class  | 
AColGroupOffset | 
 Base class for column groups encoded with various types of bitmap encoding. 
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class  | 
ASDCZero | 
  | 
class  | 
ColGroupDDC | 
 Class to encapsulate information about a column group that is encoded with dense dictionary encoding (DDC). 
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class  | 
ColGroupOLE | 
 Class to encapsulate information about a column group that is encoded with simple lists of offsets for each set of
 distinct values. 
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class  | 
ColGroupRLE | 
 A group of columns compressed with a single run-length encoded bitmap. 
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class  | 
ColGroupSDCSingleZeros | 
 Column group that sparsely encodes the dictionary values. 
 | 
class  | 
ColGroupSDCZeros | 
 Column group that sparsely encodes the dictionary values. 
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