Fokko commented on code in PR #6159:
URL: https://github.com/apache/iceberg/pull/6159#discussion_r1025777318
##########
python/pyiceberg/utils/config.py:
##########
@@ -44,7 +44,7 @@ def merge_config(lhs: RecursiveDict, rhs: RecursiveDict) ->
RecursiveDict:
if isinstance(lhs_value, dict) and isinstance(rhs_value, dict):
# If they are both dicts, then we have to go deeper
new_config[rhs_key] = merge_config(lhs_value, rhs_value)
- else:
+ elif isinstance(lhs_value, str) and isinstance(rhs_value, str):
Review Comment:
I think we're almost there, but we changed the behavior a bit here. Here we
check if both the lhs and rhs are set, but one or both of them can be None. How
about:
```
else:
# Take the non-null value, with precedence on rhs
new_config[rhs_key] = lhs_value or rhs_value
```
and then we can remove the `_coalesce` function (it is only used in one
place).
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