temp

apis/python/src/tiledbsoma/_dataframe.py

@@ -830,7 +830,7 @@ def _fill_out_slot_soma_domain(
         # Here the slot_domain isn't specified by the user; we're setting it.
         # The SOMA spec disallows negative soma_joinid.
         if index_column_name == SOMA_JOINID:
-            slot_domain = (0, 2**31 - 2)  # R-friendly, which 2**63-1 is not
+            slot_domain = 2**63-1
         else:
             saturated_range = True
     elif np.issubdtype(dtype, NPFloating):

apis/python/src/tiledbsoma/_sparse_nd_array.py

@@ -490,8 +490,10 @@ def _dim_capacity_and_extent(
         int64 is returned for the capacity.
         """
         if dim_shape is None:
-            dim_capacity = 2**31 - 2  # Make this friendly for reads by tiledbsoma-r
+            dim_capacity = 2**63-1
             dim_extent = min(dim_capacity, create_options.dim_tile(dim_name, 2048))
+            # Avoid core array-creation error since max must have room for one tile extent
+            dim_capacity -= dim_extent
         else:
             if dim_shape <= 0:
                 raise ValueError(

libtiledbsoma/test/common.cc

@@ -35,12 +35,9 @@
 
 namespace helper {
 
-// This non-obvious number is:
-// * Something that fits into signed 32-bit integer for R-friendliness;
-// * Is a comfortable tile-extent distance away from 2^31-1 for default
-//   core tile extent. (Using 2^31-1 exactly would result in a core
-//   array-creation error.)
-const int CORE_DOMAIN_MAX = 2147483646;
+// This is 2**63-1, minus 1,000,000 to leave room for core tile extent.
+// (Using 2**63-1 exactly would result in a core array-creation error.)
+const int64_t CORE_DOMAIN_MAX = 9223372036853775808;
 
 static std::unique_ptr<ArrowSchema> _create_index_cols_info_schema(
     const std::vector<DimInfo>& dim_infos);