Is it possible to do a substring(0,10) with the BulkAttributeRenamer? I want to simulate truncating the columns as writing to shape does. I know I can do this with a SchemaMapper, this is my current workaround.
Solved
How to let the BulkAttributeRenamer do substring?
Best answer by david_r
You can use the regex replacement method. For example, this will truncate all attribute names to the first 10 characters:

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