OverwriteMerger (Pinot local segment implementations 0.12.1 API)

java.lang.Object
- org.apache.pinot.segment.local.upsert.merger.OverwriteMerger

All Implemented Interfaces:

PartialUpsertMerger
```
public class OverwriteMerger
extends Object
implements PartialUpsertMerger
```
Merges 2 records and returns the merged record. Overwrite the existing value for the given field. Then return the merged record.

- Method Summary
  
  Modifier and Type Method Description
  
  Object merge(Object previousValue, Object currentValue)
  Handle partial upsert merge.
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - merge
```
public Object merge(Object previousValue,
                    Object currentValue)
```
    Description copied from interface: PartialUpsertMerger
    
    Handle partial upsert merge.
    
    Specified by:
    
    merge in interface PartialUpsertMerger
    
    Parameters:
    
    previousValue - the value of given field from the last derived full record during ingestion.
    
    currentValue - the value of given field from the new consumed record.
    
    Returns:
    
    a new value after merge