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Version: 0.0.17

TableTransformer

Input type: Table

Output type: Table

Description​

Applies a transform on each value of a column. The input port type of the used transform has to match the type of the input column.

Example 1​


transform CelsiusToFahrenheit {
  from Celsius oftype decimal;
  to Fahrenheit oftype decimal;

  Fahrenheit: (Celsius * 9/5) + 32;
}

block CelsiusToFahrenheitTransformer oftype TableTransformer {
  inputColumns: ['temperature'];
  outputColumn: 'temperature';
  use: CelsiusToFahrenheit;
}

Given a column "temperature" with temperature values in Celsius, it overwrites the column with computed values in Fahrenheit by using the CelsiusToFahrenheit transform. The transform itself is defined elsewhere in the model.

Example 2​


transform CelsiusToFahrenheit {
  from Celsius oftype decimal;
  to Fahrenheit oftype decimal;

  Fahrenheit: (Celsius * 9/5) + 32;
}

block CelsiusToFahrenheitTransformer oftype TableTransformer {
  inputColumns: ['temperatureCelsius'];
  outputColumn: 'temperatureFahrenheit';
  use: CelsiusToFahrenheit;
}

Given a column "temperatureCelsius" with temperature values in Celsius, it adds a new column "temperatureFahrenheit" with computed values in Fahrenheit by using the CelsiusToFahrenheit transform. The transform itself is defined elsewhere in the model.

Properties​

inputColumns​

Type Collection<text>

Description​

The names of the input columns. The columns have to be present in the table and match with the transform's input port types.

outputColumn​

Type text

Description​

The name of the output column. Overwrites the column if it already exists, or otherwise creates a new one.

use​

Type Transform

Description​

Reference to the transform that is applied to the column.