq for DistinctOptionsDSL

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

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for DistinctOptionsDSL

impl StructuralPartialEq for DistinctOptionsDSL