Struct Query 

pub struct Query {
    pub select: SelectStatement,
    pub compound: Option<CompoundQuery>,
    pub match_clause: Option<MatchClause>,
    pub dml: Option<DmlStatement>,
    pub train: Option<TrainStatement>,
}

A complete VelesQL query.

Fields

select: SelectStatement

The SELECT statement.

compound: Option<CompoundQuery>

Compound query (UNION/INTERSECT/EXCEPT) - EPIC-040 US-006.

match_clause: Option<MatchClause>

MATCH clause for graph pattern matching (EPIC-045 US-001).

dml: Option<DmlStatement>

Optional DML statement (INSERT/UPDATE).

train: Option<TrainStatement>

Optional TRAIN statement (TRAIN QUANTIZER).

Implementations

impl Query

pub fn is_match_query(&self) -> bool

Returns true if this is a MATCH query.

pub fn is_select_query(&self) -> bool

Returns true if this is a SELECT query.

pub fn is_dml_query(&self) -> bool

Returns true if this is a DML query.

pub fn is_train(&self) -> bool

Returns true if this is a TRAIN statement.

pub fn new_select(select: SelectStatement) -> Self

Creates a new SELECT query.

pub fn new_match(match_clause: MatchClause) -> Self

Creates a new MATCH query (EPIC-045).

pub fn new_dml(dml: DmlStatement) -> Self

Creates a new DML query.

pub fn new_train(train: TrainStatement) -> Self

Creates a new TRAIN query.

Trait Implementations

impl Clone for Query

fn clone(&self) -> Query

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Query

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Query

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Query

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

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 Query