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The cast transformation changes the data type of a column. Use it when the inferred type is wrong or the destination expects a specific type.

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When to Use

  • A string column contains numbers and should be numeric.
  • A date is stored as string and should be a date type.
  • The destination requires a specific type (e.g. boolean, integer).

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Example

Cast price from string to float. Values like “19.99” become 19.99.

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Supported Types

Common types include: string, integer, float, boolean, date, datetime. The exact set depends on the pipeline configuration.