Enum mz_sql_parser::ast::defs::query::SetExpr

pub enum SetExpr<T: AstInfo> {
    Select(Box<Select<T>>),
    Query(Box<Query<T>>),
    SetOperation {
        op: SetOperator,
        all: bool,
        left: Box<SetExpr<T>>,
        right: Box<SetExpr<T>>,
    },
    Values(Values<T>),
    Show(ShowStatement<T>),
    Table(T::ItemName),
}

A node in a tree, representing a “query body” expression, roughly: SELECT ... [ {UNION|EXCEPT|INTERSECT} SELECT ...]

Variants

Select(Box<Select<T>>)

Restricted SELECT .. FROM .. HAVING (no ORDER BY or set operations)

Query(Box<Query<T>>)

Parenthesized SELECT subquery, which may include more set operations in its body and an optional ORDER BY / LIMIT.

SetOperation

UNION/EXCEPT/INTERSECT of two queries

Fields

op: SetOperator

all: bool

left: Box<SetExpr<T>>

right: Box<SetExpr<T>>

Values(Values<T>)

Show(ShowStatement<T>)

Table(T::ItemName)

Trait Implementations

impl<T: AstInfo> AstDisplay for SetExpr<T>

fn fmt<W: Write>(&self, f: &mut AstFormatter<W>)

fn to_ast_string(&self) -> String

fn to_ast_string_stable(&self) -> String

fn to_ast_string_redacted(&self) -> String

impl<T: Clone + AstInfo> Clone for SetExpr<T>

where T::ItemName: Clone,

fn clone(&self) -> SetExpr<T>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T: Debug + AstInfo> Debug for SetExpr<T>

where T::ItemName: Debug,

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

Formats the value using the given formatter.

impl<T: AstInfo> Display for SetExpr<T>

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

Formats the value using the given formatter.

impl<T: AstInfo, T2: AstInfo> FoldNode<T, T2> for SetExpr<T>

type Folded = SetExpr<T2>

fn fold<F: Fold<T, T2>>(self, folder: &mut F) -> Self::Folded

impl<T: Hash + AstInfo> Hash for SetExpr<T>

where T::ItemName: Hash,

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

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<T: Ord + AstInfo> Ord for SetExpr<T>

where T::ItemName: Ord,

fn cmp(&self, other: &SetExpr<T>) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized + PartialOrd,

Restrict a value to a certain interval.

impl<T: PartialEq + AstInfo> PartialEq for SetExpr<T>

where T::ItemName: PartialEq,

fn eq(&self, other: &SetExpr<T>) -> 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<T: PartialOrd + AstInfo> PartialOrd for SetExpr<T>

where T::ItemName: PartialOrd,

fn partial_cmp(&self, other: &SetExpr<T>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl<'ast, T: AstInfo> VisitMutNode<'ast, T> for SetExpr<T>

fn visit_mut<V: VisitMut<'ast, T>>(&'ast mut self, visitor: &mut V)

impl<'ast, T: AstInfo> VisitNode<'ast, T> for SetExpr<T>

fn visit<V: Visit<'ast, T>>(&'ast self, visitor: &mut V)

impl<T: Eq + AstInfo> Eq for SetExpr<T>

where T::ItemName: Eq,

impl<T: AstInfo> StructuralPartialEq for SetExpr<T>