Struct Selection 

pub struct Selection {
    pub predicate: Predicate,
    pub order_by: Option<Vec<OrderByItem>>,
    pub limit: Option<u64>,
}

Fields

predicate: Predicate

order_by: Option<Vec<OrderByItem>>

limit: Option<u64>

Implementations

impl Selection

pub fn assume_null(&self, columns: &[String]) -> Self

Transform the selection to assume the given columns are NULL. This filters out ORDER BY items that reference missing columns.

pub fn referenced_columns(&self) -> Vec<String>

Collect all column names referenced in this selection (WHERE + ORDER BY). For JSON paths like licensing.territory, returns the column name (licensing), not the JSON path step (territory).

Trait Implementations

impl Clone for Selection

fn clone(&self) -> Selection

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Selection

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Selection

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Selection

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

Formats the value using the given formatter.

impl From<Predicate> for Selection

fn from(predicate: Predicate) -> Self

Converts to this type from the input type.

impl PartialEq for Selection

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

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl<'a> TryFrom<&'a str> for Selection

type Error = ParseError

The type returned in the event of a conversion error.

fn try_from(value: &'a str) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<String> for Selection

type Error = ParseError

The type returned in the event of a conversion error.

fn try_from(value: String) -> Result<Self, Self::Error>

Performs the conversion.

impl StructuralPartialEq for Selection