Function pg_get_function_sqlbody

src/backend/utils/adt/ruleutils.c:3488–3515

}

Datum
pg_get_function_sqlbody(PG_FUNCTION_ARGS)
{
	Oid			funcid = PG_GETARG_OID(0);
	StringInfoData buf;
	HeapTuple	proctup;
	bool		isnull;

	initStringInfo(&buf);

	/* Look up the function */
	proctup = SearchSysCache1(PROCOID, ObjectIdGetDatum(funcid));
	if (!HeapTupleIsValid(proctup))
		PG_RETURN_NULL();

	(void) SysCacheGetAttr(PROCOID, proctup, Anum_pg_proc_prosqlbody, &isnull);
	if (isnull)
	{
		ReleaseSysCache(proctup);
		PG_RETURN_NULL();
	}

	print_function_sqlbody(&buf, proctup);

	ReleaseSysCache(proctup);

	PG_RETURN_TEXT_P(cstring_to_text(buf.data));
}


/*