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ORC Reader

StreamableKNIME BigData File Format Extension version 4.2.0.v202007031129 by KNIME AG, Zurich, Switzerland

Reader for ORC files. It reads either single files or all files in a given directory. Does support all ORC types except map, struct and union.

Options

Input: The file or directory to read.

Input Type Mapping

Change the ORC to KNIME type mapping configuration for subsequent nodes by selecting a KNIME type to the given ORC Type. The dialog allows you to add new or change existing type mapping rules.

Mapping by Name: Columns that match the given name (or regular expression) and ORC type will be mapped to the specified KNIME type.
Mapping by Type: Columns that match the given ORC type will be mapped to the specified KNIME type.

Input Ports

: Optional port for a remote connection.

Output Ports

: Data table containing the data of the ORC file.

Best Friends (Incoming)

ORC Writer (30 %) Streamable
Amazon S3 Connection (17 %)
HDFS Connection (11 %)
SSH Connection (8 %)
~~Table Row to Variable~~ (4 %) Deprecated
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Best Friends (Outgoing)

GroupBy (13 %)
Joiner (12 %)
Table Difference Checker (10 %)
Row Filter (9 %) Streamable
Column Filter (7 %) Streamable
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Workflows

00_Setup (KNIME Hub)
kn_example_python_read_orc_file (KNIME Hub)

Installation

To use this node in KNIME, install KNIME Extension for Big Data File Formats from the following update site:

KNIME 4.2

A zipped version of the software site can be downloaded here.

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Developers

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