Random Matcher

The cells from the second table are attached to the first table. If selected, the node avoids creating duplicates from the second table. (However, if there are more rows in the first table than the second, this is not possible.)

If the user chooses a string column from both data tables, allocation depends on the values of these two columns. If possible, the new cells are chosen so that the columns match. (If there are no matches in the second column, we simply choose a random row.)

Options

Seed: the random seed
Unique selection: if selected, the node tries to minimize duplicates selected from the second table. (Slows down performance.)
1st table: column from the first table - if both are selected the node tries to select a row from the second table with the same value.
2nd table: column from the second table - if both are selected the node tries to select a row from the second table with the same value.

Input Ports

: original table (these rowkeys stay)
: new table (these rows are appended to the rows of the first table)

Output Ports

: rows starting with cells from a row from the first table and than the cells from a row from the second table follow.

Popular Predecessors

Popular Successors

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Workflows

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Installation

To use this node in KNIME, install the extension KNIME Data Generation from the below update site following our NodePit Product and Node Installation Guide:

v5.9

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

Plugin provider: KNIME AG, Zurich, Switzerland

Plugin version: 5.9.0.v202511132127

On NodePit since: 2025-12-11

Last update: 2026-01-19

KNIME versions: Since v3.6

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