| Class | Description |
|---|---|
| AColGroup |
Abstract Class that is the lowest class type for the Compression framework.
|
| ColGroupCompressed |
Base class for column groups encoded Encoded in a compressed manner.
|
| ColGroupConst | |
| ColGroupDDC |
Class to encapsulate information about a column group that is encoded with dense dictionary encoding (DDC).
|
| ColGroupEmpty | |
| ColGroupFactory |
Factory pattern for constructing ColGroups.
|
| ColGroupIO |
This has the IO responsibility of ColGroups, such that it enables to read and write ColGroups to and from a DataInput
and DataOutput
|
| ColGroupOffset |
Base class for column groups encoded with various types of bitmap encoding.
|
| ColGroupOLE |
Class to encapsulate information about a column group that is encoded with simple lists of offsets for each set of
distinct values.
|
| ColGroupRLE |
A group of columns compressed with a single run-length encoded bitmap.
|
| 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.
|
| ColGroupSizes | |
| ColGroupUncompressed |
Column group type for columns that are stored as dense arrays of doubles.
|
| ColGroupValue |
Base class for column groups encoded with value dictionary.
|
| Enum | Description |
|---|---|
| AColGroup.CompressionType |
Public super types of compression ColGroups supported
|
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