Struct ComputedRef 

pub struct ComputedRef {
    pub function: QualifiedIdentifier,
    pub relation: String,
    pub row_type: QualifiedIdentifier,
}

A computed field: a function applied to the row.

Fields

function: QualifiedIdentifier

The function to call.

relation: String

The relation whose row it takes, as it is named in the query.

row_type: QualifiedIdentifier

The type that row is, which is not always what the query can infer.

A mutation reads its rows back out of a CTE, and a CTE’s row is a record: computed_overload(record) is not unique is PostgreSQL declining to choose between the overload on items and the one on items2, because nothing said which it had. Casting the row to the relation’s own type says so, and is a no-op everywhere it was already unambiguous.

Trait Implementations

impl Clone for ComputedRef

fn clone(&self) -> ComputedRef

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ComputedRef

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ComputedRef

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for ComputedRef

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

where __S: Serializer,

Serialize this value into the given Serde serializer.