Use the newer BDB backend database.
使用新的bdb后端数据库。
For BDB tables, it usually doesn't make much difference whether you use fixed-length or variable-length columns.
对BDB表,通常无论你用固定长度列或可变长度列没有太大差别。
I don't know of any implementation that uses a relational database to do inefficiently what BDB does efficiently.
我不知道任何使用关系数据库的实现如何低效地执行BDB做起来很高效的事情。
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