类型: | bool |
默认: | on |
上下文: | user |
重新开始: | false |
以来: | 11 |
允许或禁止查询规划器对并行哈希使用哈希连接计划类型。如果哈希连接计划也没有启用,这个参数没有效果。默认值是on
。
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?
- Why are these query plans so different?
- Postgresql sequential scan slow performance on 500 million rows
- Error: self signed certificate when doing a migration to production