Struct FunctionDef 

pub struct FunctionDef {

    pub name: String,
    pub args_repr: String,
    pub returns: String,
    pub language: String,
    pub body: String,
    pub owner: Option<String>,
    pub acl: Vec<AclItem>,
    pub volatility: u8,
    pub strict: bool,
    pub security_definer: bool,
    pub leakproof: bool,
    pub parallel: u8,
    pub cost: Option<f64>,
    pub rows: Option<f64>,
}

v7.12.4 — catalogued user-defined function. body is the raw source text between $$ ... $$; the engine re-parses it on invocation. This keeps the storage codec stable when the PL/pgSQL surface grows (no breaking-change risk on the disk format).

Fields

name: String

args_repr: String

Display form of the argument list, e.g. "(name TEXT, ts TIMESTAMP)". Empty "()" for the trigger function shape. Parser-side canonicalised before storage.

returns: String

Display form of the return type, e.g. "TRIGGER" / "INT" / "SETOF text". The engine special-cases "TRIGGER" (case-insensitive) to gate trigger-only semantics (NEW/OLD).

language: String

LANGUAGE clause, lowercased. "plpgsql" / "sql".

body: String

Source body of the function. PL/pgSQL: includes the surrounding BEGIN ... END;. SQL: includes the statement(s). The engine re-parses on invocation; bad bodies surface as a parse error at CALL time, not CREATE.

owner: Option<String>

v7.39 (read01 round 61) — the role that ran CREATE FUNCTION.

acl: Vec<AclItem>

v7.39 (read01 round 61) — explicit GRANTs (PG pg_proc.proacl). EMPTY is NOT “nobody may call it”: PG grants EXECUTE to PUBLIC by default, and leaves proacl NULL to say so. The list materialises on the first GRANT / REVOKE.

volatility: u8

v7.39 (round 322, V46) — IMMUTABLE / STRICT / PARALLEL SAFE / SECURITY DEFINER / LEAKPROOF / COST / ROWS. strict is the only one with execution semantics today (a NULL argument yields a NULL result without running the body); the rest are recorded so pg_get_functiondef and pg_proc report what was declared.

strict: bool

security_definer: bool

leakproof: bool

parallel: u8

cost: Option<f64>

rows: Option<f64>

Trait Implementations

impl Clone for FunctionDef

fn clone(&self) -> FunctionDef

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FunctionDef

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

Formats the value using the given formatter.

impl PartialEq for FunctionDef

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for FunctionDef