Struct postgres_parser::sys::ResTarget

#[repr(C)]pub struct ResTarget {
    pub type_: NodeTag,
    pub name: *mut c_char,
    pub indirection: *mut List,
    pub val: *mut Node,
    pub location: c_int,
}

ResTarget result target (used in target list of pretransformed parse trees)

In a SELECT target list, 'name' is the column label from an 'AS ColumnLabel' clause, or NULL if there was none, and 'val' is the value expression itself. The 'indirection' field is not used.

INSERT uses ResTarget in its targetcolumnnames list. Here, 'name' is the name of the destination column, 'indirection' stores any subscripts attached to the destination, and 'val' is not used.

In an UPDATE target list, 'name' is the name of the destination column, 'indirection' stores any subscripts attached to the destination, and 'val' is the expression to assign.

See A_Indirection for more info about what can appear in 'indirection'.

Fields

type_: NodeTag

name: *mut c_char

indirection: *mut List

column name or NULL

val: *mut Node

subscripts, field names, and '*', or NIL

location: c_int

the value expression to compute or assign

Trait Implementations

impl Debug for ResTarget

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

Formats the value using the given formatter.

impl Default for ResTarget

fn default() -> Self

Returns the "default value" for a type.

impl Eq for ResTarget

impl Hash for ResTarget

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<ResTarget> for ResTarget

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

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

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

This method tests for !=.

impl StructuralEq for ResTarget

impl StructuralPartialEq for ResTarget