Wiki / Hooks

Hook for plugins to get control in get_attavgwidth()

Interface type

get_attavgwidth_hook_type

Header

src/include/utils/lsyscache.h

Subsystem

Statistics and estimation

Initial value

NULL (no hook installed)

signature

typedef int32 (*get_attavgwidth_hook_type) (Oid relid, AttrNumber attnum); extern PGDLLIMPORT get_attavgwidth_hook_type get_attavgwidth_hook;