Генерирует SQL формата:
`
BEGIN;
CREATE TEMP TABLE tmp_<таблица> AS TABLE <таблица> WITH NO DATA;
ALTER TABLE <таблица> DISABLE TRIGGER ALL;
COPY tmp_<таблица> ("<self.dict_internal_pk_field>", "field2", "field3") FROM STDIN WITH (FORMAT text);
b962e385-610b-4d0a-806f-03311477a8f2 7026020 1.2.643.5.1.13.13.12.1.30.72291
585193d7-d60a-4c5a-aa3e-d5cfd0f4bd77 7016244 1.2.643.5.1.13.13.12.4.16.63211
\.
UPDATE <таблица> AS t SET field2 = tmp.field2, field3 = tmp.field3 FROM tmp_<таблица> AS tmp WHERE t.<self.dict_internal_pk_field> = tmp.<self.dict_internal_pk_field>;
INSERT INTO <таблица> SELECT * FROM tmp_<таблица> ON CONFLICT (<self.dict_internal_pk_field>) DO NOTHING;
ALTER TABLE <таблица> ENABLE TRIGGER ALL;
REINDEX TABLE <таблица>;
COMMIT;
`