Struct QueryExpr 

pub struct QueryExpr {
    pub source: String,
    pub alias: Option<String>,
    pub joins: Vec<JoinClause>,
    pub filter: Option<Expr>,
    pub order: Option<OrderClause>,
    pub limit: Option<Expr>,
    pub offset: Option<Expr>,
    pub projection: Option<Vec<ProjectionField>>,
    pub aggregation: Option<AggregateExpr>,
    pub distinct: bool,
    pub group_by: Option<GroupByClause>,
}

A query expression: Type [join …]* [filter …] [order …] [limit …] [{ projection }]

Fields

source: String

alias: Option<String>

Optional alias for the primary source (e.g. User as u). Used to disambiguate qualified column references in join queries. None for single-table queries.

joins: Vec<JoinClause>

Zero or more join clauses chained to the primary source. For a single-table query this is always empty so existing code paths are untouched.

filter: Option<Expr>

order: Option<OrderClause>

limit: Option<Expr>

offset: Option<Expr>

projection: Option<Vec<ProjectionField>>

aggregation: Option<AggregateExpr>

distinct: bool

group_by: Option<GroupByClause>

Trait Implementations

impl Clone for QueryExpr

fn clone(&self) -> QueryExpr

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for QueryExpr

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

Formats the value using the given formatter.

impl PartialEq for QueryExpr

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