Enum FunctionChange 

pub enum FunctionChange {
    Create(Function),
    Drop {
        qname: QualifiedName,
        args: NormalizedArgTypes,
    },
    CreateOrReplace(Function),
    ReplaceViaDropCreate {
        source: Function,
        catalog: Function,
    },
    SetComment {
        qname: QualifiedName,
        args: NormalizedArgTypes,
        comment: Option<String>,
    },
}

A structural change to a single user-defined function.

Variants

Create(Function)

Create a new function.

Drop

Drop an existing function by qualified name and normalized arg types.

Fields

qname: QualifiedName

Qualified name of the function.

args: NormalizedArgTypes

Normalized argument types (IN/INOUT/VARIADIC only) used to disambiguate overloads in the DROP FUNCTION statement.

CreateOrReplace(Function)

Replace the function body and/or attributes using CREATE OR REPLACE FUNCTION. Only valid when function_can_or_replace returns true.

ReplaceViaDropCreate

The function’s return type or language changed in a way that PG’s CREATE OR REPLACE FUNCTION rejects. The planner emits a plain DROP FUNCTION … (NOT cascade) followed by CREATE FUNCTION. The DROP fails loudly if dependents exist — by design, there is no silent cascade; the operator must resolve dependents first.

Fields

source: Function

The desired function (source).

catalog: Function

The existing function (catalog / live database).

SetComment

Set (or clear) COMMENT ON FUNCTION.

Fields

qname: QualifiedName

Qualified name of the function.

args: NormalizedArgTypes

Normalized argument types for disambiguation.

comment: Option<String>

New comment (None clears the comment).

Trait Implementations

impl Clone for FunctionChange

fn clone(&self) -> FunctionChange

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FunctionChange

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for FunctionChange

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for FunctionChange

impl PartialEq for FunctionChange

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for FunctionChange

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for FunctionChange