Comments (4)
antonio-antuan
commented on July 17, 2024
2
Решил-таки заняться сам. Но натолкнулся на одну проблему. Если вкратце, то есть три варианта:
- полностью перевести генерируемый DDL на новый формат (читай - не поддерживать старые версии КХ, в которых этой фичи нет)
- убрать совместимость имеющегося pyhon-кода с новыми версиями clickhouse-sqlalchemy
- провести серьезный и основательный рефактор
Причина кроется в аргументах __init__ класса MergeTree и его сабклассах, а также в visit_engine, где вызывается get_params.
PoC первого варианта есть в этом коммите, при заданном для таблицы движке MergeTree('date', ('date', 'x')) выдаст ENGINE = MergeTree PARTITION BY date ORDER BY (date, x) SETTINGS index_granularity=8192
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xzkostyan
commented on July 17, 2024
Выглядит не так сложно, добавлю.
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xzkostyan
commented on July 17, 2024
Привет!
Думаю версия 54310 достаточно старая и можно полностью перевести DDL на новый формат.
Идею по рефакторингу полностью поддерживаю: самому не особо понравилось как вышло с get_params.
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antonio-antuan
commented on July 17, 2024
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