Wiki / 扩展钩子

Hook for plugins to get control in get_relation_info()

此版本暂无所选语言的定义，以下显示原始英文内容。

Interface type

get_relation_info_hook_type

Header

src/include/optimizer/plancat.h

Subsystem

Query planning

Initial value

NULL (no hook installed)

signature

typedef void (*get_relation_info_hook_type) (PlannerInfo *root, Oid relationObjectId, bool inhparent, RelOptInfo *rel); extern PGDLLIMPORT get_relation_info_hook_type get_relation_info_hook;