Struct ProjectionSelect 

pub struct ProjectionSelect {
    pub projection: Vec<SelectItem>,
    pub order_by: Option<OrderBy>,
    pub group_by: Option<GroupByExpr>,
}

Query syntax for ClickHouse ADD PROJECTION statement. Its syntax is similar to SELECT statement, but it is used to add a new projection to a table. Syntax is SELECT <COLUMN LIST EXPR> [GROUP BY] [ORDER BY]

ClickHouse

Fields

projection: Vec<SelectItem>

The list of projected select items.

order_by: Option<OrderBy>

Optional ORDER BY clause for the projection-select.

group_by: Option<GroupByExpr>

Optional GROUP BY clause for the projection-select.

Trait Implementations

impl Clone for ProjectionSelect

fn clone(&self) -> ProjectionSelect

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ProjectionSelect

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

Formats the value using the given formatter.

impl Display for ProjectionSelect

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

Formats the value using the given formatter.

impl Hash for ProjectionSelect

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 Ord for ProjectionSelect

fn cmp(&self, other: &ProjectionSelect) -> 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,

Restrict a value to a certain interval.

impl PartialEq for ProjectionSelect

fn eq(&self, other: &ProjectionSelect) -> 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 PartialOrd for ProjectionSelect

fn partial_cmp(&self, other: &ProjectionSelect) -> 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 Spanned for ProjectionSelect

fn span(&self) -> Span

Return the Span (the minimum and maximum Location) for this AST node, by recursively combining the spans of its children.

impl Visit for ProjectionSelect

fn visit<V: Visitor>(&self, visitor: &mut V) -> ControlFlow<V::Break>

Visit this node with the provided Visitor.

impl VisitMut for ProjectionSelect

fn visit<V: VisitorMut>(&mut self, visitor: &mut V) -> ControlFlow<V::Break>

Mutably visit this node with the provided VisitorMut.

impl Eq for ProjectionSelect

impl StructuralPartialEq for ProjectionSelect