advancedxy commented on PR #7733:
URL: https://github.com/apache/iceberg/pull/7733#issuecomment-1567808941

   > > If #7732 is merged, is this new setting 
`spark.sql.iceberg.locality.enabled` still needed? I think you can disable 
locality by setting `spark.datasource.iceberg.locality=false`?
   > 
   > This is needed. `SessionConfigSupport` is a mixed-in trait of 
`TableProvider`, it only takes effect for iceberg tables loaded through table 
provider, but not for those tables loaded through catalog.
   
   Ah, yeah. The options are not effective for tables loaded through catalog. 
But it may bring some confusions to users, such as:
   ```
   set spark.datasource.iceberg.locality=false; -- works only for DataFrame
   set spark.sql.iceberg.locality.enabled=false; -- works both DataFrame and 
Spark SQL
   ```
   
   I was thinking maybe we could inject a new `ResolutionRule` in 
IcebergSparkSessionExtensions that collects session configurations(including 
`spark.datasource.iceberg.xxx` and `spark.sql.iceberg.xxx` values) and set 
options to Iceberg tables. In that way, configurations are unified for 
DataFrame and Catalog tables. WDYT?


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