| Package | Description | 
|---|---|
| org.apache.hadoop.hbase.regionserver | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | ExplicitColumnTrackerThis class is used for the tracking and enforcement of columns and numbers
 of versions during the course of a Get or Scan operation, when explicit
 column qualifiers have been asked for in the query. | 
| class  | ScanWildcardColumnTrackerKeeps track of the columns for a scan if they are not explicitly specified | 
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