| ddbh3_bigint_to_strings | Convert H3 string or UBIGINT indexes to other representations |
| ddbh3_create_conn | Create a DuckDB connection with spatial and h3 extensions |
| ddbh3_default_conn | Get or create default DuckDB connection |
| ddbh3_get_center_child | Get parent and children H3 cells |
| ddbh3_get_children | Get parent and children H3 cells |
| ddbh3_get_child_pos | Get the position of an H3 cell within its parent |
| ddbh3_get_hierarchy | Get parent and children H3 cells |
| ddbh3_get_icosahedron_faces | Get the icosahedron faces of H3 cell indexes |
| ddbh3_get_n_children | Get parent and children H3 cells |
| ddbh3_get_parent | Get parent and children H3 cells |
| ddbh3_get_resolution | Get the resolution of H3 cell indexes |
| ddbh3_h3_to | Convert H3 string or UBIGINT indexes to other representations |
| ddbh3_h3_to_lat | Convert H3 string or UBIGINT indexes to other representations |
| ddbh3_h3_to_lon | Convert H3 string or UBIGINT indexes to other representations |
| ddbh3_h3_to_points | Convert H3 string or UBIGINT indexes to other representations |
| ddbh3_h3_to_spatial | Convert H3 string or UBIGINT indexes to other representations |
| ddbh3_h3_to_vertex | Convert H3 cell indexes to vertex representations |
| ddbh3_h3_to_vertexes | Convert H3 cell indexes to vertex representations |
| ddbh3_is | Check properties of H3 cell indexes |
| ddbh3_is_h3 | Check properties of H3 cell indexes |
| ddbh3_is_pentagon | Check properties of H3 cell indexes |
| ddbh3_is_res_class_iii | Check properties of H3 cell indexes |
| ddbh3_is_valid | Check properties of H3 cell indexes |
| ddbh3_is_vertex | Check properties of H3 cell indexes |
| ddbh3_lonlat_to | Convert longitude and latitude to H3 cell representations |
| ddbh3_lonlat_to_h3 | Convert longitude and latitude to H3 cell representations |
| ddbh3_lonlat_to_spatial | Convert longitude and latitude to H3 cell representations |
| ddbh3_points_to | Convert spatial points to H3 cell representations |
| ddbh3_points_to_h3 | Convert spatial points to H3 cell representations |
| ddbh3_points_to_spatial | Convert spatial points to H3 cell representations |
| ddbh3_strings_to_bigint | Convert H3 string or UBIGINT indexes to other representations |
| ddbh3_vertex | Convert H3 cell indexes to vertex representations |
| ddbh3_vertex_to_lat | Convert H3 cell indexes to vertex representations |
| ddbh3_vertex_to_lon | Convert H3 cell indexes to vertex representations |
| ddbh3_vertex_to_spatial | Convert H3 cell indexes to vertex representations |