CREATE STATISTICS - "OR" 和 "IN/ANY" 统计信息
已记录的来源状态与原始语言说明；缺少版本证据时明确标为未知。
来源快照记录 PostgreSQL 8.1–18 的变化节点；历史矩阵独立记录 7.4–18 的状态。两者均未记录 PostgreSQL 19 或 20 的支持状态，较新版本明确保留为未知。这些来源声明与运行测量相互独立。
性能
说明
扩展统计信息可以帮助查询规划器为具有 "OR" 子句以及 "IN/ANY" 列表查找的查询提供更好的计划。更多信息请参见 https://www.postgresql.org/docs/13/planner-stats.html#PLANNER-STATS-EXTENDED
所选版本: PostgreSQL 18
支持
比较版本
原始文档链接
已记录旧标识: 335
完整来源事实与出处
yaml · center · 1dd22bf9a7f3ec325b894e2836fda535a25529f246a94dd41d6abbfe9997f7fd
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