| Class and Description | 
|---|
| AColGroup Abstract Class that is the lowest class type for the Compression framework. | 
| AColGroup.CompressionType Public super types of compression ColGroups supported | 
| ColGroupUncompressed Column group type for columns that are stored as dense arrays of doubles. | 
| Class and Description | 
|---|
| AColGroup Abstract Class that is the lowest class type for the Compression framework. | 
| AColGroup.CompressionType Public super types of compression ColGroups supported | 
| ColGroupCompressed Base class for column groups encoded Encoded in a compressed manner. | 
| ColGroupDDC Class to encapsulate information about a column group that is encoded with dense dictionary encoding (DDC). | 
| ColGroupEmpty | 
| ColGroupOffset Base class for column groups encoded with various types of bitmap encoding. | 
| ColGroupSDC Column group that sparsely encodes the dictionary values. | 
| ColGroupSDCSingle Column group that sparsely encodes the dictionary values. | 
| ColGroupSDCSingleZeros Column group that sparsely encodes the dictionary values. | 
| ColGroupSDCZeros Column group that sparsely encodes the dictionary values. | 
| ColGroupValue Base class for column groups encoded with value dictionary. | 
| Class and Description | 
|---|
| AColGroup.CompressionType Public super types of compression ColGroups supported | 
| Class and Description | 
|---|
| AColGroup Abstract Class that is the lowest class type for the Compression framework. | 
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