类型: | real |
默认: | 0.5 |
最低限度: | 0 |
最大: | 1 |
上下文: | sighup |
重新开始: | false |
指定检查点完成的目标,作为检查点之间总时间的一部分。默认是 0.5。 这个参数只能在postgresql.conf文件中或在服务器命令行上设置。
建议 [EN]
Defines the fraction of one checkpoint_interval over which to spread checkpoints. The default value works for most users.
在 StackOverflow
在 pgsql-hackers
- Re: Make use of assign_checkpoint_completion_target() to calculate CheckPointSegments correctly
- Re: New strategies for freezing, advancing relfrozenxid early
- Make use of assign_checkpoint_completion_target() to calculate CheckPointSegments correctly
- Re: Postgres restart in the middle of exclusive backup and the presence of backup_label file