タイプ: | bool |
デフォルト: | on |
コンテキスト: | user |
再起動: | false |
問い合わせプランナがハッシュ集約計画型を選択することを有効もしくは無効にします。デフォルトはon
です。
推奨事項 [EN]
For interactive session use only when troubleshooting queries.
On StackOverflow
On pgsql-hackers
- Re: Todo: Teach planner to evaluate multiple windows in the optimal order
- Is select_outer_pathkeys_for_merge() too strict now we have Incremental Sorts?
- Re: Why enable_hashjoin Completely disables HashJoin
- [PATCH] Teach planner to further optimize sort in distinct
- Re: [PATCH] Teach planner to further optimize sort in distinct