类型: | bool |
默认: | on |
上下文: | user |
重新开始: | false |
允许或禁止查询规划器使用顺序扫描计划类型。它不可能完全禁止顺序扫描,但是关闭这个变量将使得规划器尽可能优先使用其他方法。默认值是on
。
建议 [EN]
For interactive session use only when troubleshooting queries.
在 StackOverflow
在 pgsql-hackers
- Re: POC, WIP: OR-clause support for indexes
- Re: BitmapHeapScan streaming read user and prelim refactoring
- Re: Optimizing nbtree ScalarArrayOp execution, allowing multi-column ordered scans, skip scan
- Re: Why is FOR ORDER BY function getting called when the index is handling ordering?
- Re: POC: GROUP BY optimization