有谁知道 autovacuum 在数据库的意义上意味着什么？
最佳答案
特定于 PostgreSQL这意味着:
PostgreSQL's VACUUM command has to run on a regular basis for several reasons:
1.To recover or reuse disk space occupied by updated or deleted rows.
2.To update data statistics used by the PostgreSQL query planner.
3.To protect against loss of very old data due to transaction ID wraparound.
关于database - Autovacuum - 数据库，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/3222468/