fix float value precision calculation

Author: pik94

data_diff/databases/databricks.py

@@ -1,3 +1,4 @@
+import math
 from typing import Dict, Sequence
 import logging
 
@@ -112,7 +113,7 @@ def _process_table_schema(
  row = (row[0], row_type, None, None, 0)
 
  elif issubclass(type_cls, Float):
- numeric_precision = self._convert_db_precision_to_digits(row[2])
+ numeric_precision = math.ceil(row[2] / math.log(2, 10))
  row = (row[0], row_type, None, numeric_precision, None)
 
  elif issubclass(type_cls, Decimal):