HonahX opened a new issue, #3379:
URL: https://github.com/apache/polaris/issues/3379
### Describe the bug
Currently, when updating write.data.path of the table to a subdir under the
table location, it will fail the location overlap check.
### To Reproduce
For example
```
spark-sql> ALTER TABLE tb1 SET TBLPROPERTIES (
'write.data.path' = '<tableLocation>/alternative_data'
);
org.apache.iceberg.exceptions.ForbiddenException: Forbidden: Unable to
create table at location 's3://<table_location>' because it conflicts with
existing table or namespace at location 's3://<table_location>`
```
### Actual Behavior
_No response_
### Expected Behavior
The `validateNoLocationOverlap` should only prevent updating table location
to be the same or child of sibling table's locations, not itself. Setting
`write.data.path` to `<table_location>/alternative` instead of the default
`<table_location>/data` should be a valid use case
### Additional context
_No response_
### System information
_No response_
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