Struct postgres_parser::sys::MultiAssignRef

#[repr(C)]pub struct MultiAssignRef {
    pub type_: NodeTag,
    pub source: *mut Node,
    pub colno: c_int,
    pub ncolumns: c_int,
}

MultiAssignRef element of a row source expression for UPDATE

In an UPDATE target list, when we have SET (a,b,c) = rowvaluedexpression, we generate separate ResTarget items for each of a,b,c. Their "val" trees are MultiAssignRef nodes numbered 1..n, linking to a common copy of the rowvaluedexpression (which parse analysis will process only once, when handling the MultiAssignRef with colno=1).

Fields

type_: NodeTag

source: *mut Node

colno: c_int

the rowvalued expression

ncolumns: c_int

column number for this target (1..n)

Trait Implementations

impl Debug for MultiAssignRef

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

Formats the value using the given formatter.

impl Default for MultiAssignRef

fn default() -> Self

Returns the "default value" for a type.

impl Eq for MultiAssignRef

impl Hash for MultiAssignRef

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, 

Feeds a slice of this type into the given [Hasher].

impl PartialEq<MultiAssignRef> for MultiAssignRef

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

impl StructuralEq for MultiAssignRef

impl StructuralPartialEq for MultiAssignRef