Transactional database systems in general are not very good at generating summary tables from log tables, because in this case row locking is almost useless.
传统的数据库一般地在从日志表中生成摘要表这方面的表现不怎么好，因为在这种情况下，行记录锁几乎没用。
Transactional database systems in general are not very good at generating summary tables from log tables, because in this case row locking is almost useless.
传统的数据库一般地在从日志表中生成摘要表这方面的表现不怎么好，因为在这种情况下，行记录锁几乎没用。
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