Struct postgres_parser::nodes::MultiAssignRef

pub struct MultiAssignRef {
    pub source: Option<Box<Node>>,
    pub colno: i32,
    pub ncolumns: i32,
}

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

source: Option<Box<Node>>

colno: i32

ncolumns: i32

Trait Implementations

impl Debug for MultiAssignRef

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for MultiAssignRef

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error> where
    __D: Deserializer<'de>, 

Deserialize this value from the given Serde deserializer.

impl Eq for MultiAssignRef

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 Serialize for MultiAssignRef

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error> where
    __S: Serializer, 

Serialize this value into the given Serde serializer.

impl StructuralEq for MultiAssignRef

impl StructuralPartialEq for MultiAssignRef