Enum IrForIterator 

pub enum IrForIterator {
    Values {
        exprs: Vec<IrExpr>,
        pg_type: String,
    },
    Query {
        stmt: Box<IrStmt>,
        scalar: bool,
    },
    SetReturning {
        expr: IrExpr,
        pg_type: String,
    },
}

Variants

Values

Set literal of scalar values → SQL VALUES clause.

Fields

exprs: Vec<IrExpr>

pg_type: String

Query

A derived set — for x in (select Item.label). Emitted as a one-column relation (column v, the same name the VALUES form uses) that the loop body cross-joins against, so the body runs once per row rather than once for the whole set.

Fields

stmt: Box<IrStmt>

scalar: bool

True when the statement yields scalars. When false it yields objects and the loop variable binds their id.

SetReturning

A set-returning call — for line in array_unpack(<array<json>>$lines). Kept apart from Values because PostgreSQL forbids a set-returning function inside VALUES; it goes in a select list instead.

Fields

expr: IrExpr

pg_type: String

Trait Implementations

impl Clone for IrForIterator

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for IrForIterator

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

Formats the value using the given formatter.