See: Description
Interface | Description |
---|---|
BooleanColumnStatistics |
Statistics for boolean columns.
|
ColumnStatistics |
Statistics that are available for all types of columns.
|
DateColumnStatistics |
Statistics for DATE columns.
|
DecimalColumnStatistics |
Statistics for decimal columns.
|
DoubleColumnStatistics |
Statistics for float and double columns.
|
IntegerColumnStatistics |
Statistics for all of the integer columns, such as byte, short, int, and
long.
|
Reader |
The interface for reading ORC files.
|
RecordReader |
A row-by-row iterator for ORC files.
|
StringColumnStatistics |
Statistics for string columns.
|
StripeInformation |
Information about the stripes in an ORC file that is provided by the Reader.
|
Writer |
The interface for writing ORC files.
|
Enum | Description |
---|---|
CompressionKind |
An enumeration that lists the generic compression algorithms that
can be applied to ORC files.
|
OrcFile.Version |
Create a version number for the ORC file format, so that we can add
non-forward compatible changes in the future.
|
Format:
HEADER (3 bytes) "ORC"
STRIPE (0 or more stripes)
FILE-FOOTER
POST SCRIPT
PS LENGTH (1 byte)
Stripe:
INDEX-STREAM (0 or more)
DATA-STREAM (0 or more)
STRIPE-FOOTER
Copyright © 2012 The Apache Software Foundation