HIVE-29525: Iceberg partitioned columns are not reflected by RelOptHiveTable

[kasakrisz]

What changes were proposed in this pull request?

Why are the changes needed?

Does this PR introduce any user-facing change?

How was this patch tested?

mvn test -Dtest.output.overwrite -Dtest=TestIcebergCliDriver -Dqfile=merge_iceberg_copy_on_write_partitioned.q,merge_iceberg_copy_on_write_unpartitioned.q,merge_iceberg_orc.q,merge_iceberg_partitioned_orc.q,merge_with_null_check_on_joining_col.q,update_iceberg_copy_on_write_partitioned.q,update_iceberg_copy_on_write_unpartitioned.q,update_iceberg_partitioned_avro.q,update_iceberg_partitioned_orc.q,update_iceberg_partitioned_parquet.q,update_iceberg_unpartitioned_parquet.q -pl itests/qtest-iceberg -Pitests

[sonarqubecloud]

Quality Gate passed

Issues
2 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
1.6% Duplication on New Code

See analysis details on SonarQube Cloud