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get_index_stats_hook: core extension hook declared in src/include/utils/selfuncs.h. The exact interface and call sites are recorded below.

Interface type

get_index_stats_hook_type

Header

src/include/utils/selfuncs.h

Subsystem

Statistics and estimation

Initial value

NULL (no hook installed)

signature

typedef bool (*get_index_stats_hook_type) (PlannerInfo *root, Oid indexOid, AttrNumber indexattnum, VariableStatData *vardata); extern PGDLLIMPORT get_index_stats_hook_type get_index_stats_hook;