after2D before2D Bigintspan_spgist_config contain2D distance_span_nodespan Floatspan_spgist_config get_quadrant2D Intspan_spgist_config left2D overAfter2D overBefore2D overlap2D overLeft2D overRight2D Period_spgist_config right2D Set_spgist_compress SortedSpan Span_kdtree_choose Span_kdtree_inner_consistent Span_kdtree_picksplit span_level_cmp span_lower_qsort_cmp Span_quadtree_choose Span_quadtree_inner_consistent Span_quadtree_picksplit span_spgist_get_span Span_spgist_inner_consistent Span_spgist_leaf_consistent span_upper_qsort_cmp spannode_copy spannode_init spannode_kdtree_next spannode_quadtree_next Spanset_spgist_compress

spannode_init() static void spannode_init ( SpanNode *  nodebox, meosType  spantype, meosType  basetype  ) static Initialize the traversal value. In the beginning, we don't have any restrictions. We have to initialize the struct to cover the whole 2D space.