Function PLy_output

src/pl/plpython/plpy_plpymodule.c:413–578

}

static PyObject *
PLy_output(volatile int level, PyObject *self, PyObject *args, PyObject *kw)
{
	int			sqlstate = 0;
	char	   *volatile sqlstatestr = NULL;
	char	   *volatile message = NULL;
	char	   *volatile detail = NULL;
	char	   *volatile hint = NULL;
	char	   *volatile column_name = NULL;
	char	   *volatile constraint_name = NULL;
	char	   *volatile datatype_name = NULL;
	char	   *volatile table_name = NULL;
	char	   *volatile schema_name = NULL;
	volatile MemoryContext oldcontext;
	PyObject   *key,
			   *value;
	PyObject   *volatile so;
	Py_ssize_t	pos = 0;

	PLy_enter_python_intepreter = false;
	if (PyTuple_Size(args) == 1)
	{
		/*
		 * Treat single argument specially to avoid undesirable ('tuple',)
		 * decoration.
		 */
		PyObject   *o;

		if (!PyArg_UnpackTuple(args, "plpy.elog", 1, 1, &o))
			PLy_elog(ERROR, "could not unpack arguments in plpy.elog");
		so = PyObject_Str(o);
	}
	else
		so = PyObject_Str(args);

	if (so == NULL || ((message = PyString_AsString(so)) == NULL))
	{
		level = ERROR;
		message = dgettext(TEXTDOMAIN, "could not parse error message in plpy.elog");
	}
	message = pstrdup(message);

	Py_XDECREF(so);

	if (kw != NULL)
	{
		while (PyDict_Next(kw, &pos, &key, &value))
		{
			char	   *keyword = PyString_AsString(key);

			if (strcmp(keyword, "message") == 0)
			{
				/* the message should not be overwritten */
				if (PyTuple_Size(args) != 0)
				{
					PLy_exception_set(PyExc_TypeError, "argument 'message' given by name and position");
					return NULL;
				}