Quote:
Originally Posted by maartencoertjens
If an unsuccesful search would put something like 'not found' in the ISBN column, then I could do the search only for the books for which I never did a search.
Maarten
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Create a custom column "ISBN extracted" and set it to 'true' on the books when you run the extraction.
If you only want to use extracted ISBNs you'll have to clear the ISBN field before you run the extraction -- it's not going to blank out an existing ISBN in the metadata if it doesn't find one in the text.