Enum Where 

pub enum Where {
    Composite(CompositeExpression),
    Document(DocumentExpression),
    Metadata(MetadataExpression),
}

This Where enum serves as an unified representation for the where and where_document clauses. Although this is not unified in the API level due to legacy design choices, in the future we will be unifying them together, and the structure of the unified AST should be identical to the one here. Currently both where and where_document clauses will be translated into Where, and if both are present we simply create a conjunction of both clauses as the actual filter. This is consistent with the semantics we used to have when the where and where_document clauses are treated seperately.

Variants

Composite(CompositeExpression)

Document(DocumentExpression)

Metadata(MetadataExpression)

Implementations

impl Where

pub fn conjunction(children: impl IntoIterator<Item = Where>) -> Self

pub fn disjunction(children: impl IntoIterator<Item = Where>) -> Self

pub fn fts_query_length(&self) -> u64

pub fn metadata_predicate_count(&self) -> u64

Trait Implementations

impl BitAnd for Where

type Output = Where

The resulting type after applying the & operator.

fn bitand(self, rhs: Self) -> Self::Output

Performs the & operation.

impl BitOr for Where

type Output = Where

The resulting type after applying the | operator.

fn bitor(self, rhs: Self) -> Self::Output

Performs the | operation.

impl Clone for Where

fn clone(&self) -> Where

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Where

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

Formats the value using the given formatter.

impl Display for Where

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

Formats the value using the given formatter.

impl From<bool> for Where

fn from(value: bool) -> Self

Converts to this type from the input type.

impl PartialEq for Where

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

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl TryFrom<Where> for Where

type Error = WhereConversionError

The type returned in the event of a conversion error.

fn try_from(proto_where: Where) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<Where> for Where

type Error = WhereConversionError

The type returned in the event of a conversion error.

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

Performs the conversion.

impl TryFrom<WhereDocument> for Where

type Error = WhereConversionError

The type returned in the event of a conversion error.

fn try_from(proto_document: WhereDocument) -> Result<Self, Self::Error>

Performs the conversion.

impl StructuralPartialEq for Where