SQL 存储过程的 CREATE PROCEDURE 语法
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。
暂无文字说明，以下仍保留原始链接与版本事实。
自定义函数、存储过程和触发器
说明
所选版本: PostgreSQL 18
不支持
比较版本
原始文档链接
完整来源事实与出处
legacy · center · 2f521e14d26756795c8a2a1433b4ee9c97f0d2400892503781f612f073773bed
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