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Extract Table Spec

KNIME Base Nodes version 4.3.2.v202103021015 by KNIME AG, Zurich, Switzerland

Node extracting the meta information from the input table (column names, types, etc.) The meta information is referred to as the table data specification and contains information such as column names, types, domain values (list of possible values for categorical columns) and lower and upper bounds. It also contains the information which of the columns have a view handler associated (optional operation). Each column in the input table is represented as a row in the output. This node can be used in conjunction with the Insert Column Header node, where the column names are extracted from the input table, then modified in the workflow and later merged back into the main table.


Extract property handlers
If checked the information which of the columns have property handlers e.g. color handler associated is extracted, otherwise not.
Possible values as collection
If checked, the possible values of each columns are extracted as possible values, otherwise not.

Input Ports

The input table to extract the psec from.

Output Ports

The output table containing the spec information of the input table.

Best Friends (Incoming)

Best Friends (Outgoing)



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