Code review comment: Perspectives:  1. Bug risks:    - In the revised code, there are no apparent bug risks.  2. Naming:    - The method `getPartitionKeysByValue` can be renamed to something more descriptive, such as `fetchPartitionsByValues`.  3. Code style and best practices:    - The import statements at the top of the file could be organized in a more readable manner.    - It's generally recommended to avoid wildcard imports (`import static ... *`) and instead import specific classes or methods individually.  4. Compatibility:    - No specific issues regarding compatibility.  5. Simplicity:    - The revised code is straightforward and easy to understand.  6. Optimization points:    - In the `partitionExists` method, when the `HiveTable` object has a boolean type partition column, all partition keys are fetched from the client. However, we can optimize this by fetching only the relevant partition key using `getPartitionNamesByFilter`.    - Additionally, instead of using `contains` to check if the expected partition key exists, it would be more efficient to use a `HashSet` or `HashSet.contains` for better performance.  Revised code with improvements implemented:  ```java import static com.google.common.collect.ImmutableList.toImmutableList; import static com.google.common.collect.ImmutableMap.toImmutableMap; import static com.google.common.collect.Iterables.getOnlyElement; import static com.starrocks.connector.PartitionUtil.toHivePartitionName;  // Import specific classes instead of wildcard import import com.starrocks.connector.hive.HiveMetastoreApiConverter; import com.starrocks.connector.hive.HiveTable;  import java.util.HashSet; import java.util.List; import java.util.Set; import java.util.stream.Collectors;  public class YourClass {     // ...      @Override     public boolean partitionExists(Table table, List<String> partitionValues) {         HiveTable hiveTable = (HiveTable) table;         String dbName = hiveTable.getDbName();         String tableName = hiveTable.getTableName();          if (!hiveTable.hasBooleanTypePartitionColumn()) {             return !client.getPartitionKeysByValue(dbName, tableName, partitionValues).isEmpty();         } else {             Set<String> allPartitionNames = new HashSet<>(client.getPartitionNamesByFilter(                     dbName,                     tableName,                     hiveTable.getPartitionColumnNames(),                     partitionValues             ));                          String hivePartitionName = toHivePartitionName(hiveTable.getPartitionColumnNames(), partitionValues);             return allPartitionNames.contains(hivePartitionName);         }     }      // ... } ```  Note: In the revised code, some parts are assumed or missing due to incomplete context. Make sure to adapt the changes accordingly and verify their correctness within the surrounding codebase.

Code under review:
public Partition getPartition(String dbName, String tblName, List<String> partitionValues) {
        StorageDescriptor sd;
        Map<String, String> params;
        if (partitionValues.size() > 0) {
            org.apache.hadoop.hive.metastore.api.Partition partition =
                    client.getPartition(dbName, tblName, partitionValues);
            sd = partition.getSd();
            params = partition.getParameters();
        } else {
            org.apache.hadoop.hive.metastore.api.Table table = client.getTable(dbName, tblName);
            sd = table.getSd();
            params = table.getParameters();
        }

        return HiveMetastoreApiConverter.toPartition(sd, params);
    }

Line commented on: Map<String, String> params;

Revised code:
public Partition getPartition(String dbName, String tblName, List<String> partitionValues) {
        StorageDescriptor sd;
        Map<String, String> params;
        if (partitionValues.size() > 0) {
            org.apache.hadoop.hive.metastore.api.Partition partition =
                    client.getPartition(dbName, tblName, partitionValues);
            sd = partition.getSd();
            params = partition.getParameters();
        } else {
            org.apache.hadoop.hive.metastore.api.Table table = client.getTable(dbName, tblName);
            sd = table.getSd();
            params = table.getParameters();
        }

        return HiveMetastoreApiConverter.toPartition(sd, params);
    }