interval_cmp_lower interval_cmp_upper non_negative tbox_gist_penalty tbox_gist_picksplit tbox_gist_same tbox_gist_union tbox_index_consistent_leaf tnumber_gist_compress tnumber_gist_consistent

tbox_gist_penalty() Datum tbox_gist_penalty ( PG_FUNCTION_ARGS  ) GiST penalty method for temporal boxes. As in the R-tree paper, we use change in area as our penalty metric