| 类型: | real |
| 默认: | 1000 |
| 最低限度: | 0 |
| 最大: | 1.79769e+308 |
| 上下文: | user |
| 重新开始: | false |
| 以来: | 9.6 |
设置规划器对启动并行工作者进程的代价估计。默认是 1000。
在 StackOverflow
- Missing max_parallel_degree configuration parameter in PostgreSql 9.6
- Nested Loop Left Join cost too much time?
- Postgresql - not using parallelism
- Large COUNT DISTINCT performs slowly in postgresql
- Why does "explain analyzing" this query fnish fast (showing a parallel plan), while running the actual query without "explain analyze" doesn't?