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If the :destination column already exists, the force option can be set to true to overwrite any existing data in that column. By default, the force option is set to false. For example, the following directive overwrites the values in col_b with the values in col_a:

Code Block
copy :col_a :col_b true

Usage Notes

The COPY directive will copy data from :source if :source column exists. If the :source doesn't exist in the record, the execution will fail with an error.

Copying makes a deep copy of the source into the destination. The type of data from the source in the destination column is maintained as-is.

To overwrite existing data, the source and destination column must have the compatible data types. For example, you cannot overwrite a column of type Double with a column of type String.


Using this record as an example: