calc_hist_selectivity calc_hist_selectivity_contained calc_hist_selectivity_contains calc_hist_selectivity_scalar default_tnumber_selectivity get_distance get_position rbound_bsearch tnumber_cachedop tnumber_cachedop_rangeop tnumber_const_to_tbox tnumber_joinsel tnumber_sel tnumber_sel_internal

calc_hist_selectivity() static double calc_hist_selectivity ( TypeCacheEntry *  typcache, VariableStatData *  vardata, RangeType *  constval, Oid  operator  ) static Calculate range operator selectivity using histograms of range bounds. This estimate is for the portion of values that are not empty and not NULL. Note Function copied from rangetypes_selfuncs.c since it is not exported.