Struct Select 

pub struct Select {
    pub distinct: Distinct,
    pub targets: Slice,
    pub from: Slice,
    pub filter: ExprRef,
    pub group_by: Slice,
    pub group_by_all: bool,
    pub having: ExprRef,
}

One select block.

Every optional expression is NONE when it is absent rather than an Option<u32>, which keeps the struct at forty bytes and keeps the absent case spelled the same way it is spelled in the parse tree arena.

Fields

distinct: Distinct

The DISTINCT clause.

targets: Slice

The target list, as a run of Target.

from: Slice

The FROM list, as a run of SourceRef. Several entries mean a cross product.

filter: ExprRef

The WHERE expression, or NONE.

group_by: Slice

The GROUP BY list, as a run of ExprRef.

group_by_all: bool

Whether the clause was GROUP BY ALL.

having: ExprRef

The HAVING expression, or NONE.

Implementations

impl Select

pub const fn empty() -> Self

An empty select, which is what the transformer fills in from.

Trait Implementations

impl Clone for Select

fn clone(&self) -> Select

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Select

impl Debug for Select

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

Formats the value using the given formatter.

impl Eq for Select

impl PartialEq for Select

fn eq(&self, other: &Select) -> bool

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Select