paleolimbot commented on code in PR #8:
URL: https://github.com/apache/sedona-db/pull/8#discussion_r2316884697


##########
python/sedonadb/python/sedonadb/testing.py:
##########
@@ -183,6 +188,10 @@ def result_to_tuples(self, result, *, wkt_precision=None) 
-> List[Tuple[str]]:
             # isinstance() does not always work with pyarrow in pytest
             if _type_is_geoarrow(col.type):
                 columns.append(ga.format_wkt(col, 
precision=wkt_precision).to_pylist())
+            elif datatype == "binary":
+                binary_lst = col.cast(pa.binary()).to_pylist()
+                # Convert to hex format for comparison e.g 
b'0101000000000000000000F03F000000000000F03F',
+                columns.append([b.hex().upper().encode() for b in binary_lst])

Review Comment:
   I see! Maybe:
   
   ```python
   elif pa.types.is_binary(col.type) or pa.types.is_binary_view(col.type) or 
pa.types.is_large_binary(col.type):
      columns.append([None if b is None else b.hex().upper() for b in 
binary_lst])
   ```
   
   (i.e., use the column type and not an extra argument, handle nulls, and 
return a string instead of utf-8 bytes).



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