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Hooks for plugins to get control when we ask for stats

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Interface type

get_relation_stats_hook_type

Header

src/include/utils/selfuncs.h

Subsystem

Statistics and estimation

Initial value

NULL (no hook installed)

signature

typedef bool (*get_relation_stats_hook_type) (PlannerInfo *root, RangeTblEntry *rte, AttrNumber attnum, VariableStatData *vardata); extern PGDLLIMPORT get_relation_stats_hook_type get_relation_stats_hook;