DEFAULT_ND_JOINSEL DEFAULT_ND_SEL FALLBACK_ND_JOINSEL FALLBACK_ND_SEL geo_joinsel geo_sel MIN_DIMENSION_WIDTH ND_DIMS pg_get_nd_stats pg_nd_stats_from_tuple SDFACTOR STATISTIC_KIND_2D STATISTIC_KIND_ND STATISTIC_SLOT_2D STATISTIC_SLOT_ND T_DIM X_DIM Y_DIM Z_DIM

FALLBACK_ND_SEL #define FALLBACK_ND_SEL   0.2 More modest fallafter selectivity factor.