Christophe Pettus: All Your GUCs in a Row: max_wal_size
`max_wal_size` is a checkpoint trigger, not a maximum—and the real cost is paid by setting it too low, not too high.
原文：https://www.a8q9.cn/en/article/christophe-pettus-all-your-gucs-in-a-row-max-wal-size-7e3e80.html