类型: | real |
默认: | 500000 |
最低限度: | -1 |
最大: | 1.79769e+308 |
上下文: | user |
重新开始: | false |
以来: | 11 |
设置JIT编译尝试内联函数和操作符的查询代价阈值,如果查询代价超过这个值,JIT编译就会尝试内联。内联会增加规划时间,但是可以提高执行速度。将这个参数设置成小于jit_above_cost是没有意义的。将这个参数设置为-1
会禁用内联。默认值是500000
。
在 StackOverflow
- Geoserver WFS + PostgreSQL with large table impossibly slow
- Why does "explain analyzing" this query fnish fast (showing a parallel plan), while running the actual query without "explain analyze" doesn't?
- Postgresql sequential scan slow performance on 500 million rows
- Error: self signed certificate when doing a migration to production