Struct postgres_parser::nodes::FieldSelect

pub struct FieldSelect {
    pub arg: Option<Box<Expr>>,
    pub fieldnum: AttrNumber,
    pub resulttype: Oid,
    pub resulttypmod: i32,
    pub resultcollid: Oid,
}

FieldSelect

FieldSelect represents the operation of extracting one field from a tuple value. At runtime, the input expression is expected to yield a rowtype Datum. The specified field number is extracted and returned as a Datum.

Fields

arg: Option<Box<Expr>>

fieldnum: AttrNumber

resulttype: Oid

resulttypmod: i32

resultcollid: Oid

Trait Implementations

impl Debug for FieldSelect

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for FieldSelect

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

Deserialize this value from the given Serde deserializer.

impl Eq for FieldSelect

impl PartialEq<FieldSelect> for FieldSelect

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

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

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

This method tests for !=.

impl Serialize for FieldSelect

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 FieldSelect

impl StructuralPartialEq for FieldSelect